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Mean age and duration of menopause of the two groups.
| Groups | Mean age (SD) (years) | Range (years) | Mean duration of menopause (SD) (years) | Range (years) |
|---|---|---|---|---|
| PM + OD | 61.16 ± 10.36 | 45–82 | 15.88 ± 9.79 | 3–37 |
| PM − OD | 58.48 ± 7.86 | 46–76 | 11.36 ± 7.04 | 2–27 |
