中文摘要：

目的 调查北京地区中老年人群脑卒中及其危险因素。方法 2011年11月至2012年8月采用面对面方式，在北京市石景山区的3个社区进行以社区人群为基础的横断面调查。共调查≥40岁居民19 145（男性6 732，女性12 413）人。采用标准调查问卷，根据已建立的标准方法对所有受试者进行体格检查。对于无糖尿病病史的调查对象行75 g口服葡萄糖耐量试验，对于既往有糖尿病病史者行标准馒头餐试验。测定FPG、TG、TC、HDL-C、LDL-C、糖化血红蛋白（HbA1c）和糖负荷后2 h血糖。结果 调查地区男性中老年人群脑卒中患病率为4.8%，女性为2.5%，总患病率为3.3%。根据2010年北京市人口普查，标化患病率分别为3.9%、2.5%和3.2%。与脑卒中发病的相关危险因素中，男性吸烟率为45.2%，超重/肥胖、高血压、高血糖、血脂异常患病率分别为60.4%、52.7%、51.5%和64.6%；在女性分别为2.2%、55.1%、42.2%、45.6%和67.4%。结论 北京地区中老年人群脑卒中患病率为男性高于女性，男性吸烟率明显高于女性，男性超重/肥胖、高血压和高血糖的患病率均高于女性。

英文摘要：

Objective To investigate the prevalence of stroke and risk factors for stroke in middle-aged and elderly population in Beijing. Methods A population based cross sectional survey was conducted among 19 145 subjects （males： 6 732; females： 12 413） aged ≥40 years from 3 communities in Shijingshan district of Beijing from November 2011 to August 2012. The information of subjects＇ demographic characteristics, lifestyle and histories of diabetes mellitus, hypertension and dyslipidemia were collected. The oral glucose tolerance test or a standard meal test was performed. Non-fatal stroke was reported by the subjects. Blood specimen were collected for detecting fasting blood glucose, TC, TG, HDL-C, LDL-C, HbA1c and 2-h blood glucose. Results The overall prevalence of stroke was 3.3%, and the gender specific prevalence was 4.8% in males and 2.5% in females. The standardized prevalence based on 2010 population census data was 3.2%, 2.5% and 3.9%, respectively. The overall prevalence of smoking, overweight or obesity, hypertension, hyperglycemia and dyslipidemia was 45.2%, 60.4%, 52.7%, 51.5%, and 64.6% in males, respectively, and 2.2%, 55.1%, 42.2%, 45.6%, 67.4% in females, respectively. Conclusion The prevalence of stroke was higher in males than in females in the middle aged and elderly people in Beijing. The smoking rate was significantly higher in males than in females. The prevalence of overweight or obesity, hypertension, and hyperglycemia were all higher in males than in females.