Vitamin D Dietary Intake Questionnaire Validation Conducted among Young Polish Women.

Dominika Głąbska,Patrycja Sidor,Dariusz Włodarek,Dominika Guzek

doi:10.3390/nu8010036

Dominika Głąbska, Patrycja Sidor + Show 2 more

Open Access

https://doi.org/10.3390/nu8010036

Copy DOI

Journal: Nutrients	Publication Date: Jan 5, 2016
Citations: 56	License type: CC BY 4.0

Affiliation: Warsaw University of Life Sciences

Abstract

Due to inadequate intake of Vitamin D, identification of individuals characterised by the highest risk of deficiencies is one of the more crucial tasks for public health. The aim of the presented study was to assess the validity and reproducibility of the designed Vitamin D dietary intake questionnaire based on food frequency assessment—VIDEO-FFQ (VItamin D Estimation Only—Food Frequency Questionnaire) in a group of Polish women aged 20–30 years. Seventy-five participants kept a three-day dietary record and filled out the VIDEO-FFQ twice (immediately after the three-day dietary record and after six weeks). The assessment of validity and reproducibility was conducted by verifying standard errors of estimation, median differences, and percentages of individuals classified into tertiles, correlations and Bland-Altman plots. The Vitamin D intake for the majority of the surveyed women was inadequate as over 85% of them were characterised by values of intake lower than 5.0 μg per day. The results allowed concluding that a high accuracy of the VIDEO-FFQ was achieved. The required Bland-Altman index values lower than 5.0% were obtained, confirming satisfactory validity and reproducibility. The VIDEO-FFQ may be deemed a convenient practical tool for the estimation of Vitamin D intake in young women.

Highlights

For a long time the worldwide Vitamin D dietary intake has been observed as inadequate [1]
D intake for the majority of the group was inadequate, i.e., in each applied assessment over 85% of the group was characterised by intake values lower than the recommended 5.0 μg of cholecalciferol per day according to Polish recommendations at the Adequate Intake (AI) level
The results obtained were compared with RDA recommendations of the Institute of Medicine and an intake lower than the recommended 15.0 μg of cholecalciferol per day was observed for 100%, over 98%, and over 97% of the group in the case of FFQ1, FFQ2, and the three-day dietary record, respectively

Summary

Introduction

For a long time the worldwide Vitamin D dietary intake has been observed as inadequate [1]. The report of the European Food Safety Authority [2] indicated that the dietary intake of Vitamin D is commonly too low for women in European countries. Vitamin D dietary intake is reported to be significantly lower—e.g., in Poland, the daily average cholecalciferol intake was 3.3 μg for women [6]. It was indicated, in the European Nutrition and Health Report [7], that vitamin D intake is generally low in most age groups.

Results

Discussion

Conclusion