Table 1

Consumption of plain water (tap and bottled) in mL among children age 4-13y by socio-demographic group, NHANES 2005–2010
N Plain water Tap water (mL) Bottled water (mL)
All Children 4766 431.0 (13.1) 257.2 (12.4) 173.9 (9.4)
Age group
4-8y 2327 364.9 (13.5) 226.8 (14.8) 138.1 (10.3)
9-13y 2440 496.1 (19.4) 287.0 (17.8) 209.0 (12.4)
P-difference <0.001 0.009 <0.001
Gender
Boys 2398 423.1 (15.8) 269.6 (15.1) 153.5 (9.7)
Girls 2369 439.0 (17.1) 244.6 (16.6) 194.4 (13.5)
P-difference 0.43 0.21 0.006
Race/ethnicity
Mexican-American 1422 374.4 (15.6) 163.6 (13.9) 210.8 (12.2)
Other Hispanic* 408 417.0 (59.9) 185.9 (23.8) 231.1 (46.1)
Non-Hispanic White 1462 456.5 (23.0) 296.9 (20.8) 159.6 (13.6)
Non-Hispanic Black 1182 373.9 (16.8) 197.8 (15.5) 176.1 (13.4)
Other race – including mixed race* 293 461.4 (43.5) 295.5 (35.9) 165.9 (32.8)
P-difference1 0.012 <0.001 0.007
Family income-to-poverty ratio
<1 1403 375.0 (19.6) 224.3 (19.0) 150.8 (12.2)
1-1.99 1257 426.9 (26.3) 244.2 (26.0) 182.7 (18.0)
2-3.49 871 425.2 (25.6) 258.6 (19.0) 166.6 (18.1)
≥3.5 965 470.2 (32.3) 290.8 (28.8) 179.4 (16.9)
P-difference 0.08 0.26 0.35

Values presented are survey-weighted means and standard errors (SE) in parentheses.

*Interpret cautiously due to small numbers.

1P-value of difference omitting the two smaller categories was 0.015 indicating that among the groups with sufficient numbers, there is a significant difference in water consumption.

Drewnowski et al.

Drewnowski et al. Nutrition Journal 2013 12:85   doi:10.1186/1475-2891-12-85

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