Table 1. Demographic characteristics of the participants, based on the presence of carotid plaque (CP).
| Characteristics | CP | Non-CP | P |
|---|---|---|---|
| Total, n (%) | 1574 (41.5) | 2215 (58.5) | — |
| Men | 782 (50.1) | 778 (49.9) | <0.001 |
| Women | 792 (35.5) | 1437 (64.5) | |
| Age, year, mean (SD) | 63.38 (9.49) | 61.13 (9.90) | <0.001 |
| Age group, n (%) | <0.001 | ||
| 45 ~ 54 years | 281 (22.7) | 955 (77.3) | |
| 55 ~ 64 years | 684 (45.2) | 830 (54.8) | |
| 65 ~ 74 years | 390 (53.9) | 334 (46.1) | |
| ≥75 years | 219 (69.5) | 96 (30.5) | |
| Education, year, Mean(SD) | 4.91 (3.78) | 5.69 (3.61) | <0.001 |
| SBP, mean(SD), mmHg | 151.58 (23.25) | 142.76 (20.60) | <0.001 |
| DBP, mean(SD), mmHg | 87.32 (11.56) | 86.45 (11.28) | 0.021 |
| BMI, mean(SD), Kg/m2 | 25.35 (3.70) | 25.72 (3.67) | 0.002 |
| FBG, mean(SD), mmol/L | 6.09 (1.83) | 5.81 (1.34) | <0.001 |
| TC, mean(SD), mmol/L | 4.99 (1.15) | 4.78 (1.04) | <0.001 |
| TG, mean(SD), mmol/L | 1.76 (1.24) | 1.76 (1.31) | 0.903 |
| HDL-C, mean(SD), mmol/L | 1.45 (0.45) | 1.46 (0.47) | 0.582 |
| LDL-C, mean(SD), mmol/L | 3.07 (1.44) | 2.43 (1.02) | <0.001 |
SD, standard deviation; SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index; FBG, fasting blood glucose; TC, total cholesterol; TG, triglycerides; HDL-C, high density lipoprotein cholesterol; LDL-C, low density lipoprotein cholesterol.