Table 3.
Unadjusted correlation coefficients and cross-classification of quartiles of mean energy and nutrient intakes derived from repeat measures of the online Food4Me FFQ (N=100).
| Nutrienta | Correlationb | Quartiles, % | |||
|
|
|
Exact agreementc | Exact agreement plus adjacentd | Disagreemente | Extreme disagreementf |
| Energy (kcal) | .77g | 57 | 90 | 9 | 1 |
| Total fat (g) | .81 | 64 | 92 | 8 | 0 |
| Total fat (%TE) | .72 | 56 | 91 | 7 | 2 |
| SFA (g) | .81 | 60 | 91 | 9 | 0 |
| SFA (%TE) | .70 | 46 | 88 | 12 | 0 |
| MUFA (g) | .80 | 51 | 96 | 4 | 0 |
| MUFA (%TE) | .70 | 53 | 89 | 10 | 1 |
| PUFA (g) | .78 | 51 | 95 | 3 | 2 |
| PUFA (%TE) | .68 | 45 | 92 | 6 | 2 |
| Omega 3 (g) | .78 | 58 | 91 | 9 | 0 |
| Protein (g) | .80 | 56 | 88 | 12 | 0 |
| Protein (%TE) | .73 | 59 | 93 | 7 | 0 |
| Carbohydrate (g) | .74 | 53 | 96 | 4 | 0 |
| Carbohydrate (%TE) | .73 | 62 | 89 | 9 | 2 |
| Total sugars (g) | .77 | 66 | 94 | 4 | 2 |
| Total sugars (%TE) | .69 | 61 | 88 | 11 | 1 |
| Alcohol (g) | .90 | 70 | 96 | 4 | 0 |
| Calcium (mg) | .73 | 55 | 92 | 7 | 1 |
| Total folate (µg) | .74 | 53 | 93 | 6 | 1 |
| Iron (mg) | .75 | 53 | 95 | 4 | 1 |
| Total carotene (µg) | .76 | 60 | 90 | 10 | 0 |
| Riboflavin (mg) | .73 | 56 | 90 | 8 | 2 |
| Thiamin (mg) | .71 | 51 | 91 | 6 | 3 |
| Vitamin B6 (mg) | .72 | 56 | 89 | 10 | 1 |
| Vitamin B12 (µg) | .73 | 64 | 95 | 5 | 0 |
| Vitamin C (mg) | .72 | 60 | 95 | 5 | 0 |
| Vitamin A (RE) (µg) | .90 | 74 | 98 | 2 | 0 |
| Retinol (µg) | .67 | 50 | 90 | 7 | 3 |
| Vitamin D (µg) | .65 | 52 | 87 | 12 | 1 |
| Vitamin E (mg) | .75 | 56 | 91 | 7 | 2 |
| Salt (g) | .78 | 57 | 90 | 8 | 2 |
aMUFA: monounsaturated fatty acids; PUFA: polyunsaturated fatty acids; RE: retinol equivalents; SFA: saturated fatty acids; TE: total energy.
bCorrelation is significant at the .01 level (2-tailed) for all nutrients analyzed.
cExact agreement, % of cases cross-classified into the same quartile.
dExact agreement plus adjacent, % of cases cross-classified into the same or adjacent quartile.
eDisagreement, % of cases cross-classified 2 quartiles apart.
fExtreme disagreement, % of cases cross-classified into extreme quartiles.
gPearson correlation.