Table 4 Mean ± (SD), mean difference, Intraclass Correlation Coefficients (ICC), Spearman correlation coefficients, weighted kappa (κw) and percent agreement for energy and nutrients as measured using FFQ-1 and FFQ-2 (n = 111)
Nutrients | Mean FFQ-1 | Mean FFQ-2 | ICC | Spearman’s r a | κw | Percent agreement (same & adjacent quartile) |
|---|---|---|---|---|---|---|
Energy (Kcal) | 2560.86 ± 822.32 | 2421.20 ± 793.40 | 0.71** | 0.77** | 0.61 | 92.79 |
Protein (g) | 81.71 ± 25.88 | 81.03 ± 30.33 | 0.65** | 0.65** | 0.51 | 84.68 |
Carbohydrate (g) | 351.87 ± 120.07 | 330.39 ± 113.17 | 0.68** | 0.64** | 0.62 | 93.69 |
Fat (g) | 96.47 ± 35.70 | 89.81 ± 33.39 | 0.71** | 0.65** | 0.69 | 91.89 |
Saturated fat (g) | 30.17 ± 12.47 | 28.25 ± 10.53 | 0.70** | 0.57** | 0.52 | 90.99 |
MUFA (g) | 34.87 ± 13.31 | 32.54 ± 13.26 | 0.69** | 0.56** | 0.59 | 92.79 |
PUFA (g) | 20.80 ± 10.35 | 18.96 ± 8.85 | 0.64** | 0.55** | 0.55 | 90.09 |
Trans-fatty acid (g) | 0.16 ± 0.16 | 0.14 ± 0.13 | 0.31** | 0.49** | 0.41 | 85.58 |
Calcium (mg) | 996.76 ± 365.68 | 975.27 ± 364.05 | 0.73** | 0.67** | 0.51 | 90.09 |
Iron (mg) | 19.09 ± 7.15 | 18.05 ± 7.82 | 0.70** | 0.68** | 0.55 | 90.09 |
Fiber (g) | 23.36 ± 9.60 | 20.51 ± 8.26 | 0.58** | 0.65** | 0.55 | 93.69 |
Sugar (g) | 113.47 ± 47.94 | 99.17 ± 39.70 | 0.62** | 0.52** | 0.58 | 92.79 |