Association between Road Traffic Injury and Multimorbidity in Brazil-Results from Pesquisa Nacional de Saude

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Background: Globally, road traffic injury (RTI) is predicted to become the fifth leading cause of mortality by 2030. In addition to the burden of RTI, multimorbidity (MM) is increasingly becoming a health concern across all age groups. If MM is left unaddressed, individuals suffering from RTI will most likely experience delayed recovery and poorer health outcomes. Thus, there is a need to examines the association between RTI and MM in order to inform post-injury care practices.

Methods: This study is a cross-sectional analysis of the 2013 Brazilian National Health Survey. 60,202 individuals, aged 18 and above, were included in this study. Univariate and bivariate analyses were used to explore the relationship between demographic variables, chronic diseases, MM and RTI. Network analysis was used to identify multimorbidity patterns.

Results: Out of those who had experienced RTI (n=1910), 16.50% have reported having a multimorbid condition. Age, gender, risky alcohol use and regions were key predictors of RTI. Risky alcohol use was one of the direct nodes that connected RTI to other morbidities. Within the road traffic injured population, seven multimorbid communities were identified, with two communities being the most central: the cardio-metabolic morbidities and physical-mental morbidities.

Conclusions: Risky use of alcohol was a key predictor of RTI and a potential mediator in the association between RTI and other morbidities. Given that the temporal association between RTI and MM could not be established in this study, additional studies are needed to further assess the direction of the association between RTI and MM.






Pokam Tchuisseu, Yolande Bertille (2019). Association between Road Traffic Injury and Multimorbidity in Brazil-Results from Pesquisa Nacional de Saude. Master's thesis, Duke University. Retrieved from


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