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Table 1 Baseline characteristics

From: Change in prevalence of gestational diabetes and obstetric complications when applying IADPSG screening criteria in a Belgian French speaking University Hospital. A retrospective cohort study

  Group A Group B p-value
Age n = 3496 n = 2555 0.705
 < 18 14 (0.4%) 9 (0.35%)  
 18–29 1668 (47.71%) 1184 (46.34%)  
 30–39 1640 (46.91%) 1237 (48.41%)  
  > 39 174 (4.98%) 125 (4.89%)  
Maternal BMIa n = 2908 n = 2005 0.438
 Underweight 126 (4.33%) 77 (3.84%)  
 Normal Weight 1660 (57.08%) 1134 (56.87%)  
 Overweight 737 (25.34%) 499 (24.89%)  
 Obese 385 (13.24%) 295 (14.71%)  
Nationality n = 3496 n = 2555 < 0.01
 Belgian 2804 (80.21%) 1891 (74.01%)  
 Non-Belgian 692 (19.79%) 664 (25.99%)  
Parity n = 3496 n = 2555 < 0.01
 Primiparous 1493 (42.71%) 1238 (48.45%  
 Multiparous 2003 (57.29%) 1317 (51.55%)  
  1. aMissing values maternal BMI 16.7%, randomly distributed in age, nationality, parity and GDM