Cases were selected from an 11-year NASS/CDS data set spanning
1997 to 2007, inclusive. Cases were selected from NASS/CDS based on
the following criteria:
• Single event crash where a single passenger vehicle impacts a longitudinal barrier and the vehicle was inspected by a NASS investigator.
• Damage to the front of the vehicle
• Occupant is seated in the front left or front right seating position
(or both)
• No occupant ejection or vehicle rollover
• Known occupant belt and airbag status