Musculoskeletal Pain and Work-related Risk Factors among Waste Collectors in Hanoi, Vietnam: A Cross-sectional Study

Bang Van Nguyen; Thuy Thi Thu Tran; Ngan Thi Hoang; Bich Ngoc Nguyen; Quynh Thuy Nguyen

doi:10.3889/oamjms.2020.4866

Authors

Bang Van Nguyen Department of Haematology, Toxicology, Radiation and Occupational Diseases, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
Thuy Thi Thu Tran Department of Occupational Health and Safety, Hanoi University of Public Health, Hanoi, Vietnam
Ngan Thi Hoang Department of Sales, Daiichi Life Insurance of Vietnam Company, Hanoi, Vietnam
Bich Ngoc Nguyen Department of Occupational Health and Safety, Hanoi University of Public Health, Hanoi, Vietnam
Quynh Thuy Nguyen Department of Occupational Health and Safety, Hanoi University of Public Health, Hanoi, Vietnam

DOI:

https://doi.org/10.3889/oamjms.2020.4866

Keywords:

Cross-sectional study, Musculoskeletal pain, Occupational health, Persistent, Risk factor, Solid waste, Vietnam

Abstract

BACKGROUND: Musculoskeletal disorders (MSDs) are prevalent among waste collectors (WCs) in developing countries.

AIM: This study aimed to investigate the prevalence of MSDs and the factors associated with the risk of persistent musculoskeletal pain among WCs in Hanoi, Vietnam.

METHODS: A cross-sectional survey was utilized to study 468 WCs in 2017. The Örebro Musculoskeletal Pain Questionnaire and a questionnaire on demographic and work conditions were used to collect data. Descriptive and multivariate logistics regression analyzes were applied at a significance level of 0.05 to examine the factors related to the risk of persistent pain.

FINDINGS: About 74.4% of the participants of this study experienced MSDs in at least one body region and 9.4% reported MSDs in all 10 body sites. The lower back was reported to be the most affected followed by the neck and shoulders. The risk of persistent musculoskeletal pain was significantly associated with age (odds ratio (OR) = 2.31, confidence interval (CI) = 1.05–5.09), gender (OR = 3.29, CI = 1.28–8.44), work hours (OR = 2.35, CI = 1.12–4.92), work shift (OR = 0.48, CI = 0.26–0.92), duration of poor postures of the neck (OR = 0.31, CI = 0.13–0.76), bent back (OR = 0.4 CI = 0.18–0.92) and for medial rotation (OR = 3.01, CI = 1.42–6.36), carrying heavy objects (OR = 2.94, CI = 1.15–7.48), and experience of work dissatisfaction (OR = 3.31, CI = 1.46-7.52), stress (OR = 7.14, CI = 3.14–16.24), or anxiety (OR = 6.37, CI = 3.07–13.21).

CONCLUSIONS: High prevalence of MSDs among WCs and its association with self-assessed unfavorable work postures and work-related stress implies the need of mechanical and social support at work for WC to prevent the development of MSDs and persistent pain.

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