[Study on the relationship between occupational exposure characteristics and musculoskeletal disorders in 29 industries or workforce groups in China]

Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2024 Dec 20;42(12):896-910. doi: 10.3760/cma.j.cn121094-20240904-00414.

[Article in Chinese]

Authors

N Jia¹, M B Zhang², Q Xu¹, H D Zhang³, R J Ling⁴, Y M Liu⁵, Z Wang⁶, G Li⁷, Y Yin⁸, H Shao⁹, J Li¹⁰, H D Zhang¹¹, B Qiu¹², D Y Wang¹³, Q Zeng¹⁴, R G Wang¹⁵, Y Ye¹⁵, B Xiao¹⁶, H Zou¹⁷, J C Chen¹⁸, D X Li¹⁹, Y Q Liu²⁰, Q H Shi²⁰, J X Liu²¹, E F Jiang²², J Qi²³, L Y Mei²⁴, X F Zhao²⁵, M M Yang¹, X W Guo¹, X Sun², Z X Wang¹

Affiliations

¹ Laboratory of Occupational Protection and Ergonomics, National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
² National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
³ Office of the Director, Chongqing Center for Disease Control and Prevention, Chongqing 400042, China.
⁴ Office of Hubei Clinical Medical Research Center for Occupational Diseases and Poisoning, Wuhan 430024, China.
⁵ Department of Occupational Health Management, Guangzhou Institute of Occupational Disease Control and Prevention, Guangzhou 510620, China.
⁶ Key Laboratory of Occupational Environment and Health, Guangzhou Institute of Occupational Disease Control and Prevention, Guangzhou 510620, China.
⁷ Liaoning Provincial Health Service Center, Shenyang 110399, China.
⁸ Department of Occupational Health, Shanghai Center for Disease Control and Prevention, Shanghai 200051, China.
⁹ Testing and Evaluation Center, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 255030, China.
¹⁰ Office of Beijing Institute of Chemical Industry Occupational Disease Prevention and Treatment, Beijing 100195, China.
¹¹ Occupational Disease Prevention Institute, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China.
¹² Office of Public Health Emergency Management, Civil Aviation Medical Center, Civil Aviation Administration of China, Beijing 100010, China.
¹³ Department of Physical Examination, Tianjin Occupational Diseases Precaution and Therapeutic Hospital, Tianjin 300011, China.
¹⁴ Institute of Occupational Health, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
¹⁵ Institute of Occupational Health, Beijing Center for Disease Control and Prevention, Beijing 100013, China.
¹⁶ Institute of Physical Factors Monitoring, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China.
¹⁷ Institute of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China.
¹⁸ Medical Department, Fujian Province Occupational Disease and Chemical Poisoning Prevention and Control Center, Fuzhou 350025, China.
¹⁹ Office of the Guizhou Province Occupational Disease Prevention and Control Hospital, Guiyang 610599, China.
²⁰ Occupational Disease Hospital, Institute of Occupational Medicine of Jiangxi, Nanchang 330006, China.
²¹ Office of the Ningxia Center for Disease Control and Prevention, Yinchuan 750003, China.
²² Institute of Occupational and Radiation Health, Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610044, China.
²³ Institute of Occupational Health and Radiological Hygiene, Yunnan Provincial Center for Disease Control and Prevention, Kunming 650118, China.
²⁴ Institute of Health Surveillance, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430070, China.
²⁵ Institute of Occupational and Radiological Health, Shaanxi Provincial Centre for Disease Control and Prevention, Xi'an 710054, China.

