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Table 1 The general characteristics and serum lipid levels between the Bai Ku Yao and Han populations

From: Association of methylenetetrahydrofolate reductase C677T polymorphism and serum lipid levels in the Guangxi Bai Ku Yao and Han populations

Parameter Bai Ku Yao Han Chinese t(χ2) P
Number 780 686 - -
Male/female 381/399 342/344 0.148 0.714
Age (years) 40.24 ± 13.07 39.61 ± 14.67 0.866 0.386
Body mass index (kg/m2) 22.05 ± 2.31 22.51 ± 2.74 -3.467 0.001
Systolic blood pressure (mmHg) 116.55 ± 15.39 120.63 ± 15.94 -4.985 0.000
Diastolic blood pressure (mmHg) 74.78 ± 9.30 76.29 ± 10.04 -2.983 0.003
Pulse pressure (mmHg) 41.77 ± 11.44 44.40 ± 10.94 -4.478 0.000
Cigarette smoking [n(%)]     
   Nonsmoker 531(68.1) 514(74.9)   
   < 20 cigarettes/day 128(16.4) 52(7.6)   
   ≥20 cigarettes/day 121(15.5) 120(17.5) 26.451 0.000
Alcohol consumption [n(%)]     
   Nondrinker 443(56.8) 401(58.4)   
   < 25 g/day 240(30.8) 179(26.1)   
   ≥25 g/day 107(13.4) 106(15.5) 3.666 0.160
Total cholesterol (mmol/L) 4.26 ± 0.93 4.72 ± 0.93 -9.372 0.000
Triglyceride (mmol/L) 0.97(0.71) 1.01(0.77) -1.670 0.095
HDL-C (mmol/L) 1.65 ± 0.75 1.92 ± 0.50 -11.272 0.000
LDL-C (mmol/L) 2.50 ± 0.75 2.59 ± 0.72 -2.350 0.019
Apolipoprotein (Apo) AI (g/L) 1.29 ± 0.32 1.42 ± 0.23 -8.732 0.000
ApoB (g/L) 0.83 ± 0.23 0.90 ± 0.21 -6.656 0.000
ApoAI/ApoB 1.69 ± 0.78 1.64 ± 0.43 1.703 0.089
  1. HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol. The value of TG was presented as median (interquartile range). The difference between the two ethnic groups was determined by the Wilcoxon-Mann-Whitney test.