Table 1. Baseline clinical and demographic characteristics of patients in training and test subsamples.
| Variable | Males | Females | |||
| Training sample | Test sample | Training sample | Test sample | ||
| Number of patients | N | 12578 | 4238 | 9197 | 3021 |
| Age at diagnosis | Mean ± SD | 55.36±9.28 | 55.33±9.24 | 57.15±9.55 | 56.89±9.66 |
| Diabetes duration,(years) | Mean ± SD | 8.92±7.14 | 9.02±7.08 | 9.02±7.17 | 9.15±7.37 |
| HbA1c (%) | Mean ± SD | 7.34±1.18 | 7.38±1.21 | 7.37±1.18 | 7.42±1.20 |
| BMI (kg/m2) | Mean ± SD | 28.84±4.44 | 28.81±4.51 | 29.67±5.55 | 29.68±5.49 |
| Systolic BP (mmHg) | Mean ± SD | 141.47±17.51 | 141.21±17.61 | 143.76±18.66 | 143.83±18.62 |
| Diastolic BP (mmHg) | Mean ± SD | 78.85±9.40 | 78.70±9.36 | 77.11±9.38 | 77.36±9.26 |
| TC/HDL | Mean ± SD | 4.23±1.29 | 4.20±1.29 | 3.95±1.25 | 3.96±1.27 |
| LDL cholesterol (mmolL−1) | Mean ± SD | 2.86±0.88 | 2.83±0.90 | 3.00±0.93 | 2.99±0.91 |
| Smokers | % | 15.07 | 15.41 | 14.11 | 14.30 |
| Macroalbuminuria | % | 7.09 | 6.96 | 4.03 | 3.78 |
| Microalbuminuria | % | 20.16 | 20.41 | 13.80 | 13.67 |
There were no statistically significant differences between training and test samples.
Abbreviation: BP, blood pressure; TC/HDL, total to HDL cholesterol ratio.