Sleep Questionnaires - ANSWERS Variables - Sleep Data - National Sleep Research Resource - NSRR

We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.

	Name	Label	Folder
	ddnsi_1 Disturbing Dream and Nightmare Severity Index: How many nights in a week do you have nightmares?	Disturbing Dream and Nightmare Severity Index: How many nights in a week do you have nightmares? Item from the Disturbing Dream and Nightmare Severity Index (DDNSI) Search for all Disturbing Dream and Nightmare Severity Index variables within this dataset	Sleep Questionnaires/Parasomnia/Disturbing Dream and Nightmare Severity Index (DDNSI)
	ddnsi_2 Disturbing Dream and Nightmare Severity Index: How many nightmares do you have per week?	Disturbing Dream and Nightmare Severity Index: How many nightmares do you have per week? Item from the Disturbing Dream and Nightmare Severity Index (DDNSI) Search for all Disturbing Dream and Nightmare Severity Index variables within this dataset	Sleep Questionnaires/Parasomnia/Disturbing Dream and Nightmare Severity Index (DDNSI)
	ddnsi_3 Disturbing Dream and Nightmare Severity Index: How many times do the nightmares wake you up?	Disturbing Dream and Nightmare Severity Index: How many times do the nightmares wake you up? Item from the Disturbing Dream and Nightmare Severity Index (DDNSI) Search for all Disturbing Dream and Nightmare Severity Index variables within this dataset	Sleep Questionnaires/Parasomnia/Disturbing Dream and Nightmare Severity Index (DDNSI)
	ddnsi_4 Disturbing Dream and Nightmare Severity Index: How severe is your nightmare problem?	Disturbing Dream and Nightmare Severity Index: How severe is your nightmare problem? Item from the Disturbing Dream and Nightmare Severity Index (DDNSI) Search for all Disturbing Dream and Nightmare Severity Index variables within this dataset	Sleep Questionnaires/Parasomnia/Disturbing Dream and Nightmare Severity Index (DDNSI)
	ddnsi_5 Disturbing Dream and Nightmare Severity Index: How intense are your nightmares?	Disturbing Dream and Nightmare Severity Index: How intense are your nightmares? Item from the Disturbing Dream and Nightmare Severity Index (DDNSI) Search for all Disturbing Dream and Nightmare Severity Index variables within this dataset	Sleep Questionnaires/Parasomnia/Disturbing Dream and Nightmare Severity Index (DDNSI)
	ddnsi_total Disturbing Dream and Nightmare Severity Index: DDNSI Total Score	Disturbing Dream and Nightmare Severity Index: DDNSI Total Score Total from the Disturbing Dream and Nightmare Severity Index (DDNSI) Search for all Disturbing Dream and Nightmare Severity Index variables within this dataset	Sleep Questionnaires/Parasomnia/Disturbing Dream and Nightmare Severity Index (DDNSI)
	sds_1 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my work or other activities prevent me from getting at least 7hrs of sleep	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my work or other activities prevent me from getting at least 7hrs of sleep Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_10 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I snore	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I snore Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_11 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up with a dry mouth in the morning (cotton mouth)	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up with a dry mouth in the morning (cotton mouth) Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_12 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my snoring is so loud, that my bed partner complains	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my snoring is so loud, that my bed partner complains Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_13 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have been told that I stop breathing in my sleep	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have been told that I stop breathing in my sleep Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_14 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up choking or gasping for air	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up choking or gasping for air Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_15 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I feel uncomfortable sensations in my legs, especially when sitting or lying down, that are relieved by moving them	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I feel uncomfortable sensations in my legs, especially when sitting or lying down, that are relieved by moving them Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_16 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have an urge to move my legs that is worse in the evenings and nights	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have an urge to move my legs that is worse in the evenings and nights Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_17 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up frequently during the night for no reason	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up frequently during the night for no reason Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_18 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, when angered, humored, frightened, I experience sudden muscle weakness	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, when angered, humored, frightened, I experience sudden muscle weakness Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_19 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, when falling asleep or waking up, I experience scary dream-like images	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, when falling asleep or waking up, I experience scary dream-like images Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_2 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my bedtime or waketime varies by more than 3 hours	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my bedtime or waketime varies by more than 3 hours Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_20 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, when I am first awakening, I feel like I can't move	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, when I am first awakening, I feel like I can't move Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_21 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have nightmares	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have nightmares Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_22 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, for no reason, I awaken suddenly, startled, and feeling afraid	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, for no reason, I awaken suddenly, startled, and feeling afraid Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_23 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have been told that I walk, talk, eat, act strangely, or act violently when I sleep	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I have been told that I walk, talk, eat, act strangely, or act violently when I sleep Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_24 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I grind my teeth or clench my jaw during sleep	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I grind my teeth or clench my jaw during sleep Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_25 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my sleep difficulties interfere with my daily activities	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, my sleep difficulties interfere with my daily activities Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_3 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, it takes me 30 minutes or more to fall asleep	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, it takes me 30 minutes or more to fall asleep Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_4 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I am awake for 30 minutes or more during the night	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I am awake for 30 minutes or more during the night Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_5 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up 30 or more minutes before I have to and can't fall back asleep	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I wake up 30 or more minutes before I have to and can't fall back asleep Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_6 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I am tired, fatigued, or sleepy during the day	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I am tired, fatigued, or sleepy during the day Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_7 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I sleep better if I go to bed before 9PM and wake up before 4:30AM	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I sleep better if I go to bed before 9PM and wake up before 4:30AM Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_8 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I sleep better if I go to after 1am and wakeup after 9am	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I sleep better if I go to after 1am and wakeup after 9am Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	sds_9 Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I am prone to fall asleep at inappropriate times or places	Sleep Disorders Symptom Checklist - 25: For the past three (3) months, I am prone to fall asleep at inappropriate times or places Item from the Sleep Disorders Symptom Checklist - 25. Klingman et al 2017, Introducing the Sleep Disorders Symptom Checklist-25: A Primary Care Friendly and Comprehensive Screener for Sleep Disorders, Sleep Med Res 2017; 8(1): 17-25 Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset	Sleep Questionnaires/Sleep Disorder/Sleep Disorders Symptom Checklist-25
	wd_ema Weekday Early Morning Awakening	Weekday Early Morning Awakening Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Disturbance
	wd_nwak Weekday Number of Awakenings	Weekday Number of Awakenings Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Disturbance
	wd_sq Weekday Sleep Quality	Weekday Sleep Quality Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Disturbance
	we_ema Weekend Early Morning Awakening	Weekend Early Morning Awakening Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Disturbance
	we_nwak Weekend Number of Awakenings	Weekend Number of Awakenings Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Disturbance
	we_sq Weekend Sleep Quality	Weekend Sleep Quality Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Disturbance
	isi_1 Insomnia Severity Index: Difficulty falling asleep	Insomnia Severity Index: Difficulty falling asleep Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_2 Insomnia Severity Index: Difficulty staying asleep	Insomnia Severity Index: Difficulty staying asleep Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_3 Insomnia Severity Index: Problems waking up too early	Insomnia Severity Index: Problems waking up too early Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_4 Insomnia Severity Index: How satisfied with current sleep pattern	Insomnia Severity Index: How satisfied with current sleep pattern Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_5 Insomnia Severity Index: How noticeable to others is sleep problem impacting quality of life	Insomnia Severity Index: How noticeable to others is sleep problem impacting quality of life Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_6 Insomnia Severity Index: How worried/distressed about current sleep problem	Insomnia Severity Index: How worried/distressed about current sleep problem Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_7 Insomnia Severity Index: Sleep problem intereferes with daily functioning	Insomnia Severity Index: Sleep problem intereferes with daily functioning Item from Insomnia Severity Index. Morin (1993) Original question: Please rate the following symptoms for the past two (2) weeks. -Difficulty falling asleep Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	isi_total Insomnia Severity Index: Total Score	Insomnia Severity Index: Total Score Summary score for the Insomnia Severity Index. Morin (1993) Each item is scored from 0 to 4. Total score is the sum of all seven items (0 to 28), and catergorized as: absence of insomnia (0 to 7), sub-threshold insomnia (8 to 14), moderate insomnia (15 to 21), and severe insomnia (22 to 28). Search for all ISI variables within this dataset	Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI)
