Table 4 Comparisons of age-specific prevalence rates of obesity and parental diabetes between ever chewers and never-chewers of betel nut in incident cases of newly diagnosed type 2 diabetes mellitus during the years 1992-1996

1992

< 40

36.4 vs.24.2

9.1 vs. 12.1

30.0 vs. 60.6

40-49

37.9 vs. 38.0

6.1 vs. 2.6

53.2 vs. 52.4

50-59

39.3 vs. 33.7

9.3 vs. 4.6

38.6 vs. 40.9

60-69

37.1 vs. 36.6

6.4 vs. 4.2

20.5 vs. 22.8

≥70

37.5 vs. 32.6

4.8 vs. 1.9

8.5 vs. 10.5

1993

< 40

36.8 vs. 48.7

5.3 vs. 10.3

52.6 vs. 65.7

40-49

45.8 vs. 41.7

12.0 vs. 6.0

50.6 vs. 48.4

50-59

44.7 vs. 37.5

4.8 vs. 3.6

33.7 vs. 39.3

60-69

39.4 vs. 37.9

5.1 vs. 3.5

23.9 vs. 22.1

≥70

33.0 vs. 32.4

4.2 vs. 2.7

8.9 vs. 8.6

1994

< 40

58.1 vs. 42.6

19.4 vs. 11.8

65.5 vs. 50.0

40-49

47.6 vs. 43.2

11.8 vs. 8.6

47.8 vs. 50.4

50-59

46.9 vs. 39.3*

5.4 vs. 6.0

32.2 vs. 36.2

60-69

39.4 vs. 41.6

6.9 vs. 5.6

19.6 vs. 19.4

≥70

47.5 vs. 38.1

5.1 vs. 4.4

11.2 vs. 7.9

1995

< 40

52.1 vs. 44.4

8.3 vs. 15.9

55.6 vs. 48.8

40-49

43.5 vs. 44.3

10.1 vs. 8.3

46.8 vs. 49.5

50-59

53.1 vs. 38.8*

7.5 vs. 5.7

37.2 vs. 34.5

60-69

39.8 vs. 42.2

5.8 vs. 5.0

16.5 vs. 19.9

≥70

41.7 vs. 36.8

6.0 vs. 3.0

9.0 vs. 6.2

1996

< 40

63.0 vs. 61.8

18.5 vs. 22.5

44.8 vs. 41.4

40-49

56.0 vs. 48.0

10.9 vs. 9.5

46.7 vs. 42.8

50-59

49.4 vs. 47.1

11.3 vs. 6.0*

39.1 vs. 35.2

60-69

45.0 vs. 44.1

10.0 vs. 5.6*

23.2 vs. 17.4

≥70

30.1 vs. 37.7

4.8 vs. 5.2

1.4 vs. 8.2*