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

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	Name	Label	Folder
	psqi_c5 Pittsburgh Sleep Quality Index: Sleep disturbances component subscore	Pittsburgh Sleep Quality Index: Sleep disturbances component subscore Subscore based on 9 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_5b, psqi_5c, psqi_5d, psqi_5e, psqi_5f, psqi_5g, psqi_5h, psqi_5i, psqi_5j	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_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_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)
	psqi_c7 Pittsburgh Sleep Quality Index: Daytime dysfunction component subscore	Pittsburgh Sleep Quality Index: Daytime dysfunction 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_7, psqi_8	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_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_c6 Pittsburgh Sleep Quality Index: Use of sleeping medication component subscore	Pittsburgh Sleep Quality Index: Use of sleeping medication 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_6	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_total Pittsburgh Sleep Quality Index: Total (Global) Score	Pittsburgh Sleep Quality Index: Total (Global) Score Summary score for the Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) Seven component scores are derived, from 0 (no difficulty) to 3 (severe difficulty). The global score is the sum of the seven components (0 to 21), while higher scores indicate worse sleep quality. External semantic reference: CDE Search for all PSQI variables within this dataset	Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI)