Anderson C L, Agran P, Winn D
University of California, Irvine, Irvine, California, USA.
Annu Proc Assoc Adv Automot Med. 2000;44:67-73.
We compared the fatality risk for occupants of rear passenger seats in extended cab and crew cab pickup trucks to the fatality risk for front seat occupants of the same vehicles using the (US) Fatality Analysis Reporting System (FARS) for 1982-1997. A 10-digit truncated vehicle identification number was used to classify the pickup trucks. The data were analyzed with an estimating equation for data having few observations per stratum. We identified 549 extended cab pickup trucks with one or more occupants of rear passenger seats and one or more occupant deaths. Occupants of rear passenger seats had a fatality risk 43% lower than front seat occupants (95% confidence interval 32% to 52%), controlling for age, sex, and restraint use. Occupants of rear seats of extended cabs in compact pickup trucks did not experience any higher fatality risk (relative to front-seat occupants of the same vehicles) than rear seat occupants of extended cabs in full-size pickup trucks and large 4-door crew cabs.
我们使用1982 - 1997年的（美国）死亡分析报告系统（FARS），比较了双排座和四门双排座皮卡后乘客座位乘客的死亡风险与同一车辆前排座位乘客的死亡风险。使用10位截断的车辆识别号对皮卡进行分类。采用针对每层观测值较少的数据的估计方程对数据进行分析。我们识别出549辆双排座皮卡，这些皮卡有一名或多名后乘客座位乘客且发生了一例或多例乘客死亡。在控制年龄、性别和安全带使用情况后，后乘客座位乘客的死亡风险比前排座位乘客低43%（95%置信区间为32%至52%）。紧凑型皮卡双排座的后排座位乘客，与全尺寸皮卡和大型四门双排座皮卡双排座的后排座位乘客相比，（相对于同一车辆的前排座位乘客）并未面临更高的死亡风险。
