Table 2 Prevalence (95% CI) of individual components of the metabolic syndrome based on the International Diabetes Federation guidelines in southern Chinese aged 20 years or above by sex and urban/rural residence in 2010

Central obesity

Urban

21.3 (3.8, 38.9)

38.2 (20.7, 55.7)

< 0.001

Rural

17.1 (2.0, 32.1)

38.9 (0.0, 87.9)

< 0.001

p

0.42

0.95

Hypertension

Urban

61.0 (52.6, 69.3)

46.5 (44.4, 48.6)

< 0.001

Rural

57.9 (49.7, 66.1)

45.2 (36.0, 54.4)

< 0.001

p

0.27

0.55

Hypertriglyceridaemia

Urban

27.5 (19.9, 35.1)

20.4 (13.5, 27.3)

< 0.001

Rural

22.4 (16.3, 28.4)

13.8 (9.4, 18.1)

< 0.001

p

0.023

<0.001

Low HDL-cholesterol

Urban

64.0 (40.4, 87.7)

69.0 (61.9, 76.1)

0.17

Rural

62.5 (55.4, 69.5)

79.2 (78.0, 80.4)

< 0.001

p

0.79

< 0.001

Hyperglycaemia

Urban

76.2 (57.0, 95.4)

70.8 (58.4, 83.1)

0.009

Rural

47.7 (4.7, 90.8)

42.3 (2.8, 81.8)

< 0.001

p

0.0077

0.0029

MetSyn

Urban

19.8 (3.2, 36.3)

33.0 (16.6, 49.5)

< 0.001

Rural

14.1 (2.5, 25.7)

29.3 (0.0, 63.7)

< 0.001

p

0.22

0.68

MetSyn for all residents by sex

16.3 (6.8, 25.8)

30.9 (9.7, 52.0)

< 0.001