This paper presents the main results of four French accident analyses. After a short presentation of the principal characteristics of these four data banks, we investigate rollover frequency and the general conditions of the origins of this type of accident:​ time and day of occurrence, type of roads, carriageway conditions and vehicle behaviour. This study includes the severity and distribution of injuries, the vehicle components causing injuries with special attention to ejection and roof damage. Although the objectives of these surveys are different, some trends could be observed. Rollover frequency is between 2.85% and 5% and decreases over time. The most severe injuries often concern the head, but no unambiguous relationship between injury severity and roof deformation was detected. Finally, ejection remains a high risk in rollover.