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Table 1 Demographic characteristics of the population under study

From: Prevalence of dyslipidemia and gene polymorphisms of ABCB1 and SLCO1B1 in Han, Uygur, Kazak, Hui, Tatar, Kirgiz, and Sibe populations with coronary heart disease in Xinjiang, China

Demographic characteristics

Overall (n=2218)

Han (n=1044)

Uygur (n=828)

Kazak (n=113)

Hui (n=138)

Tatar (n=39)

Kirgiz (n=36)

Sibe (n=20)

P value

Male sex, n (%)

1609 (72.5)

754 (72.2)

609 (73.6)

78 (69.0)

96 (69.6)

28 (71.8)

28 (77.8)

16 (80.0)

0.827

Age (years, mean ± SD)

61.8 ± 10.8

63.1±11.4 a

60.6±10.0 b

59.3±10.1b

62.1±10.0 ab

60.6±11.5 ab

57.5±9.9 b

61.4±11.2ab

<0.001

BMI (kg/m2, mean ± SD)

28.0 ± 6.9

25.5±3.0 a

28.8 ± 3.9 b

28.3 ± 4.3 b

25.0±3.2a

28.1±4.3 b

27.2±6.8 ab

26.0±3.9a

0.002

Alcohol intake, n (%)

552 (24.9)

291 (27.9) a

186 (22.5) ab

30 (26.5) ab

19 (13.8) b

10 (25.6) ab

11 (30.6) ab

5 (25.0)ab

0.008

Smoking, n (%)

869 (39.2)

418 (40.0)

311 (37.6)

48 (42.5)

49 (35.5)

17 (43.6)

18 (50.0)

8 (40.0)

0.593

Hypertension

1416 (63.8)

630 (60.3) a

562 (67.9) a

91 (80.5) b

77 (55.8) a

29 (74.4) ab

20 (55.6) a

11 (55.0)a

<0.001

Diabetes mellitus

842 (38.0)

343 (32.9) a

367 (44.3) b

53 (46.9) b

52 (37.7) ab

14 (35.9) ab

9 (25.0) a

4 (20.0)a

<0.001

  1. BMI Body mass index; a, b and c denote the difference of ethnic groups by χ2 test at 0.05