Age at Menarche of Japanese and Bolivian Girls in a Pioneer Community of Eastern Lowland of Bolivia

概要

論文の詳細を見る
The age at menarche of both Japanese and Bolivians living in a colony of Japanese immigrants in eastern Bolivia was examined. Maximum likelihood estimation gave mean menarcheal ages of 13, 15±1.08 for Japanese girls and of 13.08±0.89 for Bolivian girls. The girls are further classified according to the fathers' occupation (Japanese-Agriculturist I, Agriculturist II, Non-Agriculturist: Bolivian-Self-Employed, Employed, Unknown), and the age at menarche of each group was also estimated. For Japanese girls, the difference in the menarcheal age between 'Agriculturist I' (13.28) and 'Agriculturist II' (13.19) was negligible. But 'Non-Agriculturist' showed remarkably younger age at menarche as 11.70. For Bolivian girls, there was clear difference in the menarcheal age between 'Self-Employed'(12.72) and 'Employed' (13.99).
日本人類学会の論文