	msf Midpoint of sleep on weekends/freedays	Midpoint of sleep on weekends/freedays Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	msfsc1 Chronotype/Midpoint of sleep corrected for freedays	Chronotype/Midpoint of sleep corrected for freedays Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	msfsc2 Chronotype with missing data for individuals who use an alarm clock on weekends/freedays	Chronotype with missing data for individuals who use an alarm clock on weekends/freedays Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	msw Midpoint of sleep on Weekdays/workdays	Midpoint of sleep on Weekdays/workdays Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	socialjetlag Social Jet Lag	Social Jet Lag Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_bts Weekday Bedtime to Sleeptime	Weekday Bedtime to Sleeptime Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_se Weekday Sleep Efficiency	Weekday Sleep Efficiency Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_sol Weekday Sleep Onset Latency	Weekday Sleep Onset Latency Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_tfa Weekday Time of Final Awakening	Weekday Time of Final Awakening Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_tib Weekday Time in Bed	Weekday Time in Bed Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_tob Weekday Time out of Bed	Weekday Time out of Bed Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_tst Weekday Total Sleep Time	Weekday Total Sleep Time Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_ttb Weekday Time to Bed	Weekday Time to Bed Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_tts Weekday Time to Sleep	Weekday Time to Sleep Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_twt Weekday Total Wake Time	Weekday Total Wake Time Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	wd_waso Weekday Wake after Sleep Onset (WASO)	Weekday Wake after Sleep Onset (WASO) Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_bts Weekend Bedtime to Sleeptime	Weekend Bedtime to Sleeptime Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_se Weekend Sleep Efficiency	Weekend Sleep Efficiency Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_sol Weekend Sleep Onset Latency	Weekend Sleep Onset Latency Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_tfa Weekend Time of Final Awakening	Weekend Time of Final Awakening Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_tib Weekend Time in Bed	Weekend Time in Bed Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_tob Weekend Time out of Bed	Weekend Time out of Bed Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_tst Weekend Total Sleep Time	Weekend Total Sleep Time Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_ttb Weekend Time to Bed	Weekend Time to Bed Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_tts Weekend Time to Sleep	Weekend Time to Sleep Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_twt Weekend Total Wake Time	Weekend Total Wake Time Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	we_waso Weekend Wake after Sleep Onset (WASO)	Weekend Wake after Sleep Onset (WASO) Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset	Sleep Questionnaires/Sleep Habits
	psqi_1 Pittsburgh Sleep Quality Index: When usually gone to bed the past month	Pittsburgh Sleep Quality Index: When usually gone to bed the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, what time have you usually gone to bed at night? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_10 Pittsburgh Sleep Quality Index: Do you have a bed partner or roommate?	Pittsburgh Sleep Quality Index: Do you have a bed partner or roommate? Item related to Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: Do you have a bed partner or roommate? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_11a Pittsburgh Sleep Quality Index: Frequency of loud snoring in the past month reported by a roommate/bed partner	Pittsburgh Sleep Quality Index: Frequency of loud snoring in the past month reported by a roommate/bed partner Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. If you have a roommate or bed partner, ask him/her how often in the past month you have had: Loud snoring Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_11b Pittsburgh Sleep Quality Index: Frequency of long pauses between breaths while asleep in the past month reported by a roommate/bed partner	Pittsburgh Sleep Quality Index: Frequency of long pauses between breaths while asleep in the past month reported by a roommate/bed partner Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. If you have a roommate or bed partner, ask him/her how often in the past month you have had: Long pauses between breaths while asleep Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_11c Pittsburgh Sleep Quality Index: Frequency of legs twitching or jerking while asleep in the past month reported by a roommate/bed partner	Pittsburgh Sleep Quality Index: Frequency of legs twitching or jerking while asleep in the past month reported by a roommate/bed partner Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. If you have a roommate or bed partner, ask him /her how often in the past month you have had: Leg twitching or jerking while you sleep Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_11d Pittsburgh Sleep Quality Index: Frequency of episodes of disorientation or confusion during sleep in the past month reported by a roommate/bed partner	Pittsburgh Sleep Quality Index: Frequency of episodes of disorientation or confusion during sleep in the past month reported by a roommate/bed partner Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. If you have a roommate or bed partner, ask him/her how often in the past month you have had: Episodes of disorientation or confusion during sleep Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_11e Pittsburgh Sleep Quality Index: Frequency of other restlessness while asleep in the past month reported by a roommate/bed partner	Pittsburgh Sleep Quality Index: Frequency of other restlessness while asleep in the past month reported by a roommate/bed partner Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. If you have a roommate or bed partner, ask him/her how often in the past month you have had: Other restlessness while you sleep Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_2 Pittsburgh Sleep Quality Index: How long taken to fall asleep each night the past month	Pittsburgh Sleep Quality Index: How long taken to fall asleep each night the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, how long (in minutes) has it usually taken you to fall asleep each night? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_3 Pittsburgh Sleep Quality Index: What time gotten up in the morning the past month	Pittsburgh Sleep Quality Index: What time gotten up in the morning the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, what time have you usually gotten up in the morning? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_4 Pittsburgh Sleep Quality Index: Hours of actual sleep at night the past month	Pittsburgh Sleep Quality Index: Hours of actual sleep at night the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, how many hours of actual sleep did you get at night (this may be different than the number of hours you spend in bed)? