| Variable | Training cohort (n = 172) | Validation cohort (n = 50) | χ2 | P | Variable | Training cohort (n = 172) | validation cohort (n = 50) | χ2 | P |
| Treatment |
|
|
|
| Marital status |
|
|
|
|
| conservative (0) | 136 | 41 | 0.206 | 0.65 | unmarried (0) | 108 | 28 | 0.753 | 0.386 |
| surgical (1) | 36 | 9 |
|
| married (1) | 64 | 22 |
|
|
| Age (y) |
|
|
|
| Menstrual regularity |
|
|
|
|
| <35 (0) | 164 | 49 | 0.184 | 0.403 | yes (0) | 165 | 48 | 0 | 1 |
| ≥35 (1) | 8 | 1 |
|
| no (1) | 7 | 2 |
|
|
| BMI (kg/m2) |
|
|
|
| NRS Pain level (points) |
|
|
|
|
| <18.5 (0) | 98 | 27 |
| 0.622 | 1 - 3 (1) | 111 | 34 | 0.629 | 0.719 |
| 18.5 - 24 (1) | 73 | 22 |
|
| 4 - 6 (2) | 47 | 11 |
|
|
| >24 (2) | 1 | 1 |
|
| 7 - 10 (3) | 14 | 5 |
|
|
| Predisposing factors |
|
|
|
| Cervical lifting pain |
|
|
|
|
| other (0) | 67 | 18 | 0.143 | 0.705 | no (0) | 107 | 27 | 1.091 | 0.296 |
| sex (1) | 105 | 32 |
|
| yes (1) | 65 | 23 |
|
|
| Smoking |
|
|
|
| Pain site |
|
|
|
|
| no (0) | 155 | 40 | 3.711 | 0.054 | lower abdomen (0) | 95 | 30 | 0.358 | 0.55 |
| yes (1) | 17 | 10 |
|
| whole abdomen (1) | 77 | 20 |
|
|
| History of pelvic surgery |
|
|
|
| Abdominal muscle tension |
|
|
|
|
| no (0) | 166 | 48 | 0 | 1 | no (0) | 91 | 23 | 0.74 | 0.39 |
| yes (1) | 6 | 2 |
|
| yes (1) | 81 | 27 |
|
|
| Alcohol |
|
|
|
| International standardized ratio |
|
|
|
|
| no (0) | 159 | 49 | 1.194 | 0.275 | <1.2 (0) | 167 | 49 |
| 1 |
| yes (1) | 13 | 1 |
|
| ≥1.2 (1) | 5 | 1 |
|
|
| Shock index |
|
|
|
| C-reactive protein (mg/L) |
|
|
|
|
| 0 - 1 (0) | 171 | 49 |
| 0.401 | <5 (0) | 47 | 10 | 1.089 | 0.297 |
| 1 - 2 (1) | 1 | 1 |
|
| ≥5 (1) | 125 | 40 |
|
|
| Hemoglobin (g/L) |
|
|
|
| Adnexal tumors (cm) |
|
|
|
|
| ≥12 (0) | 120 | 39 | 1.292 | 0.256 | <4 (0) | 106 | 35 | 1.172 | 0.279 |
| <12 (1) | 52 | 11 |
|
| ≥4 (1) | 66 | 15 |
|
|
| Leukocyte (109/L) |
|
|
|
| Pelvic effusion depth (cm) |
|
|
|
|
| <10 (0) | 94 | 28 | 0.028 | 0.866 | <3 (0) | 123 | 39 | 0.827 | 0.363 |
| ≥10 (1) | 78 | 22 |
|
| ≥3 (1) | 49 | 11 |
|
|
| Platelets (109/L) |
|
|
|
|
|
|
|
|
|
| <100 (0) | 166 | 49 | 0.005 | 0.944 |
|
|
|
|
|
| ≥100 (1) | 6 | 1 |
|
|
|
|
|
|
|