[Analysis of geographical differences in the seasonal variation of mean birth weight in Japan (1974-1983)].

Abstract

Geographical differences in the seasonal variation in mean birth weight (MBW) were examined by a traditional time series analysis based on the birth data of 47 different prefectures in Japan for the period from January 1974 to December 1983. The general pattern on the seasonality in MBW has two peaks in spring and autumn, and two troughs in summer and… (More)

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