Table 1 Baseline data in three groups
Posterior group (n = 89) | Anterior group (n = 60) | Non-central group (n = 241) | P value | |
|---|---|---|---|---|
Age(years) | 31.02 ± 4.93 | 31.02 ± 4.93 | 31.27 ± 4.62 | 0.889 |
Gestational age(days) | 252.63 ± 15.45 | 249.32 ± 12.62 | 247.05 ± 15.15 | 0.010 |
BMI | 28.49 ± 4.08 | 27.90 ± 3.57 | 28.11 ± 3.82 | 0.619 |
Region, N (%) | 0.418 | |||
Rural | 60(67.42) | 45(75.00) | 158(65.56) | |
Urban | 29(32.58) | 15(25.00) | 83(34.44) | |
Occupation, N (%) | 30(33.71) | 19(31.67) | 77(31.95) | 0.949 |
Gravidity, N (%) | 0.002 | |||
1 | 10(11.24) | 2(3.33) | 7(2.90) | |
2–3 | 45(50.56) | 37(61.67) | 108(44.81) | |
> 3 | 34(38.20) | 21(35.00) | 126(52.28) | |
Parity, N (%) | 0.012 | |||
0 | 13(14.61) | 4(6.67) | 15(6.22) | |
1 | 61(68.54) | 44(73.33) | 151(62.66) | |
≥ 2 | 15(16.85) | 12(20.00) | 75(31.12) | |
Uterine surgery, N (%) | 0.013 | |||
0 | 35(39.33) | 30(60.00) | 69(28.63) | |
1 | 29(32.58) | 17(28.33) | 79(32.78) | |
> 1 | 25(28.09) | 13(21.67) | 93(38.59) | |
Number of vaginal delivery, N (%) | 23(25.84) | 2(3.33) | 34(14.11) | < 0.001 |
Hemorrhage during pregnancy, N (%) | 51(57.30) | 37(61.67) | 163(67.63) | 0.197 |
The type of placenta previa, N (%) | < 0.001 | |||
Marginal | 26(29.21) | 16(26.67) | 0(0.00) | |
Partial | 13(14.61) | 3(5.00) | 5(2.07) | |
Complete | 50(56.18) | 41(68.33) | 236(97.93) | |
Emergency surgery | 21(23.60) | 14(23.33) | 49(20.33) | 0.808 |
History of cesarean delivery, N (%) | 57(64.04) | 55(91.67) | 208(86.31) | < 0.001 |
Fetal presentation | 0.841 | |||
Cephalic | 72(80.90) | 51(85.00) | 193(80.08) | |
Breech | 10(11.24) | 4(6.67) | 29(12.03) | |
Shoulder | 7(7.87) | 5(8.33) | 19(7.88) | |
Grade of placenta accreta spectrum | < 0.001 | |||
Adherent | 57(64.04) | 15(25.00) | 60(24.90) | |
Invasive | 32(35.96) | 45(75.00) | 181(75.10) |