Davey Smith G, Frankel S, Yarnell J
Department of Social Medicine, University of Bristol.
BMJ. 1997;315(7123):1641-4. doi: 10.1136/bmj.315.7123.1641.
To examine the relation between frequency of orgasm and mortality.
Cohort study with a 10 year follow up.
The town of Caerphilly, South Wales, and five adjacent villages.
918 men aged 45-59 at time of recruitment between 1979 and 1983.
All deaths and deaths from coronary heart disease.
Mortality risk was 50% lower in the group with high orgasmic frequency than in the group with low orgasmic frequency, with evidence of a dose-response relation across the groups. Age adjusted odds ratio for all cause mortality was 2.0 for the group with low frequency of orgasm (95% confidence interval 1.1 to 3.5, test for trend P = 0.02). With adjustment for risk factors this became 1.9 (1.0 to 3.4, test for trend P = 0.04). Death from coronary heart disease and from other causes showed similar associations with frequency of orgasm, although the gradient was most marked for deaths from coronary heart disease. Analysed in terms of actual frequency of orgasm, the odds ratio for total mortality associated with an increase in 100 orgasms per year was 0.64 (0.44 to 0.95).
Sexual activity seems to have a protective effect on men's health.
研究性高潮频率与死亡率之间的关系。
一项为期10年随访的队列研究。
南威尔士的卡菲利镇及五个相邻村庄。
1979年至1983年间招募的918名年龄在45至59岁之间的男性。
所有死亡病例以及冠心病死亡病例。
性高潮频率高的组的死亡风险比性高潮频率低的组低50%，且各分组间存在剂量反应关系。性高潮频率低的组全因死亡率的年龄调整比值比为2.0（95%置信区间为1.1至3.5，趋势检验P = 0.02）。在对风险因素进行调整后，该比值比变为1.9（1.0至3.4，趋势检验P = 0.04）。冠心病死亡和其他原因导致的死亡与性高潮频率呈现相似的关联，尽管冠心病死亡的梯度最为明显。按照性高潮的实际频率进行分析，每年性高潮次数每增加100次，总死亡率的比值比为0.64（0.44至0.95）。
性活动似乎对男性健康具有保护作用。
