Variable | Univariate analysis | Multivariate logistic analysis | ||
---|---|---|---|---|
OR (95% CI) | P value | OR (95% CI) | P value | |
Maternal age, y | 1.02(0.94 ~ 1.10) | 0.69 | NA | NA |
BMI at delivery, kg/m2 | 1.06(0.96 ~ 1.16) | 0.24 | NA | NA |
Gravidity | ||||
≤ 3 | 1 | Reference | NA | NA |
≥ 4 | 1.14(0.59 ~ 2.22) | 0.69 | NA | NA |
Parity | ||||
≤ 1 | 1 | Reference | NA | NA |
≥ 2 | 1.13(0.44 ~ 2.89) | 0.80 | NA | NA |
Prior uterine curettage | ||||
≤ 2 | 1 | Reference | NA | NA |
≥ 3 | 1.22(0.54 ~ 2.72) | 0.64 | NA | NA |
Prior cesarean delivery | ||||
≤ 1 | 1 | Reference | NA | NA |
≥ 2 | 1.35(0.52 ~ 3.53) | 0.54 | NA | NA |
History of placenta previa | 2.06(0.63 ~ 6.74) | 0.22 | NA | NA |
History of postpartum hemorrhage | 1.49(0.32 ~ 6.89) | 0.92 | NA | NA |
Hypertensive disorders | 0.97(0.23 ~ 4.04) | 1.00 | NA | NA |
Diabetes | 0.83(0.32 ~ 2.16) | 0.70 | NA | NA |
Anterior placenta | 1.16(0.52 ~ 2.60) | 0.72 | NA | NA |
Degree of PAS | 2.73(1.50 ~ 4.96) | < 0.01* | ||
Grade 1 (Placenta accreta) | 1 | Reference | ||
Grade 2 (Placenta increta) | 2.53(1.17 ~ 5.48) | 0.02 | ||
Grade 3 (Placenta percreta) | 6.27(1.73 ~ 22.64) | < 0.01* | ||
Preoperative level of hemoglobin | 0.98(0.95 ~ 1.01) | 0.27 | NA | NA |
Intra-aortic balloon occlusion | 0.55(0.27 ~ 1.08) | 0.08 | 0.46(0.23 ~ 0.96) | 0.04 |