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  • Title: Surveillance of trend and distribution of stroke mortality by subtype, age, gender, and geographic areas in Tianjin, China, 1999-2006.
    Author: Wang X, Jiang G, Choi BC, Wang D, Wu T, Pan Y, Boulton M.
    Journal: Int J Stroke; 2009 Jun; 4(3):169-74. PubMed ID: 19659816.
    Abstract:
    BACKGROUND: The purpose of this study was to analyze the epidemiological trend and distribution of stroke mortality in the city of Tianjin, China, in order to provide evidence for the prevention and control of stroke. METHODS: The study was based on 102 718 cases of stroke mortality in Tianjin between 1999 and 2006. The cause of death was coded according to the International Classification of Diseases into stroke subtypes. Standardized mortality rates were calculated for stroke and its subtypes, adjusted for age and gender using the year 2000 world standard population. The age, gender, and geographic distribution of stroke and subtype mortality were analyzed. chi2-tests were used to determine the statistical significance of differences in mortality trends. RESULTS: The stroke mortality rate in Tianjin declined from 133.52/100 000/year in 1999 to 102.52/100 000/year in 2006. The stroke mortality rate for males was higher than that for females. Stroke mortality rates increased with increasing age. The subtypes of stroke have changed considerably in Tianjin. Hemorrhagic was major in 1999-2001, while cerebral infarction attained the first rank and accounted for more than 50% of stroke mortality in 2002-2006. The most pronounced finding was that the proportion of ischemic stroke was 66.65% in the urban population and over 20% higher than that in the rural area. Stroke in the suburban area was mainly hemorrhagic stroke, up to 62.67%. CONCLUSIONS: There are significant differences in the distribution of stroke mortality by subtype, age, gender, and geographic areas in Tianjin, China. Various subtypes of stroke are associated with different risk factors and therefore require different public health prevention and control measures. This study provides pertinent information for formulation of measures for the prevention and control of stroke.
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