Entire cohort | Propensity score-matched cohort | |||||
---|---|---|---|---|---|---|
Balloon(68) | Control(88) | P value | Balloon(28) | Control(28) | P value | |
Maternal age, y | 33.38 ± 4.65 | 33.80 ± 4.13 | 0.56 | 33.79 ± 5.43 | 33.32 ± 4.41 | 0.73 |
BMI at delivery, kg/m2 | 26.54 ± 3.38 | 26.45 ± 3.75 | 0.87 | 26.25 ± 3.09 | 26.05 ± 2.50 | 0.80 |
Gravidity | ||||||
≤ 3 | 43(63.24%) | 37(42.05%) | 0.01* | 13(46.43%) | 15(53.57%) | 0.59 |
≥ 4 | 25(36.76%) | 51(57.95%) | 15(53.57%) | 13(46.43%) | ||
Parity | ||||||
≤ 1 | 59(86.76%) | 75(85.23%) | 0.78 | 22(78.57%) | 24(85.71%) | 0.73 |
≥ 2 | 9(13.24%) | 13(14.77%) | 6(21.43%) | 4(14.29%) | ||
Prior uterine curettage | ||||||
≤ 2 | 59(86.76%) | 65(73.86%) | 0.048* | 24(85.71%) | 24(85.71%) | 1.00 |
≥ 3 | 9(13.24%) | 23(26.14%) | 4(14.29%) | 4(14.29%) | ||
Prior cesarean deliveries | ||||||
≤ 1 | 59(86.76%) | 77(87.50%) | 0.89 | 23(82.14%) | 25(89.29%) | 0.70 |
≥ 2 | 9(13.24%) | 11(12.50%) | 5(17.86%) | 3(10.71%) | ||
History of placenta previa | ||||||
Yes | 7(10.29%) | 5(5.68%) | 0.28 | 1(3.57%) | 1(3.57%) | 1.00 |
No | 61(89.71%) | 83(94.32%) | 27(96.43%) | 27(96.43%) | ||
History of postpartum hemorrhage | ||||||
Yes | 6(8.82%) | 1(1.14%) | 0.06 | 1(3.57%) | 1(3.57%) | 1.00 |
No | 62(91.18%) | 87(98.86%) | 27(96.43%) | 27(96.43%) | ||
Hypertensive disorders | ||||||
Yes | 3(4.41%) | 6(6.82%) | 0.77 | 2(7.14%) | 2(7.14%) | 1.00 |
No | 65(95.59%) | 82(93.18%) | 26(92.86%) | 26(92.86%) | ||
Gestational diabetes mellitus | ||||||
Yes | 10(14.71%) | 13(14.77%) | 1.00 | 4(14.29%) | 1(3.57%) | 0.35 |
No | 58(85.29%) | 75(85.23%) | 24(85.71%) | 27(96.43%) | ||
Anterior placenta | ||||||
Yes | 57(83.82%) | 64(72.73%) | 0.10 | 22(78.57%) | 21(75.00%) | 0.75 |
No | 10(14.93%) | 24(27.27%) | 6(21.43%) | 7(25.00%) | ||
Degree of PAS | ||||||
Grade 1 (Placenta accreta) | 23(33.82%) | 36(40.91%) | 0.56 | 0(0.00%) | 3(10.71%) | 0.19 |
Grade 2 (Placenta increta) | 38(55.88%) | 46(52.27%) | 16(57.14%) | 13(46.43%) | ||
Grade 3 (Placenta percreta) | 7(10.29%) | 6(6.82%) | 12(42.86%) | 12(42.86%) | ||
Preoperative level of hemoglobin (g/dl) | 110.28 ± 10.18 | 109.58 ± 11.50 | 0.69 | 110.39 ± 9.09 | 110.29 ± 12.38 | 0.97 |
Gestational age at delivery | 35.98 ± 1.82 | 35.52 ± 2.49 | 0.21 | 35.98 ± 2.18 | 35.44 ± 2.70 | 0.41 |