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Table 3 Maternal GWG between the intervention and control group

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

  I C P
  Mean ± SD Mean ± SD  
Gestational weight gain (kg) 11.5 ± 4.2 12.6 ± 4.4 0.003
  % %  
Meet IOM goal 39.3 34.9 0.31
Exceed IOM goal 33.2 44.7 0.009
Below IOM goal 27.5 20.4 0.06
  1. C, control group (n = 285); I, intervention (n = 235).
  2. P value assessed using the independent samples t-test for continuous data and using the χ 2 test for categorical data.