Table 3.
The Vitamin D intake for the analysed group calculated using three-day dietary record and VIDEO-FFQ conducted twice (FFQ1, FFQ2), accompanied by percentages of individuals characterized by adequate or inadequate intake in comparison with the Polish recommendations at the AI level [28].
| Category | 3-Day Dietary Record | FFQ1 | FFQ2 | |
|---|---|---|---|---|
| Mean (μg) | 2.57 | 3.24 | 3.25 | |
| SD (μg) | 3.04 | 2.13 | 3.11 | |
| Median (μg) | 1.58 * | 2.70 * | 2.68 * | |
| Minimum (μg) | 0.02 | 0.53 | 0.36 | |
| Maximum (μg) | 17.2 | 12.9 | 26.5 | |
| Percentage of individuals characterised by | adequate intake (%) | 12.0 | 13.3 | 12.0 |
| inadequate intake (%) | 88.0 | 86.7 | 88.0 | |
* distribution different than normal (verified using Shapiro-Wilk test—p ≤ 0.05); FFQ1—VIDEO-FFQ filled out immediately after conducting a three-day dietary record; FFQ2—VIDEO-FFQ filled out 6 weeks after FFQ1.