Table 2. Baseline characteristics.
| Characteristics | No-risk group (eligible for healthcare guidance) | At-risk group (eligible for interventional program) |
|||
|---|---|---|---|---|---|
| Non-participants | Participants | Standardized difference a | P value (Non-participants vs. participants) | ||
| n | 3 350 354 | 907 909 | 111 779 | ||
| Age, % | |||||
| 40–44 | 27.4 | 24.9 | 18.9 | −14.4 | <0.001 |
| 45–49 | 23.3 | 24.1 | 19.8 | −10.4 | |
| 50–54 | 18.9 | 21.7 | 18.0 | −9.2 | |
| 55–59 | 12.2 | 13.9 | 13.2 | −2.1 | |
| 60–64 | 7.6 | 6.5 | 10.2 | 13.4 | |
| 65–69 | 8.1 | 6.6 | 14.6 | 26.0 | |
| ≥70 | 2.5 | 2.3 | 5.3 | 15.8 | |
| Men, % | 51.6 | 82.4 | 77.8 | 11.5 | <0.001 |
| Smoking, % | 25.0 | 34.9 | 28.4 | 14.0 | <0.001 |
| WC, cm | 78.1 (7.1) | 91.2 (5.9) | 91.2 (5.7) | −1.0 | 0.001 |
| BMI, kg/m2 | 21.6 (2.4) | 26.2 (2.5) | 26.1 (2.4) | −5.9 | <0.001 |
| SBP, mm Hg | 118.2 (15.6) | 130.7 (15.9) | 130.6 (15.4) | −0.5 | 0.154 |
| DBP, mm Hg | 73.1 (10.7) | 82.2 (11.0) | 81.2 (10.5) | −9.9 | <0.001 |
| TG, mg/dl b | 82 (60–116) | 147 (99–201) | 141 (96–195) | −5.1 | <0.001 |
| HDL, mg/dl | 66.3 (16.0) | 54.0 (13.2) | 54.1 (13.1) | 0.8 | 0.017 |
| HbA1c, % c | 5.4 (0.3) | 5.5 (0.4) | 5.6 (0.4) | 3.7 | <0.001 |
| FBG, mg/dl c | 91.7 (8.6) | 98.2 (9.8) | 97.7 (9.6) | −5.0 | <0.001 |
a Standardized difference is the mean difference divided by the pooled standard deviation, expressed as a percentage.
b Standardized differences were calculated using log-transformed triglyceride.
c FBG or HbA1c or both can be measured in the program.
WC, waist circumference; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; TG, triglyceride; HDL, high-density lipoprotein cholesterol; HbA1c, hemoglobin A1c; and FBG, fasting blood glucose.