Table 2.
Basic characteristics for new-onset MetS participants across age groups.
| Variables | <45 Y(n=5125) | 45~54 Y (n=8419) | 55~64 Y (n=7527) | ≥65 Y (n=4054) | P Value |
|---|---|---|---|---|---|
| Age, years | 37.95 ± 5.35 | 50.53 ± 2.90 | 59.54 ± 2.77 | 71.48 ± 5.13 | <0.01 |
| Male n (%) | 4328 (84.45) | 6312 (74.97) | 6284 (83.49) | 3660 (90.28) | <0.01 |
| Waist circumference, cm | 94.43 ± 7.19 | 93.49 ± 7.42 | 94.56 ± 7.11 | 95.44 ± 7.26 | <0.01 |
| Heart rate, beats/min | 76.12 ± 10.56 | 75.63 ± 10.59 | 74.72 ± 10.83 | 74.93 ± 11.60 | <0.01 |
| Systolic blood pressure, mm/Hg | 130.75 ± 14.20 | 136.10 ± 16.84 | 142.25 ± 18.06 | 148.62 ± 18.73 | <0.01 |
| Diastolic blood pressure, mm/Hg | 86.65 ± 9.91 | 88.16 ± 10.59 | 87.77 ± 10.58 | 85.16 ± 10.71 | <0.01 |
| Triglycerides, mmol/l | 2.07 (1.45, 2.91) | 1.83 (1.20, 2.57) | 1.58 (1.06, 2.17) | 1.34 (0.93,1.89) | <0.01 |
| HDL-C, mmol/l | 1.35 ± 0.45 | 1.40 ± 0.45 | 1.40 ± 0.46 | 1.41 ± 0.47 | <0.01 |
| FPG, mmol/l | 5.65 ± 1.52 | 6.02 ± 2.17 | 6.21 ± 2.62 | 6.24 ± 2.10 | <0.01 |
| hs-CRP, mmol/l | 1.30 (0.61, 2.80) | 1.30 (0.60, 2.82) | 1.30 (0.59, 3.00) | 1.50 (0.63, 3.40) | <0.01 |
| Hypertension n (%) | 2357 (45.99) | 4829 (57.36) | 5031 (66.84) | 3007 (74.17) | <0.01 |
| Diabetes mellitus n (%) | 385 (7.51) | 1126 (13.37) | 1217 (16.17) | 697 (17.19) | <0.01 |
| Anti-hypertensive drugs n (%) | 743 (14.50) | 1955 (23.22) | 2477 (32.91) | 1665 (41.07) | <0.01 |
| Anti-diabetic drugs n (%) | 124 (2.42) | 403 (4.79) | 491 (6.52) | 246 (6.07) | <0.01 |
| Lipid-lowering drugs n (%) | 71 (1.39) | 196 (2.33) | 218 (2.90) | 102 (2.52) | <0.01 |
| Family history of CVD n (%) | 682 (13.31) | 1290 (15.32) | 956 (12.70) | 320 (7.89) | <0.01 |
| Ever-smokers n (%) | 2633 (51.38) | 3815 (45.31) | 2824 (37.52) | 1068 (26.34) | <0.01 |
| Ever-drinkers n (%) | 3043 (59.38) | 4113 (48.85) | 3072 (40.81) | 1427 (35.20) | <0.01 |
| Physical exercise n (%) | 590 (11.51) | 1223 (14.53) | 1750 (23.25) | 1041 (25.68) | <0.01 |
| Education | <0.01 | ||||
| High school n (%) | 4290 (83.71) | 7703 (91.50) | 6600 (87.68) | 3000 (74.00) | |
| College or above n (%) | 770 (15.02) | 379 (4.50) | 204 (2.71) | 146 (3.60) |
Data are presented as mean ± SD, n (%), or median (P25,P75); Characteristics were assessed in the examination cycle when new-onset MetS was first identified.
HDL-C, high density lipoprotein cholesterol; FPG, fasting plasma glucose; hs-CRP, high sensitivity C-reactive protein.