Menstrual diaries data
| All girls (n=40) | Girls with ovulatory pattern (n=33) | Girls with oligoanovulatory pattern (n=7) | |
| Age (years) | 15.1 (14.9–15.4) | 15.1 (14.3–15.4) | 15.0 (14.9–15.2) |
| Time since menarche (years) | 2.3 (1.9–3.3) | 2.3 (1.6–3.2) | 3.1 (2.1–5.2) |
| Body mass index (kg/m2)* | 23.3 (20.4–25.6) | 22.8 (20.1–24.4) | 25.8 (23.7–35.6) |
| Body mass index z-score* | 0.84 (0.13–1.28) | 0.69 (0.01–1.13) | 1.3 (1.0–2.3) |
| Number of days recorded | 159 (137.2–188.2) | 159.5 (140.3–188.3) | 154.5 (116.5–189.8) |
| Number of cycles per girl | 5 (4–7) | 5.5 (4.0–6.8) | 4.5 (4.0–7.3) |
| Minimal cycle length (days) | 24 (11.5–29) | 13.5 (24.5–29.0) | 18.5 (8.3–27.0) |
| Maximum cycle length (days) | 38.5 (35–48) | 37.5 (35.0–47.8) | 43.0 (37.8–53.3) |
| Average cycle length (days) | 32 (25–34.2) | 32.0 (25.0–34.8) | 30.0 (21.8–36.5) |
Data are median (IQR).
*p<0.05 between girls with ovulatory and oligoanovulatory patterns.