Objective To study the causes, distribution,injury severity,and the first aid of pedestrian injury in different areas of Chongqing.Methods The data of traffic accidents from 1988 to 1997 of 2 traffic police teams in downtown,2 teams in suburb,1 team in county and 1 freeway team were investigated and analyzed retrospectively.ResultsThe number of the casualty,serious injury and death of pedestrians were 44.0%,56.4% and 59.1% compared with that of all the traffic casualties respectively.The main causes of pe...