Abstract summary 

In South Africa, the trucking industry employs over 70,000 people and the prevalence of chronic pain in this occupational group was reported at 10%. We investigated factors associated with chronic pain in truck drivers including mental health, physical activity, and sleep, as no study has done so.Southern African male, long-distance truck drivers were recruited at truck stops in Gauteng and Free State Provinces, South Africa (n = 614). Chronic pain was defined as pain present for at least the last three months. Depressive symptoms were assessed with the Patient Health Questionnaire-9, post-traumatic stress disorder with the Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5), exposure to traumatic events with the Life Events Checklist-5 (LEC-5) and daytime sleepiness with the Epworth Sleepiness Scale. Sleep quality was measured on a four-point Likert scale. Leisure-time physical activity was measured using the Godin-Shephard leisure-time physical activity questionnaire. Associations between these factors, demographic factors and chronic pain were investigated.Multivariate analysis showed that working ≥ 2 nights/week (OR = 2.68, 95% CI = 1.55-4.68) was associated with chronic pain and physical activity was protective (OR = 0.97, 95% CI 0.95-0.98). In an exploratory analysis, greater depressive symptoms (p = 0.004), daytime sleepiness (p = 0.01) and worse sleep quality (p = 0.001) was associated with working ≥ 2 nights/week. Lower leisure-time physical activity was associated with worse sleep quality (p = 0.006), but not daytime sleepiness or depressive symptoms (p>0.05).There is a clear relationship between working nights and activity levels, and chronic pain, sleep quality, and depression in truck drivers.

Authors & Co-authors:  Wadley Antonia L AL Iacovides Stella S Roche Johanna J Scheuermaier Karine K Venter W D Francois WDF Vos Alinda G AG Lalla-Edward Samanta T ST

Study Outcome 

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