Analysis on influence factors of musculoskeletal disorders of the shoulder and the population attributable risk of workers in an automobile manufacturing company in Shiyan City
Objective To investigate the factors and percentage of population attributable risk ratios(PAR％)for shoulder musculoskeletal disorders(MSDS)among workers in automobile manufacturing companies and provide a rationale for screening focused interventions.Methods A cross-sectional survey was conducted from October to November 2022,and workers in an automobile manufacturing enterprise in Shiyan City were selected as the study subjects to investigate the prevalence of shoulder musculoskeletal disorders during the past year among workers using the Chinese Musculoskeletal Disorders Questionnaire(CMQ).The x2 test was used to compare the differences in the prevalence among different types of population,and the multivariate log binomial regression model was used to calculate the PR value,and the PAR％of occupation influencing factors with statistical significance was further calculated.Results The prevalence of MSDs in shoulders among workers in this automobile manufacturing enterprise was 37.3％.The results of multivariate log binomial regression analysis showed that female workers(PR=1.43,95％CI:1.29-1.58),aged 30-＜40 years(PR=1.73,95％CI:1.30-2.35),40-＜50 years(PR=1.92,95％CI:1.48-2.57),and ≥50 years(PR=2.10,95％CI:1.62-2.82),high work pressure(PR=1.17,95％CI:1.05-1.32),working＞5 days per week(PR=1.11,95％CI:1.01-1.22),working hours per week＞40 h(PR=1.10,95％CI:1.00-1.20),unsatisfactory work environment(PR=1.43,95％CI:1.31-1.57),working posture involving wrist flexion(PR=1.26,95％CI:1.04-1.51),and desk-bound status(PR=1.26,95％CI:1.15-1.37)were all the influencing factors for shoulder MSDs among workers in automobile manufacturing company.The PAR％of the main occupational risk factors were 13.18％of higher work stress,12.04％of working posture involving wrist flexion,and 7.20％for desk-bound working,respectively.Conclusion The prevalence rate of shoulder among workers in this automobile manufacturing company is relatively high.High work stress,working posture involving wrist flexion,and desk-bound working are the key intervention factors for the entriprise to prevent and control shoulder MSDs among workers.
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