Musculoskeletal disorders and risk factors of workers in Indian mining industry: a cross-sectional study
Background: No studies have evaluated the association between MSDs symptoms with socio-demographic characteristics and working conditions among miners in India. The purpose of this study was to assess the relationship between MSDs symptoms with socio-demographic characteristics and working conditions among quarry workers.
Methods: It is an analytical cross-sectional study among quarry workers with comparison groups in Karauli district in Rajasthan, India. Total 218 quarry workers with comparison groups of 203 never miners. A modified Standardized Nordic Questionnaire was adopted to measure the prevalence of MSDs. Main outcome measure variable was the prevalence of MSDs and assessed its association with socio- demographic and work-related characteristics.
Findings: Prevalence of musculoskeletal complaints during the past 12 months was higher among quarry workers (81.2%) than the comparison group (56.2%). Most affected body regions were low back (61.5%) among quarry workers followed by knee (39.4%) and shoulders (28.9%). The differences in the distribution of musculoskeletal complaints between quarry workers and comparison groups were statistically significant for the shoulders, elbows, upper back, lower back, and knees regions. Logistic regression analysis showed risk factors for MSDs were higher age, BMI (18.5-25) and past injury.
Conclusion: Study concluded that higher age and past injury resulted in the increased risk of MSDs. Among all the body part low back, knees and shoulders found to be higher. As more than three-fourth of quarry workers has the increased risk of developing MSDs, we suggest further research in the interventions that could reduce these risks.
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