Validation of a food-frequency questionnaire for assessing vitamin intake of Japanese women in early and late pregnancy with and without nausea and vomiting
| Autor: | Haruhiko Sago, Naho Morisaki, Takeo Fujiwara, Kohei Ogawa, Minatsu Kobayashi, Seung Chik Jwa |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Vitamin medicine.medical_specialty FFQ2 second FFQ between 22 and 35 weeks of gestation Vomiting Nausea Endocrinology Diabetes and Metabolism medicine.medical_treatment Physiology 03 medical and health sciences chemistry.chemical_compound Pregnancy 25(OH)D 25-hydroxyvitamin D Internal medicine Validation medicine Vitamin D and neurology Vitamin B12 030109 nutrition & dietetics Nutrition and Dietetics NCCHD National Center for Child Health and Development NVP (–) participants whose food consumption had not decreased Vitamin C business.industry Vitamin E Food-frequency questionnaires Vitamins medicine.disease NVP nausea and vomiting during pregnancy Endocrinology chemistry FFQ1 first FFQ between 5 and 15 weeks of gestation medicine.symptom business NVP (+) participants who reported their dietary intake was reduced by NVP Research Article Food Science |
| Zdroj: | Journal of Nutritional Science |
| ISSN: | 2048-6790 |
| Popis: | Maternal vitamin intake during pregnancy is crucial for pregnancy outcomes and the child's subsequent health. However, there are few valid instruments for assessing vitamin intake that address the effects of nausea and vomiting during pregnancy (NVP). This study aimed to investigate the validity of a FFQ concerning vitamin intake during early and late pregnancy with and without NVP. The participants comprised 200 Japanese pregnant women who completed the FFQ and from whom blood samples were taken in early and late pregnancy. Energy-adjusted dietary vitamin intakes (vitamin C, folate, vitamin B6, vitