Development and validation of an interview-administered FFQ for assessment of vitamin D and calcium intakes in Finnish women

Itkonen, Suvi T.; Erkkola, Maijaliisa; Skaffari, Essi; Saaristo, Pilvi; Saarnio, Elisa; Viljakainen, Heli; Kärkkäinen, Merja; Lamberg‐Allardt, Christel

doi:10.1017/s0007114515005474

Cited by 14 publications

(24 citation statements)

References 26 publications

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“…This study shows that vitamin D and calcium intake in 5- to 7-year-old children, assessed with a new short food frequency questionnaire, correlates [ 27 ] well with a written three-day food record as well as with the biomarker S-25(OH)D. Since the study was conducted during late fall and winter when there is not efficient sunlight for vitamin D absorption, S-25(OH)D is a reliable biomarker of dietary vitamin intake in the method of triad. Several statistical approaches to evaluate the validity of the SFFQ confirm that the SFFQ is a valid measure to assess vitamin D and calcium intake in young Swedish children and may be preferred compared to conventional dietary food registrations, since the latter usually requires registrations over several days to correctly capture the vitamin D intake [ 20 ].…”

Section: Discussionmentioning

confidence: 99%

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A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

et al. 2017

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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 μg/day, (limits of agreement (LOA) 5.7 and −4.6 μg/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.

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Section: Discussionmentioning

confidence: 99%

“…In children, FFQs have only been validated separately for calcium intake [ 30 , 31 , 32 ] or vitamin D intake in a long FFQ [ 33 ]. In addition, this is the first study using the biomarker S-25(OH)D to validate a food frequency in children using the method of triad to calculate the validity coefficient [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

et al. 2017

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“…However, low rates of fragility fracture are found in that country [1]. In contrast, intake averaged 1250 mg/day in a cohort of Finnish women [17].…”

Section: Calcium Intake At the Population Levelmentioning

confidence: 99%

Calcium in the prevention of postmenopausal osteoporosis: EMAS clinical guide

et al. 2018

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The recommended daily intake of calcium varies between 700 and 1200mg of elemental calcium, depending on the endorsing source. Although calcium can be derived either from the diet or supplements, the former source is preferred. Intake below the recommended amount may increase fragility fracture risk; however, there is no consistent evidence that calcium supplementation at, or above, recommended levels reduces risk. The addition of vitamin D may minimally reduce fractures, mainly among institutionalised people. Excessive intake of calcium, defined as higher than 2000mg/day, can be potentially harmful. Some studies demonstrated harm even at lower dosages. An increased risk for cardiovascular events, urolithiasis and even fractures has been found in association with excessive calcium intake, but this issue remains unresolved. In conclusion, an adequate intake of calcium is recommended for general bone health. Excessive calcium intake seems of no benefit, and could possibly be harmful.

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“…Wearing concealing clothing also contributes to an increased risk of vitamin D deficiency (4,7) . In Finland, high prevalence of S- 25 was observed in two recent studies of Somali (5,12) and Kurdish immigrants (5) . In contrast to the immigrants, sufficient vitamin D status was reported for the majority of Finnish adults in 2012 (10) .…”

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confidence: 94%

Vitamin D intake, serum 25-hydroxyvitamin D status and response to moderate vitamin D₃supplementation: a randomised controlled trial in East African and Finnish women

et al. 2018

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Insufficient vitamin D status (serum 25-hydroxyvitamin D (S-25(OH)D)0·05 for differences between ethnic groups). In conclusion, high prevalence of vitamin D insufficiency existed among East African women living in Finland, despite higher vitamin D intake than their Finnish peers. Moderate vitamin D3 supplementation was effective in increasing S-25(OH)D in both groups of women, and no ethnic differences existed in the response to supplementation.

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Development and validation of an interview-administered FFQ for assessment of vitamin D and calcium intakes in Finnish women

Cited by 14 publications

References 26 publications

A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

Calcium in the prevention of postmenopausal osteoporosis: EMAS clinical guide

Vitamin D intake, serum 25-hydroxyvitamin D status and response to moderate vitamin D₃supplementation: a randomised controlled trial in East African and Finnish women

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Development and validation of an interview-administered FFQ for assessment of vitamin D and calcium intakes in Finnish women

Cited by 14 publications

References 26 publications

A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

Calcium in the prevention of postmenopausal osteoporosis: EMAS clinical guide

Vitamin D intake, serum 25-hydroxyvitamin D status and response to moderate vitamin D3supplementation: a randomised controlled trial in East African and Finnish women

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Vitamin D intake, serum 25-hydroxyvitamin D status and response to moderate vitamin D₃supplementation: a randomised controlled trial in East African and Finnish women