Demographic and clinical characteristics of the two study groups
| Characteristic | Endometriosis group (n=250) | Healthy women group (n=250) | p |
|---|---|---|---|
| Age (mean±SD) | 34±5 | 32±6 | 0.23 |
| Body mass index (mean±SD) | 21±3 | 22±4 | 0.43 |
| Hormonal contraception [n (%)] | 250 (100) | 243 (97) | 0.76 |
| Parity ≥1 [n (%)] | 43 (17) | 69 (27) | 0.016 |
SD, standard deviation.