Table 3.
Mean daily nutrient intakes and Pearson correlation coefficients in two FFQs in children aged 7–9 years of the INMA-Valencia study (n = 156).
| Nutrient Intakes (units/day) | FFQ1 1 | FFQ2 1 | p-Value 2 | Pearson Coefficient Correlations between FFQ1 and FFQ2 | % of Agreement 5 | |
|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | r 3 | r adj.4 | |||
| Energy (kcals/day) | 1953 (458) | 1962 (410) | 0.852 | 0.34 | 65.4 | |
| Protein (g/day) | 87 (18) | 85 (17) | 0.344 | 0.29 | 0.48 | 62.8 |
| Total carbohydrates (g/day) | 245 (65) | 243 (60) | 0.698 | 0.36 | 0.40 | 68.6 |
| Dietary fiber (g/day) | 20.3 (6.1) | 21.1 (6.1) | 0.226 | 0.43 | 0.51 | 66.7 |
| Cholesterol | 286 (69) | 284 (69) | 0.849 | 0.43 | 0.47 | 71.8 |
| Total fat (g/day) | 73 (20) | 77 (20) | 0.125 | 0.35 | 0.32 | 67.3 |
| SFA (g/ day) | 25.7 (7.9) | 25.6 (7.6) | 0.903 | 0.34 | 0.42 | 62.2 |
| MUFA (g/day) | 28.2 (8.7) | 31.2 (9) | 0.004 | 0.33 | 0.24 | 59.6 |
| PUFA (g/day) | 12.6 (3.7) | 13.4 (4) | 0.101 | 0.42 | 0.49 | 67.9 |
| Omega 3 (g/day) | 1.3 (0.4) | 1.4 (0.4) | 0.411 | 0.43 | 0.57 | 67.9 |
| Omega 6 (g/day) | 11.1 (3.3) | 11.8 (3.7) | 0.083 | 0.42 | 0.47 | 67.9 |
| Trans fatty acid (g/day) | 1.2 (0.4) | 1.2 (0.4) | 0.386 | 0.32 | 0.42 | 75.6 |
| Retinol (μg/day) | 452 (216) | 440 (174) | 0.594 | 0.44 | 0.47 | 75.6 |
| α-carotene (μg/day) | 816 (647) | 908 (717) | 0.236 | 0.64 | 0.63 | 80.8 |
| β-carotene (μg/day) | 2721 (2038) | 3083(2259) | 0.138 | 0.65 | 0.65 | 81.4 |
| β-Cryptoxanthin (μg/day) | 159 (102) | 203 (145) | 0.002 | 0.54 | 0.49 | 71.8 |
| Lutein + Zeaxanthin (μg/day) | 1451 (780) | 1481 (939) | 0.758 | 0.54 | 0.55 | 73.7 |
| Lycopene (μg/day) | 2800 (1355) | 2942 (1682) | 0.412 | 0.44 | 0.45 | 70.5 |
| Vitamin B6 (mg/day) | 1.7 (0.7) | 1.7 (0.6) | 0.962 | 0.47 | 0.49 | 71.2 |
| Folate (μg/day) | 213 (50) | 222 (61) | 0.164 | 0.41 | 0.39 | 70.5 |
| Vitamin B12 (μg/day) | 6.4 (2.3) | 6.3 (1.9) | 0.497 | 0.39 | 0.42 | 69.2 |
| Vitamin C (mg/day) | 78 (41) | 95 (58) | 0.002 | 0.51 | 0.46 | 72.4 |
| Vitamin D (μg/day) | 4.4 (1.6) | 4.4 (1.5) | 0.789 | 0.47 | 0.54 | 69.9 |
| Vitamin E (mg/day) | 7.6 (2.3) | 8.4 (2.6) | 0.002 | 0.39 | 0.44 | 63.5 |
| Calcium (mg/day) | 1135 (344) | 1105 (310) | 0.429 | 0.25 | 0.35 | 65.4 |
| Iron (mg/day) | 13 (5.2) | 13 (4.5) | 0.942 | 0.45 | 0.46 | 72.4 |
| Magnesium (mg/day) | 284 (64) | 282 (64) | 0.752 | 0.31 | 0.43 | 64.7 |
| Potassium (mg/day) | 2730 (607) | 2731 (645) | 0.989 | 0.33 | 0.41 | 69.2 |
| Sodium (mg/day) | 2812 (703) | 2746 (552) | 0.355 | 0.30 | 0.43 | 64.7 |
| Zinc (mg/day) | 10.1 (2.6) | 9.8 (2.2) | 0.326 | 0.32 | 0.40 | 66.0 |
| Iodine (μg/day) | 196 (57) | 186 (55) | 0.112 | 0.48 | 0.59 | 73.1 |
| Average of correlation coefficients | 0.41 | 0.46 | 69.2 | |||
1 FFQ1 & FFQ2, the same FFQ was firstly administered at baseline (FFQ1) and secondly (FFQ2), between 9 to 12 months later; 2 p-value from paired t-tests; 3 r: coefficient correlations after nutrient crude intakes were log-transformed; 4 r adj: correlation coefficient using nutrient intakes adjusted for total energy; 5 Percentage of children classified in the same or an adjacent quintile in nutrient crude intakes; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids; all correlation coefficients were statistically significant, p < 0.01.