The association between sleep duration,overweight/obesity,and multimorbidity among primary care medical staff

JIANG Hong; LEI Haoyuan; GENG Hui; HE Dandan; ZHANG Yanxiu; MA Mao

doi:10.12173/j.issn.1004-5511.202502038

Abstract：Objective To investigate the association of sleep duration and overweight/obesity with the risk of multimorbidity among primary care medical staff.Methods Medical staff of primary health service institutions in Shaanxi Province were selected as the study subjects using the convenient cluster sampling method.Information about personal life behavior was collected via online questionnaire.The association between sleep duration,overweight/obesity and chronic diseases and multimorbidity was analyzed.Results A total of 3,483 primary care medical staff were included.The prevalence rate of multimorbidity in the present study was 7.78％.Multivariate ordinal Logistic regression analysis showed that poor sleep(＜7 h or＞9 h)[OR=1.31,95％CI(1.05,1.64)]and overweight/obesity(BMI≥24.0 kg/m2)[OR=2.06,95％CI(1.69,2.52)]were associated with increased risk of multimorbidity.A U-shaped curve was observed between sleep time and the risk of multimorbidity by using the cubic spline model,with the participants who slept 7～9 h had the lowest risk of multimorbidity and BMI showed a linear association with the risk of such disease.The results of joint analysis revealed that optimal sleep combined with overweight/obesity[OR=2.11,95％CI(1.70,2.64)]and suboptimal sleep combined with overweight/obesity[OR=3.12,95％CI(2.28,4.25)]were significantly associated with an increased risk of multimorbidity compared with those with optimal sleep combined with lean/normal weight.Conclusion Suboptimal sleep,overweight/obesity and their interactions are significantly associated with an increased risk of multimorbidity,and therefore,improve sleep and establish a healthy lifestyle might be a potential useful strategy for multimorbidity prevention among medical staff of primary health service institutions.