Table 1.
Clinical characteristics of the study population.
| Total (n = 240) | Controls (n = 87) | Endometriosis (n = 153) | |||||
|---|---|---|---|---|---|---|---|
| Total | (%) | n | (%) | n | (%) | p-Value | |
| Age | 240 | 35.0 ± 7.1 | 33.2 ± 6.7 | 0.048 † | |||
| Age 18–34.9 | 128 | 53.3 | 41 | 47.1 | 87 | 56.9 | 0.178 ‡ |
| Age 35–50 | 112 | 46.7 | 46 | 52.9 | 66 | 43.1 | |
| BMI | 240 | 25.0 ± 5.9 | 23.4 ± 4.5 | 0.019 † | |||
| BMI < 25 | 162 | 67.5 | 55 | 63.2 | 107 | 69.9 | 0.317 ‡ |
| BMI > 25 | 78 | 32.5 | 32 | 36.8 | 46 | 30.1 | |
| Cycle Phase | 212 | 78 | 134 | ||||
| proliferative | 110 | 51.9 | 34 | 43.6 | 76 | 56.7 | 0.087 ‡ |
| secretory | 102 | 48.1 | 44 | 56.4 | 58 | 43.3 | |
| na | 28 | 11.7 | 9 | 10.3 | 19 | 12.4 | |
| RAFS | |||||||
| low (RAFS I + II) | 68 | 47.6 | |||||
| high (RAFS III + IV) | 75 | 52.5 | |||||
| na | 10 | 6.5 | |||||
| Fertility Status | 141 | 57 | 84 | ||||
| fertile | 51 | 36.2 | 22 | 38.6 | 29 | 34.5 | 0.721 ‡ |
| infertile | 90 | 63.8 | 35 | 61.4 | 55 | 65.5 | |
| na | 99 | 41.3 | 30 | 34.5 | 69 | 45.1 | |
| Gravidity | 236 | 86 | 150 | ||||
| 0 | 125 | 53.0 | 33 | 38.4 | 92 | 61.3 | 7.33 × 10−4 ‡ |
| >0 | 111 | 47.0 | 53 | 61.6 | 58 | 38.7 | |
| na | 4 | 1.7 | 1 | 1.2 | 3 | 2.0 | |
| Parity | 233 | 86 | 147 | ||||
| 0 | 166 | 71.2 | 54 | 62.8 | 112 | 76.2 | 0.036 ‡ |
| >0 | 67 | 28.8 | 32 | 37.2 | 35 | 23.8 | |
| na | 7 | 2.9 | 1 | 1.2 | 6 | 3.9 | |
† t-test, ‡ Fisher’s exact test, age and BMI (body mass index) are presented as the mean ± SD; the other variables as presented as the number (%). Na, not assessed; RAFS, revised American Fertility Society Score. Statistically significant differences are highlighted.