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Table 2 Maternal Outcomes in the Endometriosis and Control groups

From: Adverse effects of endometriosis on pregnancy: a case-control study

Maternal outcomes Endometriosis (N = 80) Control (N = 2689) p-value
Gestational age (weeks) 38.3 ± 2.1 38.4 ± 2.4 0.34
Delivery mode
 Normal Vaginal 30 (37.5) 1245 (46.3)  
 Instrumental 7 (8.8) 267 (9.9)  
 Scheduled Cesarean Section 30 (37.5) 681 (25.3)  
 Emergency Cesarean Section 13 (16.2) 496 (18.4) 0.11
Blood Loss (mL)
 Normal Vaginal 752 ± 688 560 ± 360 0.04
 Instrumental 1000 ± 421 787 ± 557 0.10
 Scheduled Cesarean Section 1346 ± 675 1099 ± 692 0.01
 Emergency Cesarean Section 852 ± 314 944 ± 566 0.92
Preterm birth (< 37 weeks) 8 (10.0) 322 (12.0) 0.72
Hypertensive Disorders of Pregnancy 4 (5.0) 187 (7.0) 0.66
Gestational Diabetes Mellitus 3 (3.8) 109 (4.1) 1.00
Postpartum Hemorrhage 22 (27.5) 490 (18.2) 0.04
Placental Abruption 2 (2.5) 17 (0.6) 0.10
Placenta Previa 10 (12.5) 109 (4.1) < 0.01
  1. Data are presented as mean ± standard deviation or n (%). Postpartum Hemorrhage is defined as greater than 800 mL of estimated blood loss including amniotic fluid in a vaginal delivery or greater than 1500 mL of estimated blood loss including amniotic fluid in a cesarean section