Center for Injury Research and Policy, The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio 43205, USA.
Am J Sports Med. 2011 Feb;39(2):404-9. doi: 10.1177/0363546510383478. Epub 2010 Nov 12.
Injury research on mountain biking has been mostly limited to examining professional riders and off-road biking. Mountain bikes represent the largest segment of bike sales in the United States. Recreational mountain bike use is popular and understudied.
To describe the scope, distribution, and trends of mountain bike-related injuries treated in US emergency departments.
Descriptive epidemiologic study.
A retrospective analysis was conducted with data from the National Electronic Injury Surveillance System of the US Consumer Product Safety Commission for patients aged ≥ 8 years from 1994 through 2007. Sample weights provided by the system were used to calculate national estimates of mountain bike-related injuries based on 4624 cases. Bivariate comparisons between categorical variables were assessed with injury proportion ratios and 95% confidence intervals.
Nationwide, an estimated 217 433 patients were treated for mountain bike-related injuries in US emergency departments from 1994 to 2007, an average of 15 531 injuries per year. The annual number of injuries decreased 56%, from a high of 23 177 in 1995 to 10 267 in 2007 (P < .001). The most common injuries were upper extremity fractures (10.6%) and shoulder fractures (8.3%). Patients aged 14 to 19 years sustained a greater proportion of traumatic brain injuries (8.4%) than did patients aged 8 to 13 years and ≥ 20 years combined (4.3%). A greater proportion of female riders (6.1%) than male riders (4.5%) were hospitalized.
Mountain bike-related injuries decreased from 1994 to 2007. Upper extremity fractures were the most common injury. Girls and women may be more likely than boys and men to sustain more severe injuries requiring hospitalization. Despite the decline over the past decade, more can be done to improve safety and reduce injuries in this popular recreational activity.
山地自行车运动的损伤研究主要局限于检查专业骑手和越野自行车。山地自行车在美国的自行车销售中占最大份额。休闲山地自行车的使用很普遍，但研究不足。
描述美国急诊部门治疗的与山地自行车相关的损伤的范围、分布和趋势。
描述性流行病学研究。
对美国消费品安全委员会国家电子伤害监测系统从 1994 年至 2007 年的数据进行回顾性分析，研究对象为年龄≥8 岁的患者。系统提供的样本权重用于根据 4624 例病例计算全国与山地自行车相关的损伤估计值。使用损伤比例比和 95%置信区间对分类变量之间的双变量比较进行评估。
1994 年至 2007 年，全美约有 217433 名患者因山地自行车相关损伤在急诊部门接受治疗，平均每年 15531 例。每年的损伤数量减少了 56%，从 1995 年的高峰 23177 例降至 2007 年的 10267 例（P<.001）。最常见的损伤是上肢骨折（10.6%）和肩部骨折（8.3%）。14 至 19 岁的患者发生创伤性脑损伤的比例（8.4%）高于 8 至 13 岁和≥20 岁患者的总和（4.3%）。女性骑手（6.1%）比男性骑手（4.5%）更有可能住院。
1994 年至 2007 年，与山地自行车相关的损伤数量有所减少。上肢骨折是最常见的损伤。女孩和女性可能比男孩和男性更容易遭受更严重的损伤，需要住院治疗。尽管在过去十年中有所下降，但在这项流行的娱乐活动中，还有更多的工作可以提高安全性和减少损伤。
