Table 6 Intraclass correlation coefficients for food frequency questionnaires completed at the beginning and end of 12 monthsâ€
| Â | FFQ 1 vs. FFQ 2 | |
|---|---|---|
| Â | Unadjusted r(CI) | Energy adjusted r(CI) |
Total Energy (kcal) | 0.87 (0.78, 0.92) | Â |
Total Carbohydrate | 0.85 (0.76, 0.91) | 0.76 (0.61, 0.85) |
Protein | 0.83 (0.73, 0.90) | 0.79 (0.66, 0.87) |
Total Fat | 0.85 (0.75, 0.90) | 0.74 (0.57, 0.84) |
   Total Saturated Fat | 0.78 (0.65, 0.87) | 0.50 (0.18, 0.69) |
   Total MUFA | 0.82 (0.71, 0.89) | 0.79 (0.66, 0.87) |
   Total PUFA | 0.75 (0.60, 0.80) | 0.54 (0.24, 0.71) |
Linoleic acid | 0.75 (0.59, 0.85) | 0.68 (0.48, 0.80) |
Linolenic acid | 0.73 (0.55, 0.83) | 0.55 (0.26, 0.72) |
Cholesterol | 0.80 (0.67, 0.87) | 0.80 (0.67, 0.87) |
Calcium | 0.85 (0.75, 0.91) | 0.79 (0.66, 0.87) |
Iron | 0.90 (0.84, 0.94) | 0.68 (0.47, 0.80) |
Retinol | 0.73 (0.56, 0.83) | 0.74 (0.57, 0.84) |
Beta-carotene (ug) | 0.71 (0.53, 0.82) | 0.75 (0.59, 0.85) |
Vitamin E | 0.77 (0.56, 0.82) | 0.78 (0.58, 0.85) |
Folate | 0.88 (0.80, 0.92) | 0.77 (0.62, 0.86) |
Vitamin K | 0.72 (0.54, 0.83) | 0.72 (0.54, 0.83) |
Zinc | 0.79 (0.65, 0.87) | 0.79 (0.66, 0.87) |
Total dietary fiber | 0.82 (0.70, 0.90) | 0.84 (0.68, 0.90) |
Alcohol | 0.76 (0.45, 0.89) | 0.68 (0.27, 0.86) |