Waters W E, Campbell M J, Elwood P C
Br Med J (Clin Res Ed). 1983 Nov 12;287(6403):1442-3. doi: 10.1136/bmj.287.6403.1442.
A population study of 1310 women aged 45-64 years determined the prevalence of headache and migraine in the preceding year. To investigate the hypothesis that women with migraine had a higher mortality rate, these women were followed up nearly 12 years later. Unexpectedly, the mortality was found to be higher in women without headaches. Women with headaches and migraine had a relative risk of dying of 0.72 (95% confidence interval 0.52-1.00) compared with those without headaches.
一项针对1310名45至64岁女性的人群研究确定了前一年头痛和偏头痛的患病率。为了调查偏头痛女性死亡率更高这一假设，这些女性在近12年后接受了随访。出乎意料的是，发现无头痛女性的死亡率更高。与无头痛女性相比，有头痛和偏头痛的女性死亡的相对风险为0.72（95%置信区间0.52 - 1.00）。
