Does sleep quality modify the relationship between common mental disorders and chronic low back pain in adult women?

Lidiane Barazzetti; Anderson Garcez; Patrícia Cilene Freitas Sant'Anna; Fernanda Souza de Bairros; Juvenal Soares Dias-da-Costa; Maria Teresa Anselmo Olinto

doi:10.1016/j.sleep.2022.05.006

Does sleep quality modify the relationship between common mental disorders and chronic low back pain in adult women?

Sleep Med. 2022 Aug:96:132-139. doi: 10.1016/j.sleep.2022.05.006. Epub 2022 May 13.

Authors

Lidiane Barazzetti¹, Anderson Garcez², Patrícia Cilene Freitas Sant'Anna³, Fernanda Souza de Bairros⁴, Juvenal Soares Dias-da-Costa⁵, Maria Teresa Anselmo Olinto⁶

Affiliations

¹ Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil; Department of Physiotherapy, University Center of Serra Gaúcha, FSG, Caxias do Sul, RS, Brazil.
² Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil; Nutrition Sciences, Federal University of Health Science of Porto Alegre, UFCSPA, Porto Alegre, RS, Brazil.
³ Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil.
⁴ Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil; Department of Collective Health, Federal University of Rio Grande do Sul, UFRGS, Porto Alegre, RS, Brazil.
⁵ Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil; Department of Medicine, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil.
⁶ 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: mtolinto@gmail.com.

PMID: 35661055
DOI: 10.1016/j.sleep.2022.05.006

Abstract

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). Poisson regression with robust variance was used to estimate the prevalence ratios (PR) with 95% confidence intervals (CI).

Results: The prevalence of CLBP, CMD, and poor sleep quality was 46.8% (95% CI: 43.8-49.8), 33.5% (95% CI: 30.3-36.3), and 42.3% (95% CI: 39.3-45.2), respectively. Poor sleep quality was a significant modifier of the association between CMD and CLBP. Among women with poor sleep quality, women with CMD had a 48% higher probability of having CLBP compared to women without CMD and after adjustment for confounders (PR = 1.48; 95% CI: 1.23-1.77; p < 0.001). The relationship between CMD and CLBP was not statistically significant in women with good sleep quality.

Conclusions: This study revealed a significant relationship between CMD and CLBP, wherein poor sleep quality acted as an effect modifier. Women with CMD and poor sleep quality were more vulnerable to CLBP.

Keywords: Chronic low back pain; Common mental disorders; Sleep quality; Women's health.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adult
Aged
Brazil / epidemiology
Chronic Pain* / epidemiology
Cross-Sectional Studies
Female
Humans
Low Back Pain* / epidemiology
Mental Disorders* / epidemiology
Middle Aged
Prevalence
Sleep Initiation and Maintenance Disorders*
Sleep Quality
Young Adult