Table 4.
Mean daily food groups intakes and Pearson correlation coefficients in two FFQs in adolescents aged 15–17 years of the INMA-Granada study (n = 51).
| Food Groups (g/day) | FFQ1 1 | FFQ2 1 | p-Value 2 | Pearson Coefficients (FFQ1 vs. FFQ2) | |
|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | r 3 | r adj. 4 | ||
| Dairy products | 628 (424) | 485 (235) | 0.035 | 0.45 | 0.49 |
| Eggs | 27 (24) | 27 (19) | 0.921 | 0.19 | 0.10 |
| White Meat | 43 (49) | 52 (107) | 0.571 | 0.11 | 0.14 |
| Red Meat | 47 (41) | 55 (67) | 0.472 | 0.07 | 0.11 |
| Processed Meat | 120 (133) | 93 (78) | 0.203 | 0.40 | 0.52 |
| White Fish | 21 (19) | 19 (20) | 0.528 | 0.36 | 0.42 |
| Blue Fish | 42 (44) | 40 (38) | 0.820 | 0.33 | 0.35 |
| Seafood | 25 (40) | 19 (33) | 0.376 | 0.44 | 0.40 |
| Vegetables | 246 (244) | 215 (167) | 0.443 | 0.77 | 0.81 |
| Fruit | 376 (336) | 432 (366) | 0.418 | 0.38 | 0.44 |
| Nuts | 15 (23) | 14 (31) | 0.876 | 0.37 | 0.36 |
| Pulse | 77 (85) | 54 (38) | 0.078 | 0.11 | 0.13 |
| Cereals | 114 (83) | 103 (108) | 0.553 | 0.54 | 0.44 |
| Potatoes | 83 (83) | 92 (105) | 0.620 | 0.31 | 0.25 |
| Bread | 117 (67) | 127 (94) | 0.532 | 0.05 | 0.12 |
| Sweets and sugar | 69 (77) | 42 (39) | 0.023 | 0.39 | 0.44 |
| Sweetened beverages | 316 (304) | 315 (422) | 0.983 | 0.34 | 0.37 |
| Average of correlation coefficients | 0.33 | 0.35 | |||
1 FFQ1 and 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 food groups intakes were log-transformed; 4 r adj, correlation coefficient using food groups intakes adjusted for total energy; FFQ, food frequency questionnaire.