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Table 4 Induction of labour and mode of delivery

From: Obstetric outcome in donor oocyte pregnancies: a matched-pair analysis

  All pregnancies Singletons Twins
  DO (%) AO (%) p DO (%) AO (%) P DO (%) AO (%) P
Induction of labour (%) 16/201 (8.0) 41/201 (20.4) <0.001 16/144 (11.1) 36/144 (25.0) 0.004 0/57 (0) 5/57 (8.7) 0.06
Mode of delivery          
 Spontaneous delivery (%) 53/202 (26.2) 84/202 (41.6) 0.002 46/145 (31.7) 67/145 (46.2) 0.02 7/57 (12.3) 17/57 (29.8) 0.04
 Assisted vaginal delivery (%) 30/202 (14.9) 25/202 (12.4) 0.56 28/145 (37.8) 24/145 (26.4) 0.65 2/57 (3.5) 1/57 (1.8) 1
  Forceps* (%) 9/30 (30) 5/25 (20)   9/28 (32.1) 4/24 (16.7)   0/2 (0) 1/1 (100)  
  Ventouse* (%) 21/30 (70) 20/25 (80)   19/28 (67.9) 20/24 (83.3)   2/2 (100) 0/1 (0)  
 Caesarean section (%) 119/202 (58.9) 93/202 (46.0) 0.01 71/145 (50.0) 54/145 (37.2) 0.06 48/57 (84.2) 39/57 (68.4) 0.08
  Elective c. Section (%) 55/119 (46.2) 61/93 (65.6)   31/71 (43.7) 33/54 (61.1)   24/48 (50.0) 28/39 (71.8)  
  1. Paired t tests for continuous variables and McNemar test for categorical variables.
  2. DO: Donated oocyte; AO: Autologeous oocyte.
  3. Categorical variables are presented as numerator and denominator values (%), and continuous variables as mean (SD, standard deviation) for each group of interest.
  4. *Forceps and Ventouse deliveries as proportion of all assisted vaginal deliveries.
  5. ** Elective caesarean sections as proportion of all caesarean sections.