Objective To investigate the occurrence of lower limb work-related musculoskeletal disorders (WMSDs) of workers in electronics manufacturing enterprises and to explore the influencing factors, providing scientific evidence for the prevention and control of lower limb WMSDs among these workers.

Methods From March to June 2022, all frontline workers in a large electronics equipment manufacturing enterprise in Fuzhou City were selected as the study subjects, and the"Chinese Version of the Musculoskeletal Disorders Questionnaire" was used to investigate and study the detection situation of WMSDs in the lower limbs, and logistic regression was used to analyze the influencing factors.

Results A total of 2 997 workers were surveyed, and 2 765 valid questionnaires were collected with an effective rate of 92.3%. The occurrence rate of lower limb WMSDs in this population was 13.9% (385/2 765), with 7.0% (195/2 765) in the legs, 6.4% (176/2 765) in the knees, and 8.9% (247/2 765) in the feet and ankles. The results of the multivariate logistic regression analysis showed that, compared with workers with < 5 years of service time, never or sometimes stood for long periods, never or sometimes worked in uncomfortable postures, not performing repetitive movements of the lower limbs and ankles during work, and not frequently work overtime, workers with 10 years or more of service time, often or very frequently stood for long periods, often or very frequently worked in uncomfortable postures, performing the same movement of the lower limbs and ankles frequently and repeatedly at work, frequently worked overtime had a higher detection rate of lower limb WMSDsOR = 1.506 (95%CI: 1.064 to 2.130), OR = 2.058 (95%CI: 1.535 to 2.758), OR = 1.784 (95%CI: 1.279 to 2.487), OR = 1.776 (95%CI: 1.373 to 2.297), OR = 1.430 (95%CI: 1.064 to 1.922); whereas compared with workers who had enough rest time, those who had insufficient rest time had a lower detection rate of lower limb WMSDs, reduced to 0.488 times (OR = 0.488, 95%CI: 0.379 to 0.628); all these differences were statistically significant (all P < 0.05).

Conclusions The occurrence of lower limb WMSDs among workers in the electronics manufacturing industry was influenced by various factors, including individual factors, ergonomic factors, and work organization. Comprehensive prevention and intervention measures should be taken to reduce the occurrence of lower limb WMSDs among workers in the electronics manufacturing industry.