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Table 2 Prevalence data for fluorosis (accounting for combined drinking and cooking water sources)

From: Dental fluorosis in populations from Chiang Mai, Thailand with different fluoride exposures – Paper 1: assessing fluorosis risk, predictors of fluorosis and the potential role of food preparation

Combined water sources

Fluorosis prevalence (n)

 

TF Score

 

0

1+

2+

3+

4+

Drinking water <0.9 ppm F

39.4% (132)

60.6% (119)

25.1% (50)

10.1% (25)

2.7% (9)

Cooking water <0.9 ppm F

Drinking water >0.9 ppm F

(1)*

(0)*

(1)*

(0)*

(0)*

Cooking water <0.9 ppm F

Drinking water <0.9 ppm F

12.8% (20)

87.2% (70)

42.3% (31)

22.4% (17)

11.5% (18)

Cooking water >0.9 ppm F

Drinking water >0.9 ppm F

14.9% (10)

85.1% (20)

55.2% (12)

37.3% (9)

23.9% (16)

Cooking water >0.9 ppm F

Total study population

29.1% (163)

70.9% (209)

33.6% (91)

16.8% (54)

7.7% (43)

  1. *prevalence data not calculated owing to low numbers in cells.