D'Alessandro R, Gamberini G, Benassi G, Morganti G, Cortelli P, Lugaresi E
Cephalalgia. 1986 Sep;6(3):159-62. doi: 10.1046/j.1468-2982.1986.0603159.x.
The prevalence of cluster headache (CH) in the Republic of San Marino (21,792 inhabitants; 10,893 men and 10,899 women) was studied, reviewing the past 15 years' medical records of neurological, ophthalmological, and otorhinolaryngological services. Further cases were searched for by means of a letter sent to each inhabitant. Control of the case collection method was performed on a random sample of 1314 inhabitants over 7 years, interviewed for possible past or present cluster headache. We found 15 cases of CH (14 men, 1 woman), for an estimated prevalence ratio of 69 cases per 100,000 population. No previous reports have been published on the prevalence of CH in the general population.
我们对圣马力诺共和国（21,792名居民，其中男性10,893名，女性10,899名）丛集性头痛（CH）的患病率进行了研究，回顾了过去15年神经科、眼科和耳鼻喉科服务的医疗记录。通过向每位居民发送信件的方式进一步寻找病例。对1314名7岁以上居民进行了随机抽样，询问他们过去或现在是否可能患有丛集性头痛，以此来控制病例收集方法。我们发现了15例丛集性头痛病例（14名男性，1名女性），估计患病率为每10万人中有69例。此前尚未有关于普通人群中丛集性头痛患病率的报道。
