Table 2.
Diagnostic performances of dichotomized variables associated with endometriosis in the derivation sample N = 1685).
| Variables | Se (%) | Sp (%) | C index | OR [95%CI] | p |
|---|---|---|---|---|---|
| VAS pains scores | |||||
| VAS dysmenorrhea ≥6 | 75.6 [72.5–78.6] | 62.8 [59.5–66.0] | 0,71 | 5.2 [4.2–6.5] | <0.001 |
| VAS deep dyspareunia ≥3 | 67.5 [64.1- 70.7] | 62.4 [59.1–65.6] | 0,67 | 3.4 [2.8–4.2] | <0.001 |
| VAS GI symptoms ≥5 | 58.8 [55.2–65.2] | 91.7 [93.5–95.1] | 0,65 | 8.5 [6.3–11.6] | <0.001 |
| VAS urinary tract symptoms ≥1 | 10.5 [8.4–12.8] | 92.5 [90.6–94.2] | 0.60 | 6.5 [4.3–9.6] | <0.001 |
| Absence from school because of primary dysmenorrhea or loss of consciousness due to dysmenorrhea | 17.5 [14.9–20.3] | 95.3 [93.6–96.6] | 0,58 | 2.5 [2.0–3 ?1] | <0.001 |
| OCP for severe primary dysmenorrhea | 22.5 [19.6–25.6] | 91.9 [89.9–93.6] | 0,59 | 3.3 [2.4–4.4] | <0.001 |
| Rectorrhagia or hematuria | 17.5 [14.9–20.3] | 95.3[93.6–96.6] | 0,58 | 4.3 [3.0–6.1] | <0.001 |
| Birth weight < 2500 g | 6.25 [4.67–8.7] | 96.5 [95.1–97.6] | 0.52 | 1.8 [1.2–2.9] | 0.009 |
| Nulliparity | 82.4 [79.6–84.0] | 28.0 [25.1–31.1] | 0.57 | 1.8 [1.4–2.3] | <0.001 |
| Primary sterility | 26.3 [23.2–29.4] | 82.0 [79.3–84.5] | 0.56 | 1.6 [1.3–2.0] | <0.001 |
| BMI< 22 | 60.3 [56.8–63.7] | 55.4 [52.0–58.7] | 0.60 | 1.9 [1.5–2 .5] | <0.001 |
| Negative Rhesus | 10.5 [8.46–12.8] | 92.5 [90.6–94.2] | 0.53 | 1.5 [1.04–2.04] | 0.03 |
| Family history of endometriosis | 10.9 [8.8–13.2] | 97.9 [96.7–98.7] | 0.56 | 5.6 [3.3–9.2] | <0.001 |
| Short regular cycles (<28 days) | 9.7 [7.8–12.0] | 91.4[89.4–93.2] | 0.51 | 1.15 [0.83–1.60] | 0.20 |
VAS: Visual Analogic Scale, OCP: oral contraceptive pill, BMI: Body Mass Index, GI: gastro-intestinal, Se : sensitivity, Spe : specificity, OR: crude odd ratio.