Table 3 Prevalence (%) of background variables and independent variables in the groups: control group CH, MH and CHMH

52.0^a

30.4^c

31.9^c

41.8^b

48.0^a

69.6^c

68.1^c

58.2^b

17.3^a

16.8^a,c

10.0^b,c

11.9^b

15.7^a

16.2^a

19.0^a

15.1^a

14.5^a

14.1^a

13.3^a

12.8^a

24.2^a

27.1^a,b

29.9^a,b

27.8^b

16.6^a

14.7^a

18.0^a

18.2^a

11.7^a

11.0^a

10.0^a

14.2^a

13.3^a

14.5^a

11.8^a

11.1^a

48.9^a

41.7^c

27.0^b

32.0^b

31.2^a

30.6^a

37.9^a,b

37.0^b

5.4^a

9.7^b

12.3^b

13.6^b

1.1^a

3.4^c

10.9^b

6.3^b

69.1^a

60.4^c

51.2^b,c

53.3^b

30.9^a

39.6^c

48.8^b,c

46.7^b

11.5^a

7.5^b

8.6^a,b

7.2^b

47.1^a

28.5^b

18.6^c

23.1^b,c

28.4^a

33.9^b

22.9^a

33.6^b

13.0^a

30.1^b

50.0^c

36.1^b

94.9^a

93.6^a,b

93.9^a,b

91.3^b

5.1^a

6.4^a,b

6.1^a,b

8.7^b