Setting and Design
Anxiety, Fatigue
DISORDER, RECRUITMENT
Participants were enrolled via recruitment advertisements and sleep clinic recruitment in Peking University First Hospital from March 2021 to January 2022. Participants were assigned random numbers after completing at least a 3-day baseline sleep diary for either DCBT-I (intervention group) or sleep education only (control group). Visits were conducted on completion of the 6-week program and at 1, 3, and 6 months thereafter. Prior to each visit, participants were asked to complete a 1-week sleep diary and use a smart bracelet (Xiaomi Bracelet 3 NFC) for data collection . On the day of the visit, participants completed questionnaires on the ISI, Dysfunctional Beliefs and Attitudes About Sleep 16-item scale (DBAS-16), Fatigue Severity Scale, Generalized Anxiety Disorder Assessment 7-item (GAD-7), and Patient Health Questionnaire 9-item (PHQ-9), and Short-Form 12-item Health Survey (SF-12).Screening and randomization were conducted in the Peking University First Hospital. Follow-up visits were performed online or in the same hospital.