Table 2

Difference in energy and nutrient intakes and Pearson’s correlation coefficients between the FFQ and 24-hour recalls (N=128)
FFQ 24-hour recall Pearson's correlation coefficients
Nutrient Mean S.d. Mean S.d. p-valuea Crudea Adja,b Adj, deatta,b,c
Energy (kcal) 1914 542 1891 427 0.95 0.55 - 0.65
Total protein (g) 72 22 76 19 0.02 0.51 0.50 0.61
Vegetable protein (g) 28 9 28 8 0.64 0.67 0.63 0.86
Animal protein (g) 44 16 48 16 0.002 0.49 0.54 0.60
Total fat (g) 76 28 70 21 0.05 0.39 0.43 0.50
Saturated fatty acids (g) 28 12 26 9 0.38 0.44 0.57 0.55
Monounsaturated fatty acids (g) 26 9 23 8 0.02 0.33 0.33 0.46
Polyunsaturated fatty acids (g) 16 7 14 5 <.0001 0.44 0.44 0.57
Trans fatty acids (g) 2 1 2 1 0.004 0.42 0.44 0.61
Linoleic acid (g) 13 6 11 5 0.0002 0.43 0.40 0.56
Alpha linolenic acid (g) 1.32 0.80 0.86 0.45 <.0001 0.21 0.21 0.29
EPA (g) 0.06 0.06 0.09 0.20 0.21 0.39 0.40 0.48
DHA (g) 0.09 0.09 0.14 0.26 0.15 0.36 0.38 0.50
Cholesterol (mg) 194 79 203 90 0.44 0.42 0.41 0.75
Total carbohydrates (g) 206 58 209 55 0.49 0.70 0.66 0.80
Mono- disaccharides (g) 102 34 102 36 0.85 0.61 0.50 0.69
Polysaccharides (g) 104 34 106 29 0.11 0.70 0.68 0.87
Dietary fiber (g) 23 7 21 7 0.01 0.66 0.59 0.82
Ethanol (g) 16 14 17 16 0.68 0.78 0.78 0.95
Calcium (mg) 982 489 986 316 0.21 0.56 0.59 0.67
Vitamin B1 (mg) 1.23 0.36 1.15 0.43 0.00 0.58 0.45 0.86
Vitamin B2 (mg) 1.58 0.64 1.51 0.47 0.26 0.58 0.52 0.69
Vitamin B6 (mg) 1.65 0.49 1.69 0.48 0.33 0.52 0.35 0.67
Vitamin B12 (μg) 4.43 2.23 4.52 4.20 0.28 0.43 0.41 0.72
Vitamin D (μg) 3.97 1.87 4.05 2.40 0.90 0.49 0.47 0.74
Vitamin E (mg) 13 5 11 5 0.001 0.38 0.36 0.46
Vitamin C (mg) 94 39 99 46 0.79 0.51 0.49 0.68
Lycopene (μg) 2373 3900 2025 3718 <.0001 0.46 0.48 1.26
Retinol activity equivalent (μg) 1023 618 771 499 <.0001 0.54 0.46 0.87
Folic acid equivalent (μg) 196 65 184 55 0.03 0.53 0.35 0.87

a = Based on log-transformed values; b = Correlation coefficients were adjusted for energy intake; energy-adjusted intakes were calculated using the residual method; c = Correlation coefficients were de-attenuated (corrected for within-person variation [derived from crude, untransformed data] in the 24-hour recalls).

Streppel et al.

Streppel et al. Nutrition Journal 2013 12:75   doi:10.1186/1475-2891-12-75

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