Table 1

Subject characteristics

VariablesAll subjects (ITT)Completers only
nLGInHFPnLGInHFP
Age at study entry (years)7235.7 (4.7)6734.9 (4.1)0.2826536.0 (4.4)6034.7 (4.1)0.091
Prepregnancy BMI (kg/m2)7225.2 (5.2)6725.2 (5.2)0.9466525.1 (5.2)6025.2 (5.4)0.945
Ethnicity (%)72660.41765600.275
 Asian22.228.821.531.7
 Caucasian58.359.158.556.7
 Others19.412.120.011.7
Week of gestation at start of intervention7217.5 (2.0)6717.7 (1.7)0.3776517.5 (2.1)6017.8 (1.7)0.381
GDM diagnosis at study entry (n)721067110.91765960110.754
Parity720.6 (0.7)670.8 (0.8)0.071650.6 (0.6)600.8 (0.8)0.117
Employment72660.57265600.529
 Full-time63.962.161.566.7
 Part-time19.425.821.523.3
 Unemployed/studying/home duties16.712.116.910.0
Education72660.26265600.321
 Secondary9.76.17.73.3
 Technical college22.213.621.515.0
 Tertiary/postgraduate68.180.370.881.7
GDM risk factors (%)
 Age >35 years7263.96753.70.2246566.26050.00.067
 Family history of T2DM7259.76737.30.0086558.56038.30.024
 Previous child >4,000 g726.9679.00.661657.7606.70.825
 Ethnicity*7230.66732.80.7736529.26036.70.376
 BMI >30 kg/m27219.46711.90.2266516.96013.30.577
 Previous GDM6710.46515.40.3976111.55815.50.518
 PCOS657.7637.90.959593.4567.10.36
  • Data are presented as mean (SD) for continuous variables and percentages for categorical variables. P value calculated using one-way ANOVA for continuous variables and Pearson χ2 for categorical variables. ITT, intention to treat; PCOS, polycystic ovary syndrome.

  • *High-risk ethnicities include Aboriginal or Torres Strait Islander, Polynesian, Middle Eastern, Indian, and Asian.