title: Decomposing the association between the amount of exposure and the frequency of self-reported involvement in a road crash.
abstract: We tried to obtain preliminary evidence to test the hypothesis that the association between driving exposure and the frequency of reporting a road crash can be decomposed into two paths: direct and indirect (mediated by risky driving patterns). In a cross-sectional study carried out between 2007 and 2010, a sample of 1114 car drivers who were students at the University of Granada completed a questionnaire with items about driving exposure during the previous year, risk-related driving circumstances and involvement in road crashes. We applied the decomposition procedure proposed by Buis for logit models. The indirect path showed a strong dose-response relationship with the frequency of reporting a road crash, whereas the direct path did not. The decomposition procedure was able to identify the indirect path as the main explanatory mechanism for the association between exposure and the frequency of reporting a road crash.
authors.affiliation: Department of Preventive Medicine and Public Health, School of Medicine, University of Granada, Granada, Spain. eladiojimenez@ugr.es
authors.forename: Eladio
authors.initials: E
authors.lastname: Jiménez-Mejías
authors.forename: Pablo
authors.initials: P
authors.lastname: Lardelli-Claret
authors.forename: José Juan
authors.initials: JJ
authors.lastname: Jiménez-Moleón
authors.forename: Carmen
authors.initials: C
authors.lastname: Amezcua-Prieto
authors.forename: José
authors.initials: J
authors.lastname: Pulido Manzanero
authors.forename: Juan de Dios
authors.initials: Jde D
authors.lastname: Luna-del-Castillo
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data*; D001334:Automobile Driving / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D006801:Humans; D012307:Risk Factors; D012309:Risk-Taking; D057566:Self Report