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5a Pittsburgh Sleep Quality Index: Cannot get to sleep within 30 minutes the past month	Pittsburgh Sleep Quality Index: Cannot get to sleep within 30 minutes the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: cannot get to sleep within 30 mins? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5b Pittsburgh Sleep Quality Index: Wake in the middle or night or early morning the past month	Pittsburgh Sleep Quality Index: Wake in the middle or night or early morning the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Wake up in the middle of the night or early morning? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5c Pittsburgh Sleep Quality Index: Have to get up to use the bathroom the past month	Pittsburgh Sleep Quality Index: Have to get up to use the bathroom the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Have to get up to use the bathroom? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5d Pittsburgh Sleep Quality Index: Cannot breathe comfortably during sleep the past month	Pittsburgh Sleep Quality Index: Cannot breathe comfortably during sleep the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Cannot breathe comfortably? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5e Pittsburgh Sleep Quality Index: Cough or snore loudly during sleep the past month	Pittsburgh Sleep Quality Index: Cough or snore loudly during sleep the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Cough or snore loudly? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5f Pittsburgh Sleep Quality Index: Feel too cold during sleep the past month	Pittsburgh Sleep Quality Index: Feel too cold during sleep the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Feel too cold? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5g Pittsburgh Sleep Quality Index: Feel too hot during sleep the past month	Pittsburgh Sleep Quality Index: Feel too hot during sleep the past month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Feel too hot? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5h Pittsburgh Sleep Quality Index: Have bad dreams during sleep last month	Pittsburgh Sleep Quality Index: Have bad dreams during sleep last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Have bad dreams? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5i Pittsburgh Sleep Quality Index: Have pain during sleep last month	Pittsburgh Sleep Quality Index: Have pain during sleep last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Have pain? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_5j Pittsburgh Sleep Quality Index: Other reasons for trouble sleeping last month	Pittsburgh Sleep Quality Index: Other reasons for trouble sleeping last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: Other reason(s), please describe (select not during the past month if no other reasons apply) Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_6 Pittsburgh Sleep Quality Index: How often taken prescribed medicine to help with sleep last month	Pittsburgh Sleep Quality Index: How often taken prescribed medicine to help with sleep last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, how often have you taken medicine to help you sleep (prescribed or over the counter)? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_7 Pittsburgh Sleep Quality Index: Trouble staying awake while driving, eating, or engaging socially last month	Pittsburgh Sleep Quality Index: Trouble staying awake while driving, eating, or engaging socially last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, how often have you had trouble staying awake while driving, eating meals, or engaging in social activity? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_8 Pittsburgh Sleep Quality Index: Problem to keep up enthusiasm to get things done last month	Pittsburgh Sleep Quality Index: Problem to keep up enthusiasm to get things done last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, how much of a problem has it been for you to keep up enough enthusiasm to get things done? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_9 Pittsburgh Sleep Quality Index: Rate overall sleep quality last month	Pittsburgh Sleep Quality Index: Rate overall sleep quality last month Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Original text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month, how would you rate your sleep quality overall? Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_c1 Pittsburgh Sleep Quality Index: Subjective sleep quality component subscore	Pittsburgh Sleep Quality Index: Subjective sleep quality component subscore Subscore based on 1 item from Pittsburgh Sleep Quality Index, with a range of 0-3. A score of "0" indicates no difficulty, while a score of "3" indicates severe difficulty. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Search for all PSQI variables within this dataset Source: psqi_9	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_c2 Pittsburgh Sleep Quality Index: Sleep latency component subscore	Pittsburgh Sleep Quality Index: Sleep latency component subscore Subscore based on 2 items from Pittsburgh Sleep Quality Index, with a range of 0-3. A score of "0" indicates no difficulty, while a score of "3" indicates severe difficulty. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Search for all PSQI variables within this dataset Source: psqi_2 , psqi_5a	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_c3 Pittsburgh Sleep Quality Index: Sleep duration component subscore	Pittsburgh Sleep Quality Index: Sleep duration component subscore Subscore based on 1 item from Pittsburgh Sleep Quality Index, with a range of 0-3. A score of "0" indicates no difficulty, while a score of "3" indicates severe difficulty. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Search for all PSQI variables within this dataset Source: psqi_4	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)
	psqi_c4 Pittsburgh Sleep Quality Index: Habitual sleep efficiency component subscore	Pittsburgh Sleep Quality Index: Habitual sleep efficiency component subscore Subscore based on 3 items from Pittsburgh Sleep Quality Index, with a range of 0-3. A score of "0" indicates no difficulty, while a score of "3" indicates severe difficulty. Buysse et. al 1989 (PubMed ID: 2748771) External semantic reference: CDE Search for all PSQI variables within this dataset Source: psqi_1, psqi_3, psqi_4	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)