Table 1.
Baseline characteristics of patients with oligo/amenorrhea and women with regular cycles.
| Eumenorrhea | Oligo/Amenorrhea | Total | P-value | |
|---|---|---|---|---|
| No (%) | 126 (67.4%) | 61 (32.7%) | 187 (100%) | |
| Ethnicity (%) | ||||
| Asian | 33 (26.2) | 20 (32.8) | 53 (28.3) | |
| Black | 7 (5.55) | 3 (4.92) | 10 (5.35) | |
| White | 75 (59.6) | 33 (54.1) | 108 (57.8) | |
| Other | 12 (9.52) | 4 (6.56) | 16 (8.56) | |
| Age (years) | 31.0 (29.0, 33.0) | 30.0 (28.0, 32.9) | 31.0 (28.4, 33.0) | 0.34 |
| Age at menarche (years) | 12.2 (11.5, 13.2) | 13.0 (11.3, 13.0) | 12.4 (11.3, 14.0) | 0.28 |
| BMI (kg/m2) | 23.3 (21.7, 23.7) | 25.0 (22.3, 28.4) | 23.7 (21.8, 26.9) | 0.02 |
| Total antral follicle count | 29 (24,37) | 38 (28, 50) | 30 (25,44) | <0.001 |
| Ovarian volume (ml) | 6.0 (2.5, 10.2) | 6.9 (3.2, 12) | 8.3 (6.1, 10.5) | 0.01 |
| Anti-Mullerian hormone (pmol/L) | 34.6 (20.7, 52.2) | 65.8 (45.8, 69.0) | 45.0 (25.7, 69) | <0.001 |
| Androstenedione (nmol/L)* | 4.8 (3.8, 6.5) | 4.0 (3.2, 5.5) | 4.4 (3.6, 6.2) | 0.06 |
| Testosterone (nmol/L) | 1.2 (0.9, 1.6) | 1.4 (1.1, 1.8) | 1.3 (1, 1.6) | 0.03 |
| Dehydroepiandrostenedione (DHEA) (μmol/L)** | 5.4 (4.2, 9.4) | 5.5 (4.4, 6.9) | 5.5 (4.3, 7.0) | 0.94 |
| Free androgen index (FAI) | 2.1% (1.5%, 4.0%) | 3.0% (1.9%, 5.1%) | 2.5% (1.6%, 4.5%) | 0.02 |
Median and interquartile range (IQR) are presented. Groups were compared by Mann-Whitney U test.
*
Data was available for 35 eumenorrheic women and 40 oligo/amenorrheic women.
**
Data was available for 29 eumenorrheic women and 35 oligo/amenorrheic women.