Hoffman Melissa R, Lambert William E, Peck Ellen G, Mayberry John C
Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland, Oregon 97239, USA.
J Trauma. 2010 Nov;69(5):1112-7; discussion 1117-9. doi: 10.1097/TA.0b013e3181f990a1.
Few data exist on the risk of injury while commuting to work or school by bicycle. The proportion of commuters choosing to travel by bike is increasing in the United States, and information on injury incidence and the influences of rider characteristics and environmental factors may suggest opportunities for prevention actions.
Bicycle commuters in the Portland, OR, metropolitan area were recruited via the websites and community advertising to participate in a 1-year study. Riders completed an initial online survey along with 12 monthly surveys describing their commutes and injury events from September 2007 to August 2008. A traumatic event was considered a serious traumatic event if medical attention was sought.
Nine hundred sixty-two adult bicyclists (52% men and 48% women) with a mean age of 36.7 ± 0.4 years (range, 22-70 years) commuted an average of 135 miles (range, 7-617) per month. There were 225 (23%) beginner, 256 (27%) intermediate, and 481 (50%) advanced riders. Four hundred twenty (44%) had a prior traumatic event. Over the 1-year period, 164 (18%) riders reported 192 traumatic events and 49 (5%) reported 50 serious traumatic events. The incidence rates of traumatic events and serious traumatic events were 15.0 (95% CI, 13.2-17.5) and 3.9 (95% CI, 2.9-5.1) per 100,000 miles commuted. There were no differences in age, gender, safety practices, and experience levels between commuters who experienced a traumatic event and those who did not.
Approximately 20% of bicycle commuters experienced a traumatic event and 5% required medical attention during 1 year of commuting. Traumatic events were not related to rider demographics, safety practices, or experience levels. These results imply that injury prevention should focus on improving the safety of the bicycle commuting environment.
关于骑自行车上下班或上学时受伤风险的数据很少。在美国，选择骑自行车通勤的人数比例正在增加，而有关受伤发生率以及骑车人特征和环境因素影响的信息可能会为预防措施提供机会。
通过网站和社区广告招募俄勒冈州波特兰市大都市区的自行车通勤者参与一项为期1年的研究。骑车人完成了一份初始在线调查问卷，以及从2007年9月至2008年8月描述其通勤情况和受伤事件的12份月度调查问卷。如果寻求了医疗护理，则创伤事件被视为严重创伤事件。
962名成年自行车骑行者（52%为男性，48%为女性），平均年龄为36.7±0.4岁（范围为22 - 70岁），每月平均通勤135英里（范围为7 - 617英里）。有225名（23%）初学者、256名（27%）中级骑行者和481名（50%）高级骑行者。420名（44%）有过创伤事件。在这1年期间，164名（18%）骑行者报告了192起创伤事件，49名（5%）报告了50起严重创伤事件。每通勤100,000英里，创伤事件和严重创伤事件的发生率分别为15.0（95%可信区间，13.2 - 17.5）和3.9（95%可信区间，2.9 - 5.1）。经历创伤事件的通勤者与未经历创伤事件的通勤者在年龄、性别、安全措施和经验水平方面没有差异。
在1年的通勤期间，约20%的自行车通勤者经历了创伤事件，5%需要医疗护理。创伤事件与骑车人的人口统计学特征、安全措施或经验水平无关。这些结果表明，预防伤害应侧重于改善自行车通勤环境的安全性。
