Data
183,836 items of data are available, covering 183,836 participants, encoded using Data-Coding
339.
Notes
Question asked: "During the past 3 months, how much have you been bothered by feeling tired all the time or having low energy?"
The question in this field was taken from the Patient Health Questionnaire 12 Somatic Symptom scale (PHQ-12 SS) used with the publisher's permission.
Spiller RC, Humes DJ, Campbell E, et al. The Patient Health Questionnaire 12 Somatic Symptom scale as a predictor of symptom severity and consulting behaviour in patients with irritable bowel syndrome and symptomatic diverticular disease. Alimentary Pharmacology & Therapeutics. 2010;32:811-820