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Table 3 Prevalence of water fluoridation as a function of geographic region

From: Exposure to fluoridated water and attention deficit hyperactivity disorder prevalence among children and adolescents in the United States: an ecological association

 

1992

2000

2002

2004

2006

2008

Region

M

SD

M

SD

M

SD

M

SD

M

SD

M

SD

Northeast

39.6

22.36

49.39

22.60

50.79

22.0

49.78

19.25

50.30

19.43

50.13

21.39

Midwest

69.1

11.84

69.62

9.32

72.51

10.77

73.25

10.69

72.87

10.78

70.17

13.11

South

69.0

15.11

67.80

16.17

71.68

14.74

74.82

15.11

74.37

15.85

73.37

17.51

West

31.7

22.78

34.13

20.70

37.26

20.86

39.90

19.5

41.16

19.35

43.65

19.78

  1. Note. M, mean percentage of population receiving fluoridated water from public water systems in that year. SD, standard deviation. Northeast, n = 9, Midwest, n = 12, South, n = 17, West, n = 13.
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Environmental Health

ISSN: 1476-069X