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Table 1 Baseline characteristics of study participants
| Fasting glucose (mg/dL) | |||
|---|---|---|---|
| NFG (< 100.0 mg/dL) | IFG (100.0–125.9 mg/dL) | p value | |
| Number of subjects, n | 198,560 | 61,927 | |
| Age, years, mean (SD) | 53.5 (8.6) | 54.7 (8.9) | |
| 40–49, % | 41.6 | 35.8 | < 0.001 |
| 50–59, % | 34.8 | 35.9 | |
| 60–69, % | 17.5 | 20.9 | |
| ≥ 70, % | 6.1 | 7.4 | |
| Sex, % | |||
| Men | 55.3 | 64.6 | |
| Women | 44.7 | 35.4 | |
| Socioeconomic status, % | |||
| Low | 34.2 | 35.4 | < 0.001 |
| High | 65.5 | 64.2 | |
| BMI, kg/m2, mean (SD) | 23.7 (2.8) | 24.2 (2.9) | |
| <18.5, % | 2.5 | 1.9 | < 0.001 |
| 18.5-22.9, % | 39.2 | 32.8 | |
| 23-24.9, % | 27.8 | 28.3 | |
| ≥25, % | 30.5 | 37.0 | |
| Smoking status, % | |||
| Never smoker | 66.2 | 61.4 | < 0.001 |
| Ever smoker | 29.8 | 34.6 | |
| Alcohol consumption, per week, % | |||
| < 3 times | 88.9 | 84.9 | < 0.001 |
| ≥ 3 times | 9.5 | 13.6 | |
| Physical activity, per week, % | |||
| < 3 times | 76.2 | 75.9 | 0.092 |
| ≥ 3 times | 21.6 | 22.0 | |
| CCI, % | |||
| 0 | 36.5 | 36.8 | < 0.001 |
| 1–2 | 50.9 | 49.5 | |
| ≥ 3 | 12.6 | 13.7 | |
| Systolic BP, mmHg, mean (SD) | 124.6 (16.7) | 128.1 (17.1) | < 0.001 |
| Diastolic BP, mmHg, mean (SD) | 78.3 (11.0) | 80.3 (11.1) | < 0.001 |
| Total cholesterol, mg/dL, mean (SD) | 197.3 (36.0) | 200.1 (37.1) | <0.001 |
