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ess_total under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS) in ABC variables
Calculated - Total score based on an 8-item questionnaires ranking likelihood of dozing off Johns MW 1991 (PubMed ID: 1798888). Scale 0-3 for individual items; 0 to 24 for overall score. Search for all ESS variables within this dataset
ess_8stoppedcar under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS) in ABC variables
spea12h under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)/Ancillary in HCHS variables
slea12h under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)/Baseline in HCHS variables
car5 under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS) in MESA variables
Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888) Original question: What is the chance that you would doze off or fall asleep (or just "feel tired") in each of the following situations? 12h. In a car, while stopped for a few minutes in traffic Search for all ESS variables within this dataset
stoppedcar under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)/Interim in SHHS variables
driving under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS) in CCSHS variables
Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888) Search for all ESS variables within this dataset 'I do not drive' responses should be set to missing when computing summary score.