PMID: 39746680
DOI: 10.3760/cma.j.cn121094-20240904-00414

Abstract
in English, Chinese

Objective: To explore the occupational contact characteristics of work-related musculoskeletal disorders (WMSDs) among key occupational groups in China, assess the impact of occupational factors on the occurrence of WMSDs, and propose corresponding preventive strategies. Methods: Between January 1, 2018, and December 31, 2023, a cross-sectional epidemiological survey method was employed to retrospectively investigate the occurrence of WMSDs and related occupational factors. Valid questionnaire data from 88609 on-the-job workers in 441 enterprises across 29 industries or job types in seven regions of China were collected, and the relationship between WMSDs and various occupational factors was discussed using multifactorial logistic regression analysis. Odds ratios (OR) and their 95% confidence intervals (CI) were calculated to assess the impact of different factors on the risk of WMSDs occurrence, with all statistical tests performed as two-tailed tests, using P<0.05 as the criterion for statistical significance. Results: Among the surveyed subjects, 59989 were male, accounting for 67.7% (59989/88609) ; 28620 women, accounting for 32.3% (28620/88609). The standardized incidence rate of work related musculoskeletal disorders (WMSDs) in 9 parts of the body was statistically significant (P<0.05) among different working age groups without considering specific parts. The average length of service for onset of WMSDs (regardless of location) is (4.52±2.67) years, and there is a statistically significant difference in the length of service for onset of WMSDs in different locations (P<0.05). As the frequency of heavy object handling increases, the standardization rate and OR value of WMSDs in various parts show a significant increase trend. The incidence of WMSDs is significantly correlated with maintaining poor work posture for a long time, frequent repetitive operations, and heavy object handling (OR=1.52, 1.45, 1.63, P<0.01) . Conclusion: This study reveals that the risk of WMSDs in China's occupational population shows a non-linear change with increasing length of service, especially with a significant increase in 10 to 25 years of service. Poor work posture, frequent repetitive operations, and heavy object handling are significantly correlated with WMSDs, providing a scientific basis for developing more accurate and effective prevention strategies for WMSDs.

目的： 探索我国重点职业人群工作相关肌肉骨骼疾患（WMSDs）的职业接触特征，评估职业因素对WMSDs发生的影响，并提出相应的预防策略。 方法： 于2018年1月1日至2023年12月31日，采用横断面流行病学调查方法，回顾性调查WMSDs的发生情况及相关职业因素。收集了来自我国七个地区29个行业或作业类型441家企业的88 609名在岗工人的有效问卷数据，运用多因素logistic回归分析探讨WMSDs与各种职业因素之间的关系，计算了优势比（odds ratio，OR）及其95%置信区间（confidence interval，CI），以评估不同因素对WMSDs发生风险的影响。 结果： 调查对象中男性59 989人，占67.7%（59 989/88 609）；女性28 620人，占32.3%（28 620/88 609）。在不考虑具体部位的情况下，全身9个部位的工作相关肌肉骨骼疾患（WMSDs）的标化发生率在不同工龄组间差异有统计学意义（P<0.05）。WMSDs（不分部位）的平均发病工龄为（4.52±2.67）年，不同部位WMSDs发病工龄的差异有统计学意义（P<0.05）。随着搬运重物频率的增加，各部位WMSDs的标化率和OR值均呈现明显增加的趋势。长时间保持不良工作姿势频繁重复操作、重物搬运与WMSDs的标准发生率明显相关（OR=1.52、1.45、1.63，P<0.01）。 结论： 本研究揭示了我国职业人群中WMSDs风险随工龄增长呈非线性变化，尤其在10至25年工龄时明显增加，且不良工作姿势、频繁重复操作和重物搬运与WMSDs明显相关，为制定更为精确和有效的WMSDs预防策略提供了科学依据。.

Keywords: Incidence; Occupational exposure character; Occupational population; Preventive strategies; Work-related musculoskeletal disorders.

Publication types

English Abstract

MeSH terms

Adult
China / epidemiology
Cross-Sectional Studies
Female
Humans
Incidence
Industry / statistics & numerical data
Logistic Models
Male
Middle Aged
Musculoskeletal Diseases* / epidemiology
Musculoskeletal Diseases* / etiology
Occupational Diseases* / epidemiology
Occupational Exposure* / statistics & numerical data
Occupations / statistics & numerical data
Retrospective Studies
Risk Factors
Surveys and Questionnaires

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