Table 5

Agreement between INTERVIEW and OBSERVATION (n = 26)
INTERVIEW mean ± SD OBSERVATION mean ± SD % Mean difference (95% CI) p-value for % Mean difference ICC (95% CI) p-value for ICC
Energy (kcal) 3266 ± 1388 3042 ± 1262 6.4 (-2.7 to 16.2) 0.165 0.92 (0.83-0.97) 0.000
Carbohydrate (g) 436 ± 198 426 ± 159 0.8 (-8.2 to 10.6) 0.866 0.91 (0.80-0.96) 0.000
Protein (g) 143 ± 61 139 ± 63 6.4 (-5.4 to 19.5) 0.287 0.92 (0.82-0.96) 0.000
Total Fat (g) 110 ± 54 91 ± 53 26.0 (8.2 to 46.7)* 0.005 0.83 (0.54-0.93) 0.000
Water (mL) 4039 ± 1209 4212 ± 1275 -4.9 (-12.6 to 3.5) 0.232 0.86 (0.70-0.94) 0.000
Sodium (mg) 4507 ± 2504 4254 ± 2117 1.2 (-10.6 to 14.5) 0.849 0.92 (0.82-0.96) 0.000
Calcium (mg) 1192 ± 635 1052 ± 566 15.3 (-1.6 to 35.0) 0.075 0.88 (0.74-0.95) 0.000
Iron (mg) 20.3 ± 9.9 18.0 ± 8.0 12.2 (-0.5 to 26.6) 0.059 0.90 (0.77-0.96) 0.000

Data are from the 26 subjects who completed INTERVIEW and OBSERVATION in the TEST session. Values for INTERVIEW and OBSERVATION (shown as mean ± SD) are untransformed data. Paired comparisons and ICC analyses were conducted on transformed (natural log) data. Asterisks indicate where the mean differences are statistically significant. ICC p-values are listed as 0.000 because they are all less than 0.0005. INTERVIEW, 24-h dietary recall interview using USDA 5-step multiple-pass method; ICC, intraclass correlation; OBSERVATION, direct dietary observations by dietitians.

Baker et al.

Baker et al. Nutrition Journal 2014 13:41   doi:10.1186/1475-2891-13-41

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