Table 1 Basic characteristics of the study population
Variables | Total | < 20 | 20-<40 | 40-<60 | 60-<80 | 80-<100 | 100-<120 | 120-<140 | 140-<160 | 160-<180 | 180-<200 | > 200 | P-value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | ng/ml | |||
Percent of all adults (%) | 100 | 12.2 | 12.8 | 13 | 12.1 | 9.4 | 7.9 | 5.8 | 4.6 | 3.4 | 2.5 | 16.2 | < 0.001 |
Gender(%) | < 0.001 | ||||||||||||
Men | 46.5 | 9.6 | 16.3 | 34.3 | 45 | 51.9 | 60.3 | 66.7 | 67.1 | 69 | 75.4 | 76.9 | |
Women | 53.5 | 90.4 | 83.7 | 65.7 | 55 | 48.1 | 39.7 | 33.3 | 32.9 | 31 | 24.6 | 23.1 | |
Age(years) | 50.27 ± 15.04 | 41.64 ± 12.66 | 45.82 ± 14.84 | 50.09 ± 14.87 | 53.19 ± 15.14 | 52.84 ± 14.74 | 53.75 ± 14.50 | 53.18 ± 14.79 | 53.88 ± 15.47 | 54.69 ± 13.21 | 50.66 ± 14.96 | 51.97 ± 14.32 | < 0.001 |
BMI(kg/m2) | 23.38 ± 3.48 | 22.79 ± 3.46 | 22.75 ± 3.28 | 23.14 ± 3.42 | 23.31 ± 3.54 | 23.17 ± 3.37 | 23.49 ± 3.50 | 23.37 ± 3.32 | 23.38 ± 3.43 | 23.90 ± 3.62 | 24.37 ± 3.57 | 24.37 ± 3.48 | < 0.001 |
Glucose(mmol/L) | 4.87 ± 1.38 | 4.87 ± 0.84 | 4.87 ± 0.98 | 4.84 ± 1.06 | 4.87 ± 1.18 | 4.81 ± 1.23 | 4.89 ± 1.17 | 4.83 ± 1.46 | 4.90 ± 1.46 | 4.87 ± 1.75 | 4.92 ± 1.59 | 4.93 ± 2.16 | < 0.001 |
Insulin(µIU/ml) | 14.39 ± 22.32 | 12.81 ± 20.21 | 13.00 ± 15.58 | 12.94 ± 12.40 | 15.26 ± 32.60 | 15.00 ± 29.69 | 13.96 ± 14.33 | 15.35 ± 34.25 | 12.59 ± 8.83 | 16.05 ± 20.04 | 15.49 ± 19.39 | 16.69 ± 21.18 | < 0.001 |
LDL-C(mmol/L) | 2.98 ± 0.98 | 2.76 ± 0.83 | 2.85 ± 0.83 | 2.96 ± 0.91 | 3.06 ± 1.03 | 3.01 ± 0.92 | 3.06 ± 1.05 | 3.05 ± 0.96 | 3.09 ± 1.01 | 3.07 ± 0.96 | 3.01 ± 0.99 | 3.06 ± 1.15 | < 0.001 |
HDL-C(mmol/L) | 1.44 ± 0.48 | 1.50 ± 0.39 | 1.48 ± 0.36 | 1.48 ± 0.45 | 1.46 ± 0.42 | 1.45 ± 0.49 | 1.42 ± 0.62 | 1.39 ± 0.38 | 1.40 ± 0.40 | 1.46 ± 0.76 | 1.33 ± 0.39 | 1.34 ± 0.58 | < 0.001 |
TC(mmol/L) | 4.86 ± 1.01 | 4.56 ± 0.94 | 4.64 ± 0.91 | 4.78 ± 0.96 | 4.89 ± 0.98 | 4.87 ± 0.98 | 4.91 ± 1.00 | 4.96 ± 0.98 | 5.02 ± 1.09 | 5.07 ± 1.02 | 5.00 ± 0.98 | 5.14 ± 1.08 | < 0.001 |
TG(mmol/L) | 1.67 ± 1.47 | 1.28 ± 0.95 | 1.33 ± 1.12 | 1.41 ± 1.11 | 1.52 ± 1.05 | 1.58 ± 1.29 | 1.63 ± 1.06 | 1.81 ± 1.51 | 1.82 ± 1.61 | 1.99 ± 1.64 | 2.03 ± 1.61 | 2.43 ± 2.22 | < 0.001 |
Education(%) | < 0.001 | ||||||||||||
0–9 years | 76.3 | 76.7 | 76.9 | 76.4 | 78.8 | 76.5 | 75.4 | 78.5 | 75.7 | 77.4 | 72.9 | 73.4 | |
10–12 years | 18.8 | 19 | 19 | 18.2 | 15.5 | 17.8 | 20 | 19.2 | 17.8 | 17.8 | 20.8 | 21.4 | |
13 years | 4.9 | 4.3 | 4.1 | 5.4 | 5.7 | 5.7 | 4.7 | 2.3 | 6.6 | 4.9 | 6.3 | 5.2 | |
Smoking status(%) | < 0.001 | ||||||||||||
Never | 69.1 | 92.3 | 88.4 | 75.4 | 71.5 | 67.2 | 58.9 | 55.6 | 57.7 | 55.4 | 49.3 | 50.3 | |
Former | 3.2 | 1.1 | 1.8 | 2.8 | 3.6 | 3.3 | 4.5 | 4.5 | 5 | 4.9 | 4.3 | 4 | |
Current | 27.6 | 6.7 | 9.8 | 21.9 | 24.9 | 29.5 | 36.6 | 39.9 | 37.3 | 39.7 | 46.4 | 45.7 | |
Hypertension(%) | < 0.001 | ||||||||||||
No | 86.7 | 94.1 | 89.5 | 88.5 | 83.5 | 83.3 | 84.1 | 85.3 | 85.1 | 81.9 | 87 | 85.2 | |
Yes | 13.2 | 5.6 | 10.5 | 11.4 | 16.4 | 16.5 | 15.7 | 14.7 | 14.9 | 18.1 | 13 | 14.7 |