2 - Search - Sleep Data - National Sleep Research Resource

Center for Epidemiologic Studies Depression Scale: Over the past 2 weeks, I felt fearful.

cesd_2 under General Health/Center for Epidemiologic Studies Depression Scale (CESD) in ANSWERS variables

Item from the CESD Questionnaire. Radloff, L. S. (1977)Search for all CESD Questionnaire variables within this dataset

Generalized Anxiety Disorder-7 Questionnaire: Please rate the following symptoms for the past two (2) weeks: Not being able to stop or control worrying

gad_2 under General Health/Generalized Anxiety Disorder Questionnaire (GAD-7) in ANSWERS variables

Item from the GAD-7 Questionnaire. Spitzer et al, 2006 (PubMed ID: 16717171) Search for all GAD-7 Questionnaire variables within this dataset

Insomnia Severity Index: Difficulty staying asleep

isi_2 under Sleep Questionnaires/Sleep Disturbance/Insomnia Severity Index (ISI) in ANSWERS variables

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

Pittsburgh Sleep Quality Index: Sleep latency component subscore

psqi_c2 under Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI) in ANSWERS variables

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:

Apnea-Hypopnea Index: Apneas with >=2% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and >=2% oxygen desaturation and with or without arousal / hour of sleep from type II polysomnography

rdi2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with >=2% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=2% oxygen desaturation or with arousal / hour of sleep from type II polysomnography

rdi2pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Death cause #2

death_cause_2 under Clinical Data/Incident Outcomes in WSC variables

Cause of death came from death certificates with an internal adjudication process to categorize cause of death into grouping for research purposes. Death certificate searches were completed on a regular basis. Due to delays in reporting of deaths and death searches, cause of death was not available for all known deaths; based on the last search, death year was available for deaths reported through 2017. (CVD = Cardiovascular Disease)

More Detail on Cause of Death #2

death_type_2 under Clinical Data/Incident Outcomes in WSC variables

Afib=Atrial Fibrillation, Athero_HD=Atherosclerosis, CHF=Congestive Heart Failure, MI=Myocardial Infarction, Vfib=Ventricular Fibrillation, PE=Pulmonary Embolism, AD=Alzheimers Disease, UTI=Urinary Track Infection, COPD=Chronic Obstructive Pulmonary Disease, ESRD=End Stage Renal Disease

rdi2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

rdi2pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (Non-Supine): Apneas with >=2% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >=2% oxygen desaturation and with or without arousal / hour of sleep in non-supine position from type II polysomnography

rdi2pns under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (Supine): Apneas with >=2% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >=2% oxygen desaturation and with or without arousal / hour of sleep in supine position from type II polysomnography

rdi2ps under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (NREM): Apneas with >= 2% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation and with or without arousal / hour of NREM sleep from type II polysomnography

rdinr2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (REM): Apneas with >= 2% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation and with or without arousal / hour of REM sleep from type II polysomnography

rdirem2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Percentage of stage 2 sleep among total sleep duration from type I polysomnography

timest2p under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables

Conventionally, total sleep duration would be called total sleep time (TST).Percent of sleep time in stage 2 [100*(number of minutes scored as stage 2) / (Total Sleep Time (TST))]

Baby looks when the mother calls his or her name

swyc_v2_2_mom under Lifestyle and Behavioral Health/Infant and Child Behavioral Health in SHINE variables

Maternal reportedItem from the visit 2 Survey of Wellbeing of Young Children Search for all Survey of Wellbeing of Young Children variables within this dataset

Central Apnea Index (NREM, Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

cardnba2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CFS variables