Table 1

Baseline population characteristics of the AusDiab study participants according to diabetes status at the 5-year follow-up

Analysis of incident IFG/IGTAnalysis of incident diabetes
NGT 1999 and 2005Incident IFGIncident IGTPNondiabetic 1999 and 2005*Incident diabetesP
n3,9061372575,171200
Age (years)49 ± 1251 ± 1055 ± 13<0.00151 ± 1255 ± 12<0.001
Sex (male)4358440.00345520.050
FPG (mmol/l)5.2 ± 0.45.6 ± 0.35.4 ± 0.4<0.0015.4 ± 0.55.9 ± 0.6<0.001
2-h plasma glucose (mmol/l)5.4 ± 1.15.7 ± 1.26.2 ± 1.0<0.0015.8 ± 1.55.9 ± 1.8<0.001
BMI (kg/m2)25.9 ± 4.328.8 ± 4.628.1 ± 5.0<0.00126.5 ± 4.629.6 ± 5.6<0.001
Waist circumference (cm)87.4 ± 12.797.5 ± 11.894.3 ± 12.9<0.00189.4 ± 13.298.9 ± 14.6<0.001
Lipid treatment (%)678<0.001716<0.001
HDL cholesterol (mmol/l)1.5 ± 0.41.3 ± 0.31.4 ± 0.4<0.0011.5 ± 0.41.3 ± 0.4<0.001
Total cholesterol (mmol/l)5.6 ± 1.05.8 ± 0.95.9 ± 1.10.0015.6 ± 1.05.9 ± 1.0<0.001
Triglycerides (mmol/l)1.1 (0.8–1.6)1.4 (1.0–2.2)1.5 (1.1–2.2)<0.0011.2 (0.8–1.7)1.7 (1.2–2.5)<0.001
Current smoker (%)1210110.73011150.075
Hypertension (%)223142<0.0012754<0.001
Systolic blood pressure (mmHg)125 ± 16131 ± 17133 ± 19<0.001127 ± 17137 ± 18<0.001
Diastolic blood pressure (mmHg)69 ± 1173 ± 1171 ± 12<0.00170 ± 1175 ± 12<0.001
  • Data are mean ± SD unless otherwise indicated. Those with NGT had normal glucose tolerance at baseline and follow-up. Those included with incident IFG or IGT had NGT at baseline. Those with incident diabetes were free of diabetes at baseline and had a diagnosis of newly diagnosed diabetes at follow-up. Only those with complete data on variables modeled are included.

  • *Includes those with IFG or IGT at baseline or follow-up.