The number of quarter-turns is one widely used metric for rollover severity. However, this metric does not adequately recognize the consequences of impacts with fixed objects or with other vehicles that may occur before or during the rollover. Since 1995, the NASS/CDS includes a measurement of the extent of vehicle damage. The database permits rollovers to be grouped according to whether or not a harmful crash event preceded or succeeded the rollover. Groupings can also include the extent of vehicle damage and the number of quarter turns. In NASS/CDS 1995-2003, belted occupants in rollover crashes that were preceded by impacts with fixed or non-fixed objects and with severe extent of damage had injury risk three times higher than all other rollover groupings. This high risk group requires the extent of damage as a rollover severity metric. When higher injury risk cases with severe damage were removed, chi square tests showed significance of the relationship between the number vehicle inversions and the occupant injury outcome.