Table 2 Risk factors for PE in women after cesarean section
Risk factors | PE (%) (n = 30) | Non-PE (%) (n = 95) | χ2 value | P value |
|---|---|---|---|---|
Demographic data | Â | Â | Â | Â |
 Age (> 35 years) | 7 (23.33) | 22 (23.16) | 0.000 | 0.984 |
 Obesity (BMI ≥ 30 kg/m2) | 8 (26.67) | 16 (17.78) | 1.419 | 0.234 |
 Twins or multiplets | 3 (10.00) | 18 (18.95) | 1.306 | 0.253 |
 Parity > 1 | 12 (40.00) | 34 (35.79) | 0.174 | 0.677 |
 Gravidity > 1 | 17 (56.67) | 65 (68.42) | 1.396 | 0.237 |
Macrosomia (birthweight ≥ 4000 g) | 0 (0.00) | 2 (2.11) | – | 1.000c |
 Pregnancy characteristics |  |  |  |  |
 Premature birth | 19 (63.33) | 69 (72.63) | 0.946 | 0.331 |
 Placenta previa | 2 (6.67) | 6 (6.32) | – | 1.000c |
 Premature rupture of membranes | 5 (16.67) | 14 (14.74) | – | 0.776c |
 Placental abruption | 7 (23.33) | 13 (13.68) | – | 0.254c |
 Uterine fibroids | 3 (10.00) | 8 (8.42) | – | 0.724c |
Medical comorbidities | Â | Â | Â | Â |
 Gestational diabetes mellitus | 7 (23.33) | 23 (24.21) | 0.010 | 0.922 |
 Pregnancy-related hypertension | 12 (40.00) | 49 (51.58) | 1.223 | 0.269 |
 Chronic heart disease | 4 (13.33) | 14 (14.74) | – | 1.000c |
 Systemic lupus erythematosus | 0 (0.00) | 1 (1.05) | – | 1.000c |
 Known thrombophilia | 10 (33.33) | 12 (12.63) | 6.738 | 0.014 |
 History of thrombosis | 1 (3.33) | 0 (0.00) | – | 0.240c |
Delivery complications | Â | Â | Â | Â |
 General anesthesia | 32 (33.68) | 12 (40.00) | 0.399 | 0.528 |
 Emergency CS | 23 (76.67) | 63 (66.32) | 1.138 | 0.286 |
 Postpartum hemorrhage | 6 (20.00) | 11 (11.58) | – | 0.238c |
 Postpartum blood transfusion | 7 (23.33) | 20 (21.74) | 0.070 | 0.791 |
 Intraoperative blood transfusion | 2 (6.67) | 3 (3.16) | – | 0.593 |
 Postpartum infection | 3 (10.00) | 4 (4.21) | – | 0.357 |