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Basic characteristics of subjects for the two datasets.
| Characteristic | Training set (N=21,338), mean (SD) | Test set (N=21,338), mean (SD) |
| Duration of illness (years) | 5.8 (5.10) | 5.7 (5.01) |
| Age (years) | 49.97 (12.01) | 49.52 (11.99) |
| Last SBPa (mmHg) | 131.39 (10.49) | 131.37 (10.37) |
| Maximum SBP (mmHg) | 135.40 (11.85) | 135.70 (12.01) |
| Minimum SBP (mmHg) | 128.21 (10.45) | 127.96 (10.49) |
| Mean SBP (mmHg) | 131.68 (9.66) | 131.69 (9.57) |
aSBP: systolic blood pressure.
