Table 6 Risk factors associated with massive blood loss in pregnant women complicated with placenta previa and prior cesarean
> = 1000 mL | < 1000 mL | P Value | Adjusted OR (95%CI) | Adjusted P value | |
|---|---|---|---|---|---|
N | 48 | 171 | |||
Age (Years) | 34.10 ± 4.00 | 33.78 ± 4.20 | 0.638 | ||
Gestational age (Days) | 249.8 ± 22.9 | 247.8 ± 36.9 | 0.726 | ||
Time since last surgery (Months) | 58.1 ± 33.3 | 66.1 ± 37.8 | 0.188 | ||
Gestational diabetes mellitus (%) | 11(22.9) | 30(17.5) | 0.407 | ||
Hypertensive disorder (%) | 0 | 7(4.1) | 0.352 | ||
Prior Cesarean > = 2 times (%) | 10(20.8) | 9(5.3) | 0.002 | ||
Prior curettage (%) | 29(60.4) | 78(45.6) | 0.075 | ||
Bleeding prior to delivery (%) | 19(39.6) | 48(28.1) | 0.156 | ||
Pregravid BMI (kg/m2) | 22.20 ± 2.70 | 21.80 ± 2.86 | 0.403 | ||
Prepartum BMI (kg/m2) | 26.42 ± 3.13 | 26.24 ± 2.92 | 0.711 | ||
Last Hb before delivery (g/L) | 106.60 ± 13.17 | 114.61 ± 15.13 | 0.001 | ||
Vascular lacunae | 24(50.0) | 9(5.3) | < 0.001 | ||
Loss of normal hypoechoic retroplacental zone | 29(60.4) | 2(1.2) | < 0.001 | 115.933 (11.913,1128.228) | < 0.001 |
Retroplacental myometrial thinness | 6(12.5) | 3(1.8) | 0.004 | ||
Placental thickness | 19(39.6) | 1(0.6) | < 0.001 | 77.542 (4.394,1368.455) | 0.003 |
Central Placenta previa | 36(75.0) | 42(24.6) | < 0.001 | 3.563 (1.287,9.861) | < 0.001 |
Anterior Placenta position | 39(81.3) | 88(54.0) | 0.001 |