[Meta-analysis of incidence and influencing factors of low back pain among automobile manufacturing workers in China].

To systematically evaluate the incidence of low back pain (LBP) and analyze its main influencing factors among automobile manufacturing workers in China. In March 2024, literatures related to LBP of workers in the automotive manufacturing industry were retrieved from China National Knowledge Infrastructure (CNKI) , VIP China Science and Technology Journal Database, Wanfang Database, PubMed, and Web of Science Database. The search time range was from the establishment of the database to March 2024, and the literature was screened according to the inclusion and exclusion criteria. After evaluating the quality of the article using the quality evaluation criteria recommended by the Agency for Healthcare Research and Quality in the United States, Stata 17.0 software was used for analysis. Random effects models or fixed effects models were selected based on the degree of heterogeneity to calculate the combined effect size, and subgroup analysis and analysis of influencing factors of LBP were conducted. A total of 16 articles were included, with a total sample size of 22245 people. The literature quality score ranged from 6 to 8 points. The results of the Meta-analysis showed that the incidence of LBP among automobile manufacturing workers in China was 32% (95%: 22%, 42%) . The results of subgroup analysis showed that the incidence of LBP among automotive manufacturing workers aged ≥30 years was 39% (95%: 22%, 57%) , which was higher than that among automotive manufacturing workers aged <30 years (24%, 95%: 17%, 32%) . The incidence of LBP among automotive manufacturing workers with a length of service of ≥5 years was 40% (95%: 23%, 56%) , which was higher than that among automotive manufacturing workers with a length of service of <5 years (24%, 95%: 16%, 33%) . The incidence of LBP reported from 2011 to 2017 (39%, 95%: 18%, 60%) was higher than that from 2018 to 2023 (28%, 95%: 20%, 36%) . Working in an uncomfortable posture (=3.72, 95%: 2.05, 6.77) , standing for a long time while working (=1.97, 95%: 1.61, 2.42) , carrying heavy objects (=1.93, 95%: 1.63, 2.30) , bending over while working (=1.86, 95%: 1.60, 2.17) and frequent overtime work (=2.38, 95%: 1.44, 3.92) were both risk factors for LBP among workers in the automotive manufacturing industry (<0.05) , while sufficient rest time (=0.55, 95%: 0.48, 0.63) was a protective factor (<0.05) . The incidence of LBP among workers in China's automotive manufacturing industry is relatively high. Working in an uncomfortable posture, standing for a long time, carrying heavy objects, bending over for work, frequent overtime work and sufficient rest time are the influencing factors of LBP among workers in the automotive manufacturing industry. Preventive measures should be actively taken in response to the above influencing factors to effectively reduce the incidence of LBP among workers in China's automotive manufacturing industry.