2.1. The ESPARR cohort
The ESPARR cohort is linked to the Rhône Area Registry of Road
Traffic Casualties (Charnay and Laumon, 2002), which records all
road traffic accident casualties seeking medical care in public or
private health facilities of the Rhône administrative area. Inclusion
criteria were:injured in a road traffic accidentinvolving atleast one
mechanical means of transport and occurring in the Rhône administrative
area; admitted to one of the area’s hospital emergency
departments; surviving the crash at least until hospital admission;
being resident in the study area (to facilitate follow-up) (Hours
et al., 2010).