Table 3.
Mean daily energy and nutrient intakes estimated by the web-based EatWellQ8 food frequency questionnaire and a paper-based food frequency questionnaire and general linear model results (N=46).
| Nutrient | EatWellQ8 FFQa, mean (SD) | PFFQb, mean (SD) | P valuec | P valued |
| Energy (kcal) | 2297 (779) | 1899 (505) | <.001e | N/Af |
| Total fat (g) | 92.1 (40.8) | 69.1 (23.4) | .12 | .12 |
| Total fat (%TEg) | 35.5 (7.8) | 32.4 (5.1) | .13 | .13 |
| SFAh (g) | 38.4 (17.9) | 26.9 (9.1) | .01 | .01 |
| SFA (%TE) | 14.9 (4.8) | 12.6 (2.7) | .01 | .01 |
| MUFAi (g) | 39.5 (19.5) | 26.4 (9.7) | <.001 | .001 |
| MUFA (%TE) | 15.1 (4.3) | 12.3 (2.3) | <.001 | .001 |
| PUFAj (g) | 16.1 (7.8) | 13.1 (6.5) | .64 | .58 |
| PUFA (%TE) | 6.2 (1.7) | 6.1 (1.8) | .93 | .96 |
| Omega 3 (g) | 0.1 (0.2) | 0.3 (0.3) | <.001 | <.001 |
| Protein (g) | 104 (41) | 93 (41) | .35 | .33 |
| Protein (%TE) | 18.2 (5.0) | 19.4(6.1) | .39 | .37 |
| Carbohydrate (g) | 280 (102) | 241 (70) | .53 | .53 |
| Carbohydrate (%TE) | 49.1 (10.5) | 51.2 (7.9) | .53 | .54 |
| Total sugars (g) | 125 (52) | 105 (32) | .56 | .53 |
| Total sugars (%TE) | 22.3 (8.8) | 22.6 (6.2) | .53 | .53 |
| Calcium (mg) | 1126 (542) | 933 (358) | .86 | .84 |
| Total folate (µg) | 323 (135) | 328 (116) | .01 | .01 |
| Iron (mg) | 13.5 (5.7) | 11.5 (4.0) | .48 | .49 |
| Total carotene (µg) | 5042 (3430) | 4781 (4325) | .82 | .82 |
| Riboflavin (mg) | 2.0 (0.9) | 1.8 (0.7) | .30 | .31 |
| Thiamin (mg) | 1.7 (0.7) | 1.5 (0.4) | .18 | .18 |
| Vitamin B6 (mg) | 2.4 (0.8) | 2.1 (0.8) | .77 | .77 |
| Vitamin B12 (µg) | 4.8 (2.8) | 5.5 (3.2) | <.001 | <.001 |
| Vitamin C (mg) | 163 (141) | 156 (98) | .67 | .68 |
| Vitamin A REk (µg) | 1054 (590) | 1110 (796) | .22 | .22 |
| Retinol (µg) | 237 (138) | 387 (452) | <.001 | <.001 |
| Vitamin D (µg) | 2.6 (2.0) | 2.3 (1.7) | .48 | .45 |
| Vitamin E (mg) | 12.7 (7.0) | 9.5 (3.9) | .44 | .45 |
| Sodium (mg) | 2701 (1058) | 2102 (771) | .21 | .21 |
aFFQ: food frequency questionnaire.
bPFFQ: paper-based food frequency questionnaire.
cControlled for energy.
dControlled for energy and gender.
eValue derived from paired sample t test.
fN/A: not applicable.
g%TE: percentage total energy.
hSFA: saturated fatty acid.
iMUFA: monounsaturated fatty acid.
jPUFA: polyunsaturated fatty acid.
kRE: retinol equivalent.