Road crash involvement and professional status:A prospective study using the French Gazel cohort
ObjectivesTo assess professional status (PS) differences in the risk of road crash involvement (RCI) (irrespective of crash severity), and to examine the underlying mechanism by evaluating the role of exposure to road risk (ERR).MethodA total of 15,271 subjects selected from the French GAZEL cohort were studied. A proportional hazard model for recurrent events was used to calculate the relative risks (RR) of RCI associated with PS. The associations between RCI and PS were investigated by adjusting for ERR (kilometers travelled and risk behaviors on the road).ResultsIn all, 1890 RCI were reported. Managers have greater crude RCI risk than unskilled workers (male, RR = 1.30; female, RR = 1.44). This difference was no longer statistically significant when adjusting for factors describing the drivers’ behaviors. Female managers’ risks were also insignificant when adjusted for vehicle kilometers travelled (VKT). Managers seemed at lower risk of injury when involved in a crash.ConclusionSocially advantaged subjects have the greatest RCI risk. Qualitative and quantitative ERR factors explain these disparities. These results highlight the importance to focus on ERR when studying the effect of an individual characteristic on RCI. They also highlight the importance to analyse separately the “RCI” and the “susceptibility to injury”.
E. LenguerrandaEmail:erik.lenguerrand@inrets.fr J.-L. Martina M. Chirona E. Lagardef B. Laumona
[a]Unité mixte de recherche et surveillance transport travail environnement, UMRESTTE, Bron 69675, France;[b]Institut national de recherche sur les transports et leur sécurité INRETS, Bron 69675, France;[c]Université de Lyon, Lyon 69003, France;[d]Université Lyon-1, faculté de médecine Grange-Blanche, Lyon 69003, France;[e]Epidemiological Research and Surveillance Unit in Transport, Occupation and Environment (UMRESTTE), UMR T 9405, French National Institute for Transport and Safety Research (INRETS), Université Lyon 1, InVS, Bron, F-69675, France; Université de Lyon, Lyon, F-69003, France;[f]Inserm, équipe avenir santé et insécurité routière U593, Bordeaux 33076, France;[g]Institut de santé publique et de développement, Bordeaux 33076, France;[h]Institut fédératif de recherche de santé publique (IFR99), Bordeaux 33076, France
Road crash involvement Social disparities Exposure to road risk Cohort study
