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Table 2 Association between selective and universal offer of an OGTT to identify gestational diabetes and risk of adverse maternal and neonatal outcomes in the whole obstetric population and in women with gestational diabetes

From: Evaluation of the impact of universal testing for gestational diabetes mellitus on maternal and neonatal health outcomes: a retrospective analysis

  Whole obstetric population Women identified with gestational diabetes
  Selective offer of an OGTT 2004–2006 N = 17160 N (%) Universal offer of an OGTT 2008–2010 N = 18514 N (%) Rate ratio comparing after to before (95% CI) Selective offer of an OGTT 2004–2006 N = 280 N (%) Universal offer of an OGTT 2008–2010 N = 1132 N (%) Rate ratio comparing after to before (95% CI)
Induction of labour 2422 (14.1) 3678 (20.0) 1.43 (1.35- 1.50) 120 (42.9) 587 (51.9) 1.21 (1.00-1.49)
Caesarean birth 3477 (20.3) 3709 (20.0) 1.00 (0.96-1.05) 122 (43.6) 345 (30.5) 0.70 (0.57-0.87)
Macrosomia (birth weight ≥4 kg) 1105 (6.4) 1219 (6.6) 1.04 (0.95-1.12) 45 (16.1) 50 (4.4) 0.22 (0.15-0.34)
Perinatal mortality 228 (1.3) 212 (1.1) 0.86 (0.71-1.04) 4 (1.4) 8 (0.7) 0.12 (0.03-0.46)
Admitted to NNU 1670 (9.7) 1497 (8.1) 0.83 (0.77-0.89) 69 (24.6) 118 (10.4) 0.42 (0.31-0.58)
Erb’s palsy 7 (0.04) 12 (0.06) 1.59 (0.58-4.76) * * *
Fractured clavicle 4 (0.02) 6 (0.03) 1.39 (0.33-6.70) * * *
  1. OGTT = oral glucose tolerance test.
  2. NNU: neonatal unit; *insufficient numbers to perform analyses for these outcomes in those identified with gestational diabetes.