Introduction: Crash data suggest an association between driver seatbelt use and child passenger restraint. However, community-based restraint use is largely unknown. We examined the association between driver seatbelt use and child restraint using data from a state-wide observational study. Methods: Data from Iowa Child Passenger Restraint Survey, a representative state-wide survey of adult seat belt use and child passenger safety, were analyzed. A total of 44,996 child passengers age 0–17 years were observed from 2005 to 2019. Information about driver seatbelt use and child restraint was directly observed by surveyors and driver age was reported. Logistic regression was used to examine the association between driver seatbelt use and child restraint adjusting for vehicle type, community size, child seating position, child passenger age, and year. Results: Over the 15-year study period, 4,114 (9.1%) drivers were unbelted, 3,692 (8.2%) children were completely unrestrained, and another 1,601 (3.6%) children were improperly restrained (analyzed as unrestrained). About half of unbelted drivers had their child passengers unrestrained (51.8%), while nearly all belted drivers had their child passengers properly restrained (92.3%). Compared with belted drivers, unbelted drivers had an 11-fold increased odds of driving an unrestrained child passenger (OR = 11.19, 95%CI = 10.36, 12.09). The association between driver seatbelt use and child restraint was much stronger among teenage drivers. Unbelted teenage drivers were 33-fold more likely (OR = 33.34, 95%CI = 21.11, 52.64) to have an unrestrained child passenger. Conclusion: These data suggest that efforts to increase driver seatbelt use may also have the added benefit of increasing child restraint use. Practical applications: Enforcement of child passenger laws and existing education programs for new drivers could be leveraged to increase awareness of the benefits of seatbelt use for both drivers themselves and their occupants. Interventions aimed at rural parents could emphasize the importance of child safety restraints.

简介：碰撞数据表明驾驶员安全带的使用与儿童乘客约束装置之间存在关联。然而，基于社区的约束使用在很大程度上是未知的。我们使用全州观察性研究的数据检查了驾驶员安全带使用与儿童约束装置之间的关联。方法：对来自爱荷华州儿童乘客约束调查的数据进行了分析，该调查是全州范围内对成人安全带使用和儿童乘客安全的代表性调查。从 2005 年到 2019 年，共观察到 44,996 名 0-17 岁的儿童乘客。有关驾驶员安全带使用和儿童约束的信息由调查员直接观察，并报告了驾驶员年龄。Logistic 回归用于检查驾驶员安全带的使用与针对车辆类型、社区规模、儿童座椅位置、儿童乘客年龄和年份调整的儿童约束装置之间的关联。结果：在 15 年的研究期间，有 4,114 名（9.1%）驾驶员未系安全带，3,692 名（8.2%）儿童完全未系安全带，另有 1,601 名（3.6%）儿童系不当（分析为未系安全带）。大约一半未系安全带的司机未对儿童乘客进行约束（51.8%），而几乎所有系安全带的司机都对儿童乘客进行了适当的约束（92.3%）。与系安全带的司机相比，未系安全带的司机驾驶未系安全带的儿童乘客的几率增加了 11 倍（OR = 11.19，95%CI = 10.36，12.09）。驾驶员安全带的使用与儿童约束装置之间的关联在青少年驾驶员中更为强烈。未系安全带的青少年司机有 33 倍的可能性 (OR = 33.34, 95%CI = 21.11, 52.64) 有未系好儿童乘客。结论：这些数据表明，增加驾驶员安全带使用的努力也可能带来增加儿童约束装置使用的额外好处。实际应用：可以利用儿童乘客法的执行和针对新驾驶员的现有教育计划来提高驾驶员自身及其乘员对使用安全带的好处的认识。针对农村父母的干预措施可以强调儿童安全约束的重要性。