Table 1. Comparison of demographic, lifestyle characteristics and serum lipid levels between the Mulao and Han populations.
| Characteristics | Mulao | Han | t (χ2) | P-value |
|---|---|---|---|---|
| Number | 825 | 781 | ||
| Male/female | 354/471 | 307/474 | −1.466 | 0.143 |
| Age (years) | 49.18 ± 16.13 | 49.25 ± 16.21 | −0.082 | 0.934 |
| Height (cm) | 155.38 ± 8.05 | 154.6 ± 8.04 | 1.948 | 0.052 |
| Weight (kg) | 52.61 ± 9.41 | 53.43 ± 8.82 | −1.808 | 0.071 |
| Body mass index (kg/m2) | 21.72 ± 3.07 | 22.36 ± 3.48 | −3.894 | 1 × 10−4 |
| Waist circumference (cm) | 74.73 ± 8.59 | 75.03 ± 7.85 | −0.720 | 0.472 |
| Systolic blood pressure (mmHg) | 127.81 ± 21.12 | 128.03 ± 18.91 | −0.219 | 0.827 |
| Diastolic blood pressure (mmHg) | 80.35 ± 11.43 | 81.41 ± 11.19 | −1.871 | 0.061 |
| Pulse pressure (mmHg) | 47.46 ± 15.77 | 46.62 ± 13.95 | 1.130 | 0.259 |
| Cigarette smoking [n (%)] | ||||
| Nonsmoker | 649 (78.7) | 622 (79.7) | ||
| ≤20 Cigarette smoking/day | 145 (17.6) | 140 (17.9) | 0.877 | 0.381 |
| >20 Cigarette smoking/day | 31 (3.7) | 19 (2.4) | ||
| Alcohol consumption [n (%)] | ||||
| Nondrinker | 642 (77.8) | 623(79.8) | ||
| ≤25 g/day | 68(8.2) | 79(10.1) | 2.877 | 0.004 |
| >25 g/day | 115(13.9) | 79(10.1) | ||
| Blood glucose level (mmol/L) | 5.91 ± 1.56 | 5.92 ± 1.48 | −0.183 | 0.854 |
| Total cholesterol (mmol/L) | 4.94 ± 1.14 | 4.90 ± 1.00 | 0.702 | 0.483 |
| Triglyceride (mmol/L) | 1.04 (0.75) | 1.03 (0.85) | −0.432 | 0.666 |
| High-density lipoprotein cholesterol (mmol/L) | 1.74 ± 0.47 | 1.73 ± 0.52 | 0.404 | 0.687 |
| Low-density lipoprotein cholesterol (mmol/L) | 2.91 ± 0.86 | 2.84 ± 0.83 | 1.614 | 0.107 |
| Apolipoprotein (Apo) A1 (g/L) | 1.30 ± 0.40 | 1.33 ± 0.26 | −1.631 | 0.103 |
| ApoB (g/L) | 0.97 ± 0.58 | 0.84 ± 0.20 | 6.246 | <1 × 10−7 |
| ApoA1/ApoB | 1.62 ± 0.99 | 1.67 ± 0.50 | −1.296 | 0.195 |
The continuous variables were presented as the mean ± standard deviation and their differences between the two ethnic groups were tested by t-test. The categorical variables were presented as the frequencies or percentages and their differences between the groups were tested by Chi square tests. The values of triglyceride were presented as the median (interquartile range) and their differences between the ethnic groups were determined by the Wilcoxon-Mann-Whitney test.