Table 1.
Comparison of the general characteristics of controls and cases of endometriosis.
| Endometriosis (n = 167) | Controls (n = 190) | P | |
|---|---|---|---|
| Mean (SD) | Mean (SD) | ||
| Age (years) | 33.5 ± 4.8 | 32.9 ± 4.2 | 0.277 |
| BMI (kg/m2) | 21.9 ± 3.1 | 22.2 ± 3.2 | 0.405 |
| Age at menarche (years) | 11.9 ± 1.5 | 12.2 ± 1.4 | 0.148 |
| Percentage (%) | Percentage (%) | ||
| Dysmenorrhea | 67.0 (112/167) | 37.4 (71/190) | 0.000 |
| Chronic pelvic pain | 27.5 (46/167) | 13.7 (26/190) | 0.000 |
| Deep dyspareunia | 4.8 (8/167) | 1.1 (2/190) | 0.070 |
| Migraine | 29.9 (50/167) | 12.1 (23/190) | 0.000 |
| Family history of migraine | 10.8 (18/167) | 5.8 (11/190) | 0.085 |
| Adenomyosis | 29.3 (49/167) | 0 | – |
| Isolated diffuse | 46.9 (23/49) | – | – |
| Isolated focal | 22.4 (11/49) | – | – |
| Associated diffuse and focal | 30.6 (15/49) | – | – |
| Main indication for surgery | |||
| Infertility | 34.1 (57/167) | 40.0 (76/190) | 0.253 |
| Pelvic pain | 39.5 (66/167) | 6.3 (12/190) | 0.000 |
| Ovarian cysts | 41.9 (70/167) | 18.9 (36/190) | 0.000 |
| Uterine leiomyomas | 13.8 (23/167) | 28.4 (54/190) | 0.001 |
Continuous variables were compared using Student’s t-test, categorical variables were compared with x2 tests.
SD, standard deviation; BMI, Body mass index.