Test (FFQ1) | Retest (FFQ2) | Within person differences (FFQ1-FFQ2) | Pearson | Spearman | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Nutrient | Mean | SDa | Mean | SD | Mean | 95% CIb | Mean ± 2 SDc | r | 95% CI | r s |
Energy (kJ) | 6571 | 1748 | 6400 | 1732 | 170.2 | (91.5, 249.0) | (-2801, 3142) | 0.64 | (0.60, 0.67) | 0.63 |
Protein (g) | 73.6 | 21.3 | 71.5 | 21.0 | 2.1 | (1.0, 3.1) | (-36, 40) | 0.60 | (0.56, 0.63) | 0.60 |
Total fat (g) | 60.0 | 20.1 | 58.4 | 19.4 | 1.6 | (0.7, 2.5) | (-32, 35) | 0.63 | (0.60, 0.66) | 0.64 |
Polyunsaturated fat (g) | 11.0 | 4.4 | 10.7 | 4.3 | 0.2 | (0.1, 0.4) | (-7, 8) | 0.65 | (0.62, 0.68) | 0.66 |
Total carbohydrate (g) | 179.4 | 49.9 | 174.0 | 50.9 | 5.4 | (3.2, 7.6) | (-77, 87) | 0.67 | (0.64, 0.70) | 0.67 |
Dietary fiber (g) | 19.6 | 6.2 | 18.6 | 5.9 | 1.0 | (0.7, 1.2) | (-9, 11) | 0.67 | (0.64, 0.70) | 0.66 |
Sugar (g) | 22.1 | 13.4 | 22.3 | 13.7 | -0.2 | (-0.8, 0.4) | (-21, 21) | 0.70 | (0.67, 0.72) | 0.71 |
Alcohol (g) | 2.2 | 3.2 | 2.8 | 3.5 | -0.6 | (-0.7, -0.5) | (-6, 4) | 0.72 | (0.69, 0.75) | 0.77 |
Retinol (REd, μg) | 1192 | 490 | 1142 | 482 | 50.3 | (29.3, 71.3) | (-742, 843) | 0.67 | (0.64, 0.70) | 0.66 |
Vitamin D (μg) | 12.4 | 9.0 | 12.3 | 8.5 | 0.1 | (-0.3, 0.5) | (-14, 14) | 0.69 | (0.66, 0.72) | 0.70 |
Vitamin E (mg) | 11.0 | 7.4 | 11.0 | 7.4 | 0.0 | (-0.3, 0.3) | (-10, 10) | 0.78 | (0.76, 0.80) | 0.73 |
Vitamin C (mg) | 106 | 50 | 96 | 48 | 9.6 | (7.5, 11.7) | (-69, 88) | 0.68 | (0.65, 0.70) | 0.69 |
Calcium (mg) | 624 | 246 | 600 | 248 | 23.2 | (10.8, 35.6) | (-445, 492) | 0.55 | (0.51, 0.59) | 0.60 |
% energy from protein | 19.2 | 2.9 | 19.1 | 3.0 | 0.0 | (-0.1, 0.2) | (-5, 5) | 0.70 | (0.67, 0.72) | 0.69 |
% energy from fat | 33.5 | 4.8 | 33.5 | 4.8 | 0.0 | (-0.3, 0.2) | (-8, 8) | 0.65 | (0.62, 0.68) | 0.65 |
% energy from carbohydrate | 46.5 | 5.8 | 46.3 | 5.9 | 0.3 | (0.0, 0.6) | (-10, 10) | 0.64 | (0.61, 0.67) | 0.63 |
% energy from sugar | 5.7 | 3.0 | 5.8 | 3.0 | -0.2 | (-0.3, -0.1) | (-5, 5) | 0.68 | (0.65, 0.71) | 0.68 |
% energy from alcohol | 1.0 | 1.6 | 1.4 | 1.8 | -0.3 | (-0.4, -0.2) | (-3, 2) | 0.74 | (0.72, 0.76) | 0.78 |