关键词: 卒中; 患病率; 危险因素

Abstract:

Objective To investigate the prevalence of stroke of middle-aged and elderly aged population in urban-rural area and the urban-rural distribution characteristics in Qinghai and further discuss the risk factors of stroke. Methods This research adopted the method of cluster sampling and developed investigation in prevalence and high risk factor of stroke among population aged above 40 years old in Xining (city level) Zhongzhuang community and Minhe (county level) Guanting town in Qinghai province. Questionaire interview, physical examination, blood test, transcranial Doppler sonography (TCD), Carotid artery ultrasound examination and the upper head image examination were made. Univariate and multivariate Logistic regressions were applied for analyzing risk factors of stroke. Results A total of 4100 people aged above 40 years old were screened. Among which, there were 314 cases of stroke and the total morbidity of stroke was 8%, (314/4100). The morbidity of stroke in urban was obviously higher than that in rural area (10.33% vs 4.85%, P =0.007). The male morbidity was higher than female in urban area (12.21% vs 8.00%, P =0.026). Multivariate Logistic regression model analysis showed that older age and hypertension were risk factors for stroke of the study population. The risk factor of urban residents included older age, hypertension and hyperlipidemia; and the risk factor of rural residents was hypertension. The protective factor was physical exercise. Conclusion The morbidity of stroke in urban and rural community areas of Qinghai province is relatively higher. However, the risk factors in urban and rural area differ.

Key words: Stroke; Morbidity; Risk factors