Table 1 Pearson correlation coefficient between mean daily intakes of nutrients estimated by 7DWR and an FFQ
From: Validity of a food frequency questionnaire to assess nutritional intake among Sri Lankan adults
Energy and nutrient (n = 77) | Intake from 7-day diet diary | FFQ | r value | p value | ||
|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
Energy (kcal/d) | 1697.9 | 333.3 | 1794.1 | 397.6 | 0.39 | <0.001 |
Protein (g) | 53.4 | 12.9 | 50.1 | 11.0 | 0.26 | 0.02 |
Fat (g) | 39.4 | 9.9 | 46.1 | 12.9 | 0.17 | 0.14 |
Carbohydrate (g) | 292.4 | 65.9 | 303.9 | 75.7 | 0.47 | <0.001 |
Dietary fiber (g) | 14.1 | 5.4 | 21.8 | 9.4 | 0.32 | 0.005 |
PUFA (g) | 2.7 | 1.4 | 2.4 | 1.8 | 0.37 | <0.001 |
Cholesterol (mg) | 15.8 | 25.0 | 9.4 | 7.9 | 0.23 | 0.05 |
Vitamin A (μg) | 426.3 | 172.5 | 652.3 | 292.6 | 0.17 | 0.19 |
Vitamin E (mg) | 1.9 | 1.4 | 2.6 | 1.3 | 0.09 | 0.46 |
Vitamin B1 (mg) | 1.6 | 0.5 | 1.5 | 0.4 | 0.26 | 0.02 |
Vitamin B2 (mg) | 1.2 | 0.6 | 1.2 | 0.4 | 0.25 | 0.03 |
Vitamin B6 (mg) | 1.2 | 0.6 | 1.3 | 1.0 | 0.36 | 0.001 |
Folic acid (mg) | 39.0 | 16.5 | 45.5 | 21.7 | 0.46 | <0.001 |
Vitamin D (μg) | 7.2 | 7.6 | 7.6 | 7.8 | 0.29 | 0.01 |
Vitamin C (mg) | 33.9 | 21.4 | 67.9 | 42.3 | 0.21 | 0.07 |
Potassium (mg) | 1765.5 | 484.6 | 1963.2 | 577.2 | 0.26 | 0.02 |
Calcium (mg) | 540.7 | 145.2 | 677.4 | 229.4 | 0.33 | 0.004 |
Magnesium (mg) | 258.0 | 100.2 | 308.9 | 124.7 | 0.46 | <0.001 |
Phosphorus (mg) | 1020.3 | 225.3 | 1107.4 | 292.2 | 0.36 | 0.002 |
Sodium (mg) | 1812.7 | 790.2 | 1834.3 | 856.1 | 0.16 | 0.17 |
Iron (mg) | 16.7 | 9.2 | 19.7 | 9.7 | 0.25 | 0.03 |
Zinc (mg) | 7.1 | 1.8 | 7.3 | 2.3 | 0.12 | 0.28 |
% Energy from fata | 19.8 | 3.9 | 22.1 | 4.1 | 0.34 | 0.002 |
% Energy from proteina | 12.3 | 2.3 | 11.1 | 1.4 | 0.52 | 0.0001 |
% Energy from carbohydratea | 67.6 | 5.1 | 66.7 | 4.8 | 0.40 | 0.0001 |