Patterns and predictors of work-related musculoskeletal disorders among commercial tricycle (keke napep) riders in Nigeria

Abstract

Objective: This study assessed the prevalence, pattern and predictors of Work related Musculoskeletal Disorders (WMSD) among tricycle (keke) ridders in Nigeria. Method: A total of 384 keke riders participated in this cross-sectional study. WMSD was assessed with Cornwell questionnaire while the demographic, job related, and anthropometric variables were assessed with the use of a self-designed interview guide. Data obtained was analysed descriptively using frequency and percentage, mean and standard deviation and inferentially using chi-square and logistic regression. Level of significance was set at α = 0.05. Results: The mean age of the participants was 38.73 ± 10.55 years with a mean ridding duration 8.50 ± 1.39 h/day. The general WMSD prevalence in this study was 79.9%; and was more prevalent at the low back (60.4%), neck (49.7%) and shoulder (39.8%) regions. There was a significant association between the general WMSD and each of ridding with passengers in the front cabin (X2 = 19.156, p < 0.001), vibration (X2 = 28.568, p = 0.001), twist while making a turn (X2 = 39.874, p < 0.001), awkward sitting posture (X2 = 4.243, p = 0.039). Twisting while ridding (OR = 1.006, p = 0.009) and job stress (OR = −1.398, p = 0.01) were the significant predictors of general WMSD. Conclusion: There is a high prevalence of WMSD among Nigerian Tricycle ridders. Job stress and twisting while driving are important predictors of WMSD in this group. Ergonomic training programmes are recommended for this population.