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A Validation Study ...
A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children
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- Söderberg, Lotta (author)
- Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Lind, Torbjörn (author)
- Umeå University,Umeå universitet,Pediatrik
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- Åkeson, Pia Karlsland (author)
- Lund University,Lunds universitet,Preventiv pediatrik,Forskargrupper vid Lunds universitet,Preventive Paediatrics,Lund University Research Groups
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- Sandström, Ann-Kristin (author)
- Umeå University,Umeå universitet,Pediatrik
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- Hernell, Olle (author)
- Umeå University,Umeå universitet,Pediatrik
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- Öhlund, Inger (author)
- Umeå University,Umeå universitet,Pediatrik
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(creator_code:org_t)
- 2017-06-30
- 2017
- English.
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In: Nutrients. - : MDPI AG. - 2072-6643. ; 9:7
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Abstract
Subject headings
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- Vitamin D and calcium are essential nutrients with a range of biological effects of public health relevance. This study aimed to validate a short food frequency questionnaire (SFFQ) against a three-day food record (3D record), assessing the intake of vitamin D and calcium in Swedish children during wintertime. In a double-blinded, randomized food-based intervention study on the effect of feeding different daily doses of vitamin D supplement to 5-7-year-old children (n = 85), 79 (93%) participants completed SFFQ1 at baseline and SFFQ2 after the intervention, and 72 were informed to fill in a 3D record. The 28 (39%) children who completed the 3D record were included in this validation study. The baseline level of serum-25 hydroxy vitamin D [S-25(OH)D] was used as a biomarker. The correlation between all three instruments were moderate to strong. SFFQ2 and the 3D record correlated moderately to S-25(OH)D. Bland-Altman analysis showed that SFFQ2 overestimated vitamin D intake by on average 0.6 mu g/day, (limits of agreement (LOA) 5.7 and -4.6 mu g/day), whereas the intake of calcium was underestimated by on average 29 mg/day, (LOA 808 and -865 mg/day). Finally, the validity coefficient calculated for vitamin D using the method of triad was high (0.75). In conclusion, this SFFQ, assessed by a dietician, is a valid tool to assess dietary vitamin D and calcium intake in groups of young children.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
Keyword
- dietary assessments
- three-day food record
- child
- 25-hydroxy vitamin D
- 25-hydroxy vitamin D
- Child
- Dietary assessments
- Three-day food record
Publication and Content Type
- ref (subject category)
- art (subject category)
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