Table 1 Patient demographics and preoperative characteristics.
From: Predictive nomogram of ultrasound indicators for the termination outcome of caesarean scar pregnancy
Characteristics | Internal cohort (n = 241) | External cohort (n = 120) | ||||
|---|---|---|---|---|---|---|
Case group (n = 80) | Control group (n = 161) | P value | Case group (n = 40) | Control group (n = 80) | P value | |
Age, years | 33.52 ± 4.60 | 33.25 ± 3.03 | 0.59 | 34.33 ± 4.37 | 34.51 ± 3.41 | 0.81 |
Menopause (days) | 54.61 ± 10.11 | 54.97 ± 10.35 | 0.80 | 52.98 ± 8.54 | 52.23 ± 9.83 | 0.68 |
Serum β-hCG (mIU/ml) | 55,451 ± 56,570 | 47,289 ± 59,299 | 0.31 | 38,195 ± 37,424 | 38,474 ± 37,180 | 0.97 |
Gravidity | 3.80 ± 1.49 | 4.03 ± 1.82 | 0.33 | 3.49 ± 1.58 | 3.88 ± 1.63 | 0.20 |
Number of cesarean sections | 1.46 ± 0.61 | 1.48 ± 0.57 | 0.88 | 1.42 ± 0.63 | 1.42 ± 0.55 | 0.98 |
Number of artificial-abortion | 1.80 ± 1.31 | 2.13 ± 1.63 | 0.12 | 1.56 ± 1.16 | 2.04 ± 1.57 | 0.08 |
Scar thickness(mm) | 3.07 ± 1.11 | 2.18 ± 0.98 | < 0.01 | 2.44 ± 1.13 | 3.05 ± 1.09 | < 0.01 |
Percentages of grade III blood flow | 20/80(25.00%) | 18/161(11.18%) | 0.03 | 15/40(37.50%) | 10/80(12.50%) | 0.02 |
Mean gestational sac diameter (mm) | 33.54 ± 15.44 | 27.31 ± 14.47 | 0.03 | 34.88 ± 14.66 | 27.34 ± 14.25 | < 0.01 |
Percentages of type III CSP | 33/80(41.25%) | 34/161(21.11%) | 0.02 | 19/40(47.50%) | 16/80(20.00%) | 0.04 |
Presence of heartbeat | 29/80(36.25%) | 53/161(32.92%) | 0.61 | 18/40(45.00%) | 31/80(38.75%) | 0.51 |
