Skip to main content

Table 1 Demographic and obstetrical data for oocyte recipients (Index group) and Control groups A and B

From: Adverse obstetric outcomes in pregnancies resulting from oocyte donation: a retrospective cohort case study in Sweden

  Index group (n = 76) Control group A (n = 150) Control group B (n = 63)
  Median (IQR) Min-Max Median (IQR) Min-Max Median (IQR) Min-Max
Age, years 35.0 (4.0) 25–43 34.0 (4.0)*** 19–36 33.0 (5.0)* 25–39
 <35 36(47.4 %)   82(54.7 %)   42(66.7 %)*  
 ≥35 40(52.6 %)   68(45.3 %)   21(33.3 %)*  
  Median (IQR) Min-Max Median (IQR) Min-Max Median (IQR) Min-Max
Estimated gestational age, week 40.0 (4.0) 28–42 40.0 (3.0) 28–43 39.0 (2.0) 36–42
  Mean (SD) Min-Max Mean (SD) Min-Max Mean (SD) Min-Max
BMI, kg/m2 24.98(3.65) 18.0–34.6 24.32 (3.93) 18.1–41.0 24.06(3.54) 16.0–32.6
 <25 33(47.1 %)   87(65.9 %)* 40(64.5 %)*  
 ≥25 37(52.9 %)   45(34.1 %)* 22(35.5 %)*  
Nulliparity 70/76(92.1 %) 150/150 (100 %) 58/63(92.1 %)
Nicotine use    
 No 63/68(92.6 %) 110/141(78 %)** 56/61(91.8 %)
 Yes 5 /68(7.4 %) 31/141 (22 %)** 5/61 (8.2 %)
Chronic diseases    
 No 55/76(72.4 %) 131/150(87.3 %)* 54/63(85.7 %)
 Yes 21/76(27.6 %) 19/150 (12.7 %)* 9/63 (14.3 %)
  1. *p < 0.05
  2. **p < 0.01
  3. ***p < 0.001