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Table 2 Cumulative distribution of natural menopause by age group

From: Prevalence of premature ovarian insufficiency and its determinants in Iranian populations: Tehran lipid and glucose study

 

Menopause

 
 

No, n (%)

Yes, n (%)

Age group (years)

20–25

1180 (98.3%)

21 (1.7%)

25–30

955 (98.8%)

12 (1.2%)

30–35

928 (98.0%)

19 (2.0%)

35–40

663 (96.5%)

24 (3.5%)*

40–45

608 (75.4%)

198 (24.6%)

45–50

201 (35.5%)

365 (64.5%)

50–55

62 (11.1%)

497 (88.9%)

 + 55

8 (1.0%)

780 (99.0%)

  1. *Cumulative prevalence of primary ovarian insufficiency (POI) defined as menopause before age 40 years
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