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Table 1 Maternal baseline, GDM, labour and birth, and newborn characteristics

From: Safe threshold of capillary blood glucose for predicting early future neonatal hypoglycaemia in babies born to mothers with gestational diabetes mellitus, an observational, retrospective cohort study

Characteristic N Total Babies with hypoglycaemiaa, b Babies with no hypoglycaemia P value
Mother
Age in years 106 Mean 32.3 (range 19–45) 32.6 years 32.3 years 0.8
BMI in kg/m2 106     
Normal (18.5–25)   19 (18%) 2 17 -
Overweight (25.01–30)   32 (30) 3 29 0.9
Obese (> 30)   55 (52) 10 45 0.4
Parity 106     
0   45 (41) 7 38 -
1 or more   61 (59) 8 53 0.8
Ethnicity 106     
White Caucasian   59 (54) 10 49 -
Non-white   47 (46) 5 42 0.5
GDM    
OGTT mmol/L      
fasting 99 5.1 (4.0–11.5) 5.5 mmol/L 5.1 mmol/L 0.3
1-h 93 9.7 (4.1–15.5) 10.3 9.6 0.2
2-h 95 7.4 (3.8–13.5) 7.6 7.4 0.8
HbA1c (%) 100 5.2 (4.0–6.6) 5.2% 5.2% 0.7
Diabetes control 106     
Diet alone   56 (52) 7 49 -
Metformin   35 (34) 6 29 0.5
Insulin (± metformin)   13 (12) 2 11 0.9
Labour and delivery
Onset of labour 106     
Spontaneous   41 (38) 4 37 -
Induced   44 (42) 8 36 0.3
No labour   21 (20) 3 18 0.6
Intrapartum BG 99     
Self   91 (92) 11 80 -
Variable rate insulin intravenous infusion   8 (8) 2 6 0.3
Mode of delivery 106     
Vaginal spontaneous   60 (57) 7 53  
Vaginal assisted   14 (13) 3 11 0.3
Caesarean section   32 (30) 5 27 0.6
Neonatal characteristics
Sex 106     
Male   58 (55) 8 50 0.9
Gestational age at delivery 106 275 days (range 259–290) 278 275 0.1
Birthweight 106     
 > 90th centile   24 (23) 0 24 -
 < 10th centile   5 (5) 0 5 -
Feeding characteristics
Mode of first feed 103     
Breast   92 (89) 14 78 0.4
  1. aHypoglycaemia as per pragmatic definition including biochemical and clinical signs. b N unless units given