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essscor under Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS) in CFS 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