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During the past month, when you lie awake in bed, how often do you think about the following?

During the past month, when you lie awake in bed, how often do you think about the following?

During the past month, when you lie awake in bed, how often do you think about the following?

During the past month, when you lie awake in bed, how often do you think about the following?

During the past month, when you lie awake in bed, how often do you think about the following?

During the past month, when you lie awake in bed, how often do you think about the following?

During the past month, when you lie awake in bed, how often do you think about the following?

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): 17-25Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset

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): 17-25Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset

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): 17-25Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset

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): 17-25Search for all Sleep Disorders Symptom Checklist - 25 variables within this dataset

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

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

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

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

Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771)External semantic reference: CDEOriginal 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

Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771)External semantic reference: CDEOriginal 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

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:

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

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