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Table 5 Pregnancy outcomes according to predicted chance in fifths of uncomplicated pregnancy and birth using the clinical model

From: Prediction of uncomplicated pregnancies in obese women: a prospective multicentre study

  Least likely to have an uncomplicated pregnancy and birth    Most likely to have an uncomplicated pregnancy and birth   
  1st fifth(n = 181) 2nd fifth(n = 181) 3rd fifth(n = 182) 4th fifth(n = 181) 5th fifth(n = 182) P value
Uncomplicated pregnancy (%) 47 (17.2) 67 (24.5) 98 (35.8) 126 (46) 154 (56.2) < 0.001
Antenatal outcomes (%)
 Miscarriagea 2 (0.7) 1 (0.4) 2 (0.7) 2 (0.7) 1 (0.4) 0.94
 Preterm delivery 13 (4.8) 23 (8.4) 8 (2.9) 17 (6.3) 14 (5.1) 0.07
 Gestational diabetes 82 (30.1) 59 (21.6) 73 (26.8) 71 (26.1) 39 (14.3) < 0.001
 Preeclampsia 16 (5.9) 17 (6.2) 8 (2.9) 6 (2.2) 4 (1.5) 0.006
 Other hypertensive disorders 37 (13.6) 9 (3.3) 19 (7.0) 12 (4.4) 5 (1.8) < 0.001
 Antepartum haemorrhage 15 (5.5) 8 (2.9) 9 (3.3) 14 (5.1) 7 (2.6) 0.26
 Placental abruption 2 (0.7) 2 (0.7) 2 (0.7) 3 (1.1) 0 (0) 0.61
 Venous thromboembolism 2 (0.7) 1 (0.4) 0 (0) 0 (0) 0 (0) 0.25
 Small for gestational age 34 (12.5) 43 (15.8) 27 (9.9) 27 (9.9) 27 (9.9) 0.13
 Large for gestational age 22 (8.1) 19 (7.0) 25 (9.2) 30 (11.0) 24 (8.8) 0.55
 Stillbirth 2 (0.7) 2 (0.7) 2 (0.7) 1 (0.4) 0 (0) 0.68
Labour outcomes (%)
 Induction of labour 145 (53.3) 107 (39.2) 92 (33.8) 72 (26.5) 64 (23.4) < 0.001
 Elective caesarean section 47 (17.3) 33 (12.1) 64 (23.5) 70 (25.7) 46 (16.8) < 0.001
 Mode of delivery (in labour)       
  Spontaneous vaginal 88 (39.1) 113 (47.1) 136 (65.4) 169 (83.7) 204 (89.9) < 0.001
  Instrumental delivery 55 (24.4) 59 (24.6) 25 (12.0) 14 (6.9) 7 (3.1) < 0.001
  Emergency CS 82 (36.4) 68 (28.3) 47 (22.6) 19 (9.4) 16 (7.0) < 0.001
 Postpartum haemorrhage 57 (21) 39 (14.3) 32 (11.8) 27 (9.9) 23 (8.4) < 0.001
 Apgar < 7 at 5 min 10 (3.7) 5 (1.8) 5 (1.8) 5 (1.8) 2 (0.7) 0.18
 NICU admission 29 (10.7) 23 (8.4) 19 (7.0) 22 (8.1) 18 (6.6) 0.45
 Neonatal death 0 (0) 1 (0.4) 0 (0) 3 (1.1) 0 (0) 0.07
  1. aWomen with miscarriage were not included in the analysis of other outcomes
  2. CS caesarean section, NICU neonatal intensive care unit