Abstract
Health characteristics were compared among 1193 Japanese in Hiroshima, and 2306 Japanese-Americans in Hawaii. Japanese women experienced later menarche, earlier menopause, and a shorter interval between menarche and menopause than Japanese-Americans. Japanese men and women were shorter and lighter and the men bad lower body mass index than Japanese-Americans. Differences between populations were also found for the prevalence of artificial menopause, number of live births, lactation period, smoking, and alcohol consumption. Within one or both populations, significant trends with birth year were found for age at menarche, age at menopause, interval between menarche and menopause, lactation period, height, weight, and body mass index, suggesting the existence of cohort effects. Some of these trends may also reflect age-related changes. Environmental factors likely contribute to the differences in physique and reproductive factors, which may explain differences in frequency of osteoporosis, cardiovascular diseases, and cancer between the two populations.
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Fujiwara, S., Huang, C., Ross, P.D. et al. Differences in health characteristics between native Japanese and Japanese-Americans. Journal of Cross-Cultural Gerontology 14, 273–287 (1999). https://doi.org/10.1023/A:1006627908855
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DOI: https://doi.org/10.1023/A:1006627908855