| 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 |
|
|
|
|
|
|
|