On the average, menarche occurred at an earlier age in Hall Beach premenopausal mothers (13.4 ± 0.2 yr) than in Igloolik pre- menopausal mothers (14.3 ± 0.2 yr) (t = 2.394, p<.05). In addition, this same group of Hall Beach mothers had their first baby at an earlier age (16.9 ± 0.3 yr) than did their counterparts in Igloolik (17. 9 ± 0.3 yr) (t = 2.554, p<.025). Age at menopause and duration of reproductive period. The mean age at menopause was 52.3 ± 1.0 yr for the 11 naturally postreproductive women in Igloolik for whom data were available and 49.3 ± 1.7 yr for the four naturally postreproductive women in Hall Beach. As the difference between these means was not statistically significant, the two groups were combined. The mean age at menopause was 51.5 ± 0.9 yr for all naturally postreproductive mothers. The period from menarche to natural menopause ranged from 28 to 43 years with a mean of 36.3 ± 1.9 yr for the eight Igloolik mothers for whom these data were available.
Fertility and other Demographic Aspects of the Canadian Eskimo Communities of Igloolik and Hall Beach
Phyllis J. McAlpine and Nancy E. Simpson
Human Biology
,
Vol. 48, No. 1 (February 1976), pp. 113-138
Article Stable URL: http://www.jstor.org/stable/41464386
No comments:
Post a Comment