長野市及びその近傍町村の昭和25年の満月見出生時体重について
1951 年 18 巻 1 号 p. 9-13,A2
詳細
1951 年 18 巻 1 号 p. 9-13,A2
The author observed birth-weight of 5463, babies born in the year 1950 in Nagano City and surrounding villages.
He recognized difference of the weight between male and female babies. The weight of boys surpassed that of girls. He confirmed also that the weight of newborns in villages was lighter during the farming season, April to Se2tember. He compared newborns from mothers of different ages and recognized babies of older mothers was heavier than those of younger mothers. He compared also the weight as referred to the number of times of delivery, and recognized newborns of mothers who had many children was heavier than those of mothers who had no or few children. Also he confirmed newborns of older mothers were lighter than that of younger mothers if the number of times of delivery was the same.
The author suggested a theory that the uterus of the mothers who had experienced _ many deliveries can somehow support heavier weight of fetus than the uterus of mothers who had experienced no or few deliveries. He also considered the uterus of older mothers can only support lighter weight of fetus than the uterus of younger mothers if the number of times of delivery was the same.
