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Variation for characteristics of human ontogenesis and aging (women in the United States)
| Measure | Mean age (SD), years | CV, % | Source |
|---|---|---|---|
| Age at menarche | 12.9 (1.6) | 12.4 | MIDUS |
| Age at natural menopause | 49.7 (5.2) | 10.5 | MIDUS |
| Age at death | 78.7 (16.1) | 20.5 | 1995 life table for the United States |
