Faculty of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
North Greenville University Tigerville, South Carolina.
J Stroke Cerebrovasc Dis. 2015 Apr;24(4):771-7. doi: 10.1016/j.jstrokecerebrovasdis.2014.11.004. Epub 2015 Feb 11.
The epidemiology of stroke in sub-Saharan African populations and variation of subtypes between communities are not well understood. Our aim was to ascertain prospectively the incidence of first-ever stroke and ischemic stroke subtypes in an urban city population of Southwestern Nigeria.
A community-based stroke registry was set up to enroll hospitalized and nonhospitalized first-ever stroke cases at all health care facilities located in the assigned community. The study was conducted between November 1, 2010, and October 31, 2011, in Akure North and South Local Government Areas of Ondo State, Southwestern Nigeria.
We identified 298 incidents of strokes in patients presenting for the first time ever. Pathologic diagnosis was confirmed in 75% of the cases. Adjusted age-standardized incidence rate was 60.67 per 100,000 per year after adjustment to the World Health Organization World Population. Incidence of cerebral infarction and intracerebral hemorrhage increased with age in both men and women.
The incidence of stroke in our population-based study ranks low compared with high-income countries. However, when incidence rates were compared by pathologic type, our rates for intracerebral hemorrhage and that of subarachnoid hemorrhage are comparable with those of high-income countries.
撒哈拉以南非洲人群的中风流行病学以及各社区之间亚型的变化情况尚不清楚。我们的目的是在尼日利亚西南部的一个城市人群中前瞻性地确定首次中风和缺血性中风亚型的发病率。
建立了一个以社区为基础的中风登记处，以招募所有位于指定社区的医疗保健机构中住院和非住院的首次中风病例。该研究于 2010 年 11 月 1 日至 2011 年 10 月 31 日在尼日利亚西南部翁多州阿克雷市北和南地方政府区进行。
我们在首次出现的患者中确定了 298 例中风事件。在 75%的病例中确认了病理诊断。经过对世界卫生组织世界人口的调整后，调整后的年龄标准化发病率为每 10 万人每年 60.67 例。男性和女性的脑梗死和脑出血发病率均随年龄增长而增加。
与高收入国家相比，我们的人群研究中的中风发病率较低。但是，当按病理类型比较发病率时，我们的脑出血和蛛网膜下腔出血的发病率与高收入国家相当。
