Table 1. Clinical and menstrual characteristics in women with or without ovarian endometrioma.
| Characteristics | Ovarian endometrioma (n=46) | Benign ovarian tumors (n=49) | P | |
|---|---|---|---|---|
| Age (yr) | 30.5 (29.2–31.8) | 29 (27.5–30.4) | NS | |
| Married | 14 (30.4) | 16 (32.7) | NS | |
| Parous | 10 (22) | 11 (22) | NS | |
| Body mass index (kg/m2) | 20.9 (20.1–21.6) | 22.1 (21.3–23.0) | 0.031 | |
| Preoperative hemoglobin (g/dL) | 12.7 (12.4–13.0) | 13.3 (12.9–13.7) | 0.012 | |
| Preoperative hemoglobin <10 g/dL | 0 | 2 (4) | NS | |
| Pain score | 4 (3.5–4.4) | 3 (2.5–3.5) | 0.005 | |
| Menstrual amount by PBAC | 183 (155–211) | 165 (133–197) | NS | |
| PBAC score | NS | |||
| ≥100 | 33 (72) | 35 (71) | ||
| ≥130 | 29 (63) | 30 (61) | ||
| ≥160 | 23 (50) | 19 (39) | ||
| Menstrual duration (day) | 6 (6–7) | 6 (5–6) | NS | |
| Menstrual cycle | NS | |||
| Regular | 40 (87) | 36 (73) | ||
| Irregular | 6 (13) | 14 (27) | ||
| Cycle length in women with regular cycle (day) | 29.0 (28–30) | 29.2 (28–30) | NS | |
Values are presented as median (95% confidence interval) or number (%).NS, not significant; PBAC, pictorial blood loss assessment chart.