Table 1 The basic characteristics of samples in the test set and training set
Characteristic | Test set (n = 6490) | Training set (n = 10,000) | P value# |
|---|---|---|---|
Male gender, n (%) | 4387 (67.6%) | 6838 (68.4%) | 0.282 |
Age (years), mean ± SD | 60.1 ± 14.7 | 60.1 ± 15.0 | 0.967 |
Myocardial infarction, n (%) | 443 (6.8%) | 656 (6.6%) | 0.615 |
Congestive heart failure, n (%) | 507 (7.8%) | 795 (8.0%) | 0.642 |
Chronic obstructive pulmonary disease, n (%) | 288 (4.4%) | 467 (4.7%) | 0.368 |
Mild liver disease, n (%) | 799 (12.3%) | 1301 (13.0%) | 0.188 |
Hypertension, n (%) | 3501 (53.9%) | 5389 (53.9%) | 0.950 |
Coronary heart disease, n (%) | 2206 (34.0%) | 3331 (33.3%) | 0.366 |
Serum glucose (mmol/L), mean ± SD | 6.6 ± 2.9 | 6.7 ± 2.9 | 0.793 |
Abnormal urine glucose, n (%) | 1222 (18.8%) | 1884 (18.8%) | 0.987 |