Table 1.
Mean (SE of the mean), median (SE of the median) and percentage difference (usual intake versus Day-1 intake) for calcium, iron and zinc intake, by age group.
| Age 1–<3 Years n = 333 |
Age 3–<6 Years n = 514 |
Age 6–<10 Years n = 479 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nutrient | Usual Intake | Day-1 Intake | % Diff |
Usual Intake | Day-1 Intake | % Diff |
Usual Intake | Day-1 Intake | % Diff |
|
| Calcium (mg/day) | Mean (SE) | 423.3 (45.3) |
424.5 (19.1) |
−0.3 | 350.9 (6.4) |
348.5 (19.2) |
0.7 | 351.8 (13.6) |
352.2 (13.5) |
−0.1 |
| Median (SE) | 378.0 (39.2) |
339.0 (19.9) |
11.5 *** |
329.2 (4.4) |
288.3 (22.9) |
14.2 *** |
331.3 (15.0) |
299.9 (15.0) |
10.5 *** |
|
| Iron (mg/day) | Mean (SE) | 7.8 (0.5) |
7.7 (0.3) |
1.3 | 8.9 (0.1) |
8.9 (0.3) |
0.0 | 10.6 (0.1) |
10.6 (0.2) |
0.0 |
| Median (SE) | 7.3 (0.4) |
7.2 (0.3) |
1.4 ** |
8.8 (0.1) |
8.6 (0.3) |
2.3 ** |
10.3 (0.1) |
9.7 (0.2) |
6.2 ** |
|
| Zinc (mg/day) | Mean (SE) | 6.5 (0.4) |
6.4 (0.2) |
1.6 | 7.3 (0.1) |
7.3 (0.2) |
0.0 | 8.5 (0.2) |
8.5 (0.2) |
0.0 |
| Median (SE) | 6.2 (0.4) |
6.0 (0.2) |
3.3 * |
7.1 (0.1) |
6.8 (0.3) |
4.4 ** |
8.3 (0.1) |
7.9 (0.2) |
5.1 * |
|
Day-1 intake: The reported 24-h recall on the first visit for the total group. Usual intake: Long-term daily average intake as calculated using the NCI amount-only method [6]. EAR = Estimated Average Requirement [37]. Percentage difference of the usual intake relative to Day-1 intake was computed for means and medians as follows: % Diff = 100 × (Usual intake − Day-1 intake)/(Day-1 intake). There were no significant differences between the means of Day-1 intake and usual intake, t-test, p-values > 0.05. * p < 0.05; ** p < 0.01; *** p < 0.001: Significant difference between locations of Day-1 and usual intakes, Kruskal–Wallis test.