Table 5. Spearman correlation coefficients of food groups and nutrients estimated from FFQs and 24-HRs.
variables | FFQ1 vs. 24-HRs | FFQ2 vs. 24-HRs | Mean a vs. 24-HRs | ||||||
Crude | Energy adjusted | De-attenuatedb | Crude | Energy adjusted | De-attenuatedb | Crude | Energy adjusted | De-attenuatedb | |
Food groups | |||||||||
Cereal (g) | 0.58 | 0.56 | 0.58 | 0.54 | 0.57 | 0.59 | 0.65 | 0.66 | 0.68 |
Pickled vegetable (g) | 0.16 | 0.23 | 0.26 | 0.17 | 0.10 | 0.11 | 0.25 | 0.23 | 0.26 |
Egg (g) | 0.26 | 0.45 | 0.49 | 0.19 | 0.31 | 0.34 | 0.25 | 0.42 | 0.46 |
Meat (g) | 0.53 | 0.32 | 0.36 | 0.44 | 0.20 | 0.22 | 0.56 | 0.31 | 0.35 |
Fish and shellfish (g) | 0.39 | 0.33 | 0.36 | 0.43 | 0.19 | 0.21 | 0.47 | 0.31 | 0.34 |
Milk (g) | 0.21 | 0.34 | 0.37 | 0.24 | 0.32 | 0.35 | 0.30 | 0.42 | 0.46 |
Snack and nut (g) | 0.49 | 0.49 | 0.52 | 0.46 | 0.49 | 0.52 | 0.52 | 0.52 | 0.55 |
Bean (g) | 0.45 | 0.38 | 0.41 | 0.42 | 0.34 | 0.37 | 0.48 | 0.42 | 0.46 |
Vegetable (g) | 0.22 | 0.10 | 0.11 | 0.30 | 0.14 | 0.16 | 0.32 | 0.16 | 0.18 |
Fruit (g) | 0.59 | 0.54 | 0.66 | 0.59 | 0.52 | 0.64 | 0.68 | 0.63 | 0.77 |
Oil (g) | 0.09 | 0.03 | 0.03 | 0.20 | 0.12 | 0.13 | 0.18 | 0.10 | 0.11 |
Nutrients | |||||||||
Energy (Kcal) | 0.59 | − | − | 0.56 | − | − | 0.64 | − | − |
Protein (g) | 0.58 | 0.35 | 0.38 | 0.58 | 0.22 | 0.23 | 0.63 | 0.34 | 0.36 |
Fat (g) | 0.48 | 0.27 | 0.29 | 0.45 | 0.29 | 0.31 | 0.55 | 0.36 | 0.38 |
Fiber (g) | 0.20 | 0.05 | 0.05 | 0.30 | 0.17 | 0.19 | 0.29 | 0.12 | 0.13 |
Carbohydrate (g) | 0.42 | 0.57 | 0.59 | 0.42 | 0.54 | 0.56 | 0.49 | 0.62 | 0.64 |
Vitamin A (µg) | 0.29 | 0.16 | 0.18 | 0.24 | 0.09 | 0.10 | 0.33 | 0.16 | 0.18 |
Carotene (µg) | 0.24 | 0.12 | 0.14 | 0.20 | 0.11 | 0.12 | 0.28 | 0.14 | 0.16 |
Thiamin (mg) | 0.40 | 0.30 | 0.33 | 0.45 | 0.29 | 0.31 | 0.47 | 0.35 | 0.38 |
Riboflavin (mg) | 0.47 | 0.17 | 0.19 | 0.46 | 0.19 | 0.21 | 0.51 | 0.22 | 0.24 |
Niacin (mg) | 0.51 | 0.29 | 0.32 | 0.55 | 0.18 | 0.20 | 0.59 | 0.28 | 0.30 |
Vitamin E (mg) | 0.39 | 0.25 | 0.27 | 0.39 | 0.28 | 0.30 | 0.47 | 0.33 | 0.35 |
Sodium (mg) | 0.26 | 0.28 | 0.31 | 0.27 | 0.20 | 0.22 | 0.34 | 0.32 | 0.35 |
Calcium (mg) | 0.44 | 0.13 | 0.14 | 0.38 | 0.14 | 0.15 | 0.49 | 0.18 | 0.20 |
Iron (mg) | 0.55 | 0.18 | 0.19 | 0.53 | 0.08 | 0.09 | 0.59 | 0.17 | 0.18 |
Vitamin C (mg) | 0.25 | 0.16 | 0.18 | 0.28 | 0.14 | 0.15 | 0.32 | 0.20 | 0.22 |
Cholesterol (mg) | 0.44 | 0.37 | 0.40 | 0.43 | 0.38 | 0.41 | 0.48 | 0.41 | 0.45 |
mean of FFQ1 and FFQ2.
data were energy-adjusted.