Table 3: Water Sources and Fluoride Exposure Among Study Participants

Variable Spanish English  p-value
N (%) N (%)
Home water supply
 Municipal 96 (82.1) 74 (59.7)  <0.0001
 Well 21 (17.9) 50 (40.3)
Fluoridated tap water
 Yes 93 (79.5) 60 (48.4)  0.0006
No 9 (7.7) 34 (27.4)
 Do not know 15 (12.8) 30 (24.2)
Glasses of water drunk per day 2.27 2.63 0.01
Drinking water source
Tap water 48 (41%) 93 (75%) <0.001
Bottled water 69 (59%) 31 (25%) <0.001
Use tap water to cook 109 (93%) 117 (94%) 0.57
Use fluoridated dentifrice 103 (88%) 108 (87%) 0.35

Chi-Square was used for categorical variables
Wilcoxon rank sum used for glasses of water drunk per day

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