府県別周産期死亡の季節集積性について

概要

論文の詳細を見る
An analysis of aggregation month of perinatal death for each prefecture was down in 1971 with the following results.1) The late foetal death by prefecture shows a marked trend to aggregate during Junuary to April, and the early neonatal deaths mainly aggregate from July to October for east Japan, but it shows a tendency to aggregate from February to April in west Japan. So it seems that the cold weather in winter becomes a cause of the perinatal deaths especially in the late foetal deaths, and the hot weather in summer mainly influences to the early neonatal deaths.2) The early neonatal death rate seems to increase corresponding to the high rate of the birth in home for each prefecture, but this tendency dose not clarify for the late foetal deaths.3) Eighty-five percent of the early neonatal deaths is considered to be the higher death rate group which is almost dead within 3 days after birth by the force of mortality of 1.11, and the other fifteen percent shows the moderate death rate having the force of mortality of 0.17. So, it seems that the mortality rate within 3 days after birth may become an index for neonatal deaths.
日本衛生学会の論文