Table 2 Distribution of interval from menarche to onset of regular menstrual cycles by age at menarche
age at menarche | |||
|---|---|---|---|
≤10 | 11-14 | ≥15 | |
n (%) | n (%) | n (%) | |
time to onset of regular menstrual cycles | |||
<1 year | 439 (18) | 7797 (19) | 558 (17) |
1-2 years | 739 (31) | 12356 (30) | 879 (27) |
3-4 years | 558 (23) | 8875 (22) | 640 (19) |
≥5 years | 414 (17) | 7618 (19) | 681 (21) |
Never | 225 (9) | 4388 (11) | 540 (16) |