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Table 1 Baseline characteristics at 1 st antenatal visit between intervention and control groups 1

From: The influence of a low glycemic index dietary intervention on maternal dietary intake, glycemic index and gestational weight gain during pregnancy: a randomized controlled trial

  Intervention (n = 235) Control (n = 285) P2
  Mean ± SD Mean ± SD  
Age (years) 32.0 ± 3.8 31.7 ± 4.2 0.42
Gestation (wks) 12.8 ± 2.4 12.8 ± 2.3 0.65
Weight (kg) 72.5 ± 12.4 71.9 ± 12.4 0.64
Height (m) 1.66 ± 0.6 1.66 ± 0.6 0.37
BMI (kg/m2) 26.4 ± 4.4 26.3 ± 4.2 0.81
  N (%) N (%)  
3rd level Education3 132 (56.2) 150 (52.6) 0.46
Smoke 10 (4.3) 16 (5.6) 0.47
White Native Irish 209 (88.9) 246 (86.3) 0.24
Physically active4 59 (25.1) 62 (21.8) 0.37
Breastfeed 1st child5 145 (61.7) 171 (60.0) 0.78
  1. 1The baseline/1st antenatal visit was between 10 and 18 weeks gestation.
  2. 2P value assessed using independent samples t-test for continuous variables and χ2 test for categorical variables.
  3. 3Attainmet of a college/university bachelors degree or higher.
  4. 4Achieve 30 minutes of moderate intensity PA at least 5 days/week.
  5. 5Breastfeed their previous child for any length of time.