トクシマケン ニオケル ヒョウジュンカ シボウヒ : 20 ネンカン ノ ネンジ スイイ オヨビ ホケンジョ カンナイベツ ノ ブンセキ
Analysis of standardized mortality ratio in Tokushima Prefecture, Japan : time-related change during 20 years and administrative area-specific analysis
日吉, 峰麗 徳島大学大学院ヘルスバイオサイエンス研究部社会環境衛生学講座予防医学分野
佐野, 雄二 徳島県保健福祉部健康増進課
standardized mortality ratio
To elucidate the mortality characteristics of Tokushima Prefecture, the authors analyzed the time-related change in the standardized mortality ratio （SMR） of cause-specific death and organ-specific cancer death during 1983-2002, and administrative area-specific SMR during 1993-1998 and 1999-2002. The gender-and 5-year-age-specific and cause-specific death rates in the entire Japanese population were used as the reference mortality, and the population of sex-and-5-year-agespecific category in the census year （1985, 1990, 1995 and 2000） was used as the population of Tokushima Prefecture. Interval estimation of SMR was performed by the exact method, assuming that the number of deaths followed the Poisson distribution. In the analysis of each year from 1983 to 2002, the SMR of diabetes mellitus markedly increased from the mid 1990’s, suggesting the changes in the environmental factors. The SMR of bronchitis, emphysema and asthma was constantly high during the 20 years. In the administrative area-specific analysis, the SMR of diabetes was high in Tokushima and Naruto for both men and women. With regard to malignant neoplasms, the SMR of esophageal cancer was constantly low, while that of liver cancer was constantly high over the 20 years. The SMR of esophageal cancer was low among men in Tokushima and Anan, and among women in Kamojima, while that of liver cancer was high among men and women in Tokushima and among men in Anan. These characteristics were consistent over the recent 10 years, suggesting the involvement of area-specific factors.
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