Hansen B S, Marquardsen J
Stroke. 1977 Nov-Dec;8(6):663-5. doi: 10.1161/01.str.8.6.663.
Since 1971, stroke registers in several countries have been cooperating in a study of stroke epidemiology, initiated by WHO. One of the registers covers the population of Frederiksberg, Copenhagen. During the first two years of registration strokes were recorded in 556 Frederiksberg citizens. A certain diagnosis of cerebral hemorrhage--verified by angiography, spinal fluid examination, or autopsy--was made in 10% of the patients; subarachnoid hemorrhage was demonstrated in only 2%; most of the remaining patients probably had cerebral infarction. The overall annual incidence of stroke, when adjusted for age for the Danish population, was 1.9 per 1,000 for males, and 1.6 per 1,000 for females. For every type of stroke, except subarachnoid hemorrhage, the incidence increased markedly with age. The age-specific stroke incidence rates found in the present investigation are much lower than those demonstrated by Aho in a community-based study in Finland. In view of the strict comparability of the two studies, real differences in the risk of stroke may exist between the two communities.
自1971年以来，多个国家的中风登记机构一直在合作开展一项由世界卫生组织发起的中风流行病学研究。其中一个登记机构涵盖了哥本哈根腓特烈斯贝格的人口。在登记的头两年里，有556名腓特烈斯贝格市民记录了中风情况。通过血管造影、脑脊液检查或尸检确诊为脑出血的患者占10%；仅2%的患者显示为蛛网膜下腔出血；其余大多数患者可能患有脑梗死。按照丹麦人口的年龄进行调整后，中风的总体年发病率男性为每1000人中有1.9例，女性为每1000人中有1.6例。除蛛网膜下腔出血外，每种类型的中风发病率均随年龄显著增加。本次调查中发现的特定年龄中风发病率远低于阿霍在芬兰进行的一项基于社区的研究中所显示的发病率。鉴于两项研究的严格可比性，两个社区之间可能存在中风风险的实际差异。
