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Age distribution and length of menstrual cycle of the study subjects
| Variables | Number of subjects (n=150), n (%) |
|---|---|
| Age at menarche (years) | |
| Average | 14.1 |
| Range | 13-18 |
| 13 | 28 (18.67) |
| 14 | 83 (55.33) |
| 15 | 23 (15.33) |
| 16 | 9 (6.0) |
| 17 | 5 (3.33) |
| 18 | 2 (1.33) |
| Menstrual cycle (days) | |
| 15-30 | 7 (4.67) |
| 30-45 | 97 (64.67) |
| 45-60 | 32 (21.33) |
| 60-75 | 9 (6.0) |
| 90-105 | 5 (3.33) |
