TABLE 1.
Baseline characteristics of the training and validation sets
| Characteristic | Training set | Validation set | P value |
|---|---|---|---|
| N | 12 947 | 13 071 | |
| Age (y) | 49.03 ± 13.82 | 49.08 ± 13.83 | .751 |
| Age groups | |||
| < 40 y | 3926 (30.32%) | 3961 (30.30%) | .949 |
| 40 to < 60 y | 5856 (45.23%) | 5893 (45.08%) | |
| ≥ 60 y | 3165 (24.45%) | 3217 (24.61%) | |
| BMI (kg/m2) | 24.77 ± 3.34 | 24.84 ± 3.39 | .118 |
| BMI groups | .305 | ||
| < 18.5 kg/m2 | 257 (1.99%) | 239 (1.83%) | |
| 18.5‐24.0 kg/m2 | 5061 (39.09%) | 5135 (39.29%) | |
| 24.0‐28.0 kg/m2 | 5531 (42.72%) | 5488 (41.99%) | |
| ≥ 28 kg/m2 | 2098 (16.20%) | 2209 (16.90%) | |
| SBP (mmHg) | 127.15 ± 17.53 | 127.21 ± 17.61 | .783 |
| DBP (mmHg) | 78.42 ± 11.23 | 78.38 ± 11.05 | .772 |
| FPG (mmol/L) | 5.95 ± 0.32 | 5.95 ± 0.32 | .985 |
| TC (mmol/L) | 4.97 ± 0.95 | 4.97 ± 0.96 | .931 |
| TG (mmol/L) | 1.78 ± 1.43 | 1.80 ± 1.46 | .191 |
| HDL‐c (mmol/L) | 1.33 ± 0.30 | 1.33 ± 0.31 | .413 |
| LDL‐c (mmol/L) | 2.89 ± 0.72 | 2.88 ± 0.73 | .604 |
| ALT (U/L) | 22.00 (15.30‐33.00) | 22.00 (15.50‐33.45) | .400 |
| AST (U/L) | 26.40 ± 11.90 | 26.51 ± 12.31 | .478 |
| Scr (μmol/L) | 72.72 ± 15.75 | 72.83 ± 16.36 | .589 |
| Sex | .903 | ||
| Male | 8594 (66.38%) | 8667 (66.31%) | |
| Female | 4353 (33.62%) | 4404 (33.69%) | |
| Family history of diabetes | .091 | ||
| No | 12 610 (97.40%) | 12 773 (97.72%) | |
| Yes | 337 (2.60%) | 298 (2.28%) | |
| Alcohol consumption | .928 | ||
| No | 10 610 (81.95%) | 10 706 (81.91%) | |
| Yes | 2337 (18.05%) | 2365 (18.09%) | |
| Smoking | .674 | ||
| No | 9492 (73.31%) | 9613 (73.54%) | |
| Yes | 3455 (26.69%) | 3458 (26.46%) |
Note: Continuous variables are summarized as mean (SD) or medians (quartile interval); categorical variables are displayed as a percentage (%).
Abbreviations: ALT, alanine aminotransferase; AST aspartate aminotransferase; BMI, body mass index; BUN, blood urea nitrogen; DBP, diastolic blood pressure; FPG, fasting plasma glucose; HDL‐c, high‐density lipoprotein cholesterol; LDL‐c, low‐density lipid cholesterol; SBP, systolic blood pressure; Scr, serum creatinine; TC, total cholesterol, TG triglyceride.