Sleep Med 2022 Aug 13;96:132-139. Epub 2022 May 13.
Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil; Food, Nutrition and Health, Federal University of Rio Grande do Sul, UFRGS, Porto Alegre, RS, Brazil. Electronic address:
Objective: This study explored the association between common mental disorders (CMD) and chronic low back pain (CLBP) in women, while considering poor sleep quality as a potential effect modifier of this relationship.
Methods: A cross-sectional population-based study was conducted with a representative sample of 1068 women (age 20-69 years) living in the urban area of São Leopoldo, RS, Brazil. CLBP was defined as pain lasting for ≥3 months; CMD was assessed using the Self-Reporting Questionnaire (SRQ-20; score ≥8); poor sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI; score ≥5). Read More