Mortality amongst participants in Vasaloppet:: a classical long-distance ski race in Sweden
Mortality amongst participants in Vasaloppet:: a classical long-distance ski race in Sweden
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DOI：
10.1046/j.1365-2796.2003.01122.x
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发表时间：
2003-03-01
影响因子：
11.1
通讯作者：
Brobert, GP
中科院分区：
文献类型：
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作者：
Farahmand, BY;Ahlbom, A;Brobert, GP
Objective.这项研究的目的是评估瓦萨洛佩特周期间参加长距离滑雪比赛的参与者的死亡率。我们考虑了男子90公里和女子90或30公里的比赛。这些比赛的绝大多数参与者都不是在精英水平上竞争。然而，为了成功完成比赛，他们必须在很长一段时间内进行定期的体能训练。这项队列研究包括49219名男性和24403名女性，他们在1989-1998年期间参加了任何一场比赛。所有受试者均在国家死亡原因登记处接受随访，直至1999年12月31日。我们计算了校正年龄和日历年的标准化死亡率比（SMR）。总体而言，发生了410例死亡，而预期为850.6例，SMR为0.48 [95%置信区间（CI）0.44-0.53]。在男性和女性的所有年龄组以及按完成时间和比赛次数分类后的所有组中，均发现SMRs较低。最低的SMR在老年参与者和那些参加过几场比赛的人中发现。在所有主要诊断组中观察到死亡率下降，即癌症（SMR = 0.61; 95% CI 0.52-0.71）、循环系统疾病（SMR = 0.43; 95% CI 0.35-0.51）和损伤和中毒（SMR =0.73; 95% CI 0.60-0.89）。肺癌的SMR为0.22，但即使排除肺癌后，全癌死亡率也很低（SMR = 0.72; 95%CI 0.59-0.86）。我们的结论是，参加长距离滑雪比赛，这需要长期定期的体育训练，有较低的死亡率。这在多大程度上是由于身体活动、相关的生活方式因素、遗传或选择偏差造成的，还有待评估。
Objective. The aim of this study was to assess mortality amongst participants in long-distance ski races during the Vasaloppet week. We considered the 90 km races for men and 90 or 30 km for women. The vast majority of the participants in these races are not competing on the elite level. It is assumed, however, that they have to undergo regular physical training during a long period of time in order to successfully finish the race.Design. The cohort study consisted of 49 219 men and 24 403 women, who participated in any of the races during 1989-1998. All subjects were followed up in the National-Cause-of-Death-Register until 31 December 1999. We computed the standardized mortality ratios (SMRs) adjusting for age and calendar year.Results. Overall, 410 deaths occurred, compared with 850.6 expected, yielding an SMR of 0.48 [95% confidence interval (CI) 0.44-0.53]. Low SMRs were found in all age groups in both men and women and in all groups after categorization by finishing time and number of races. The lowest SMRs were found amongst older participants and in those who participated in several races. A decreased mortality was observed in all major diagnostic groups, namely cancers (SMR = 0.61; 95% CI 0.52-0.71), diseases of the circulatory system (SMR = 0.43; 95% CI 0.35-0.51), and injuries and poisoning (SMR =0.73; 95% CI 0.60-0.89). For lung cancer the SMR was 0.22, but even after exclusion of lung cancer the all-cancer mortality was low (SMR = 0.72; 95% CI 0.59-0.86).Conclusions. We conclude that participants in long-distance skiing races, which demand prolonged regular physical training, have low mortality. The extent to which this is due to physical activity, related lifestyle factors, genetics or selection bias is yet to be assessed.