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Table 2 Risk factors for PE in women after cesarean section

From: Predictive value of D-dimer and analysis of risk factors in pregnant women with suspected pulmonary embolism after cesarean section

Risk factors PE (%)
(n = 30)
Non-PE (%)
(n = 95)
χ2 value P value
Demographic data     
 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     
 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     
 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