Time-related changes in the mortality from cerebrovascular diseases in Hisayama, Japan: Comparison with the nation-wide mortality stasistics.:Comparison with the nation-wide mortality stasistics
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概要
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Time-related changes in cerebrovascular (stroke) mortality were studied based on data from both death certificate and autopsy examination in Hisayama town, Fukuoka, Japan. From 1962 to 1985, 139 men and 132 women were certified to death by stroke, of which 46 men and 25 women were diagnosed as intracerebral hemorrhage (ICH), while 43 men and 53 women as cerebral infarction (CI). Mortality figures from type-specific strokes (ICH or CI) obtained from death-certificate data were corrected by the proportion of congruity or incongruity between deathcertificate and autopsy diagnoses (estimated death rate). Statistics based on death certificates revealed that the mortalities from all types of stroke for both sexes and from ICH for men decreased, showing a similar pattern of those from the nation-wide statistics during the observation period. The mortality from CI for both sexes turned from increase to decrease between 1962 and 1974, being also similar to figures of the whole Japan. However, its figures from 1962 to 1969 were assumed to be underestimated compared to those calculated by autopsy data. Meanwhile, the mortality from ICH for women tended to decrease during the period, although the rate was markedly lower than that of the nation-wide figures. These were also verified by estimated death rates. Analyzing the results from autopsy studies, nation-wide mortality statistics of ICH for women were considered to be partially biased by misdiagnosis on subarachnoid hemorrhage. On the other hand, an increasing trend of CI for both sexes during the period since 1962 to 1969 was partially resulted from the fact that more CIs could be selected as the cause of death on the death certificate than those actually occurred.
- 一般社団法人 日本脳卒中学会の論文
一般社団法人 日本脳卒中学会 | 論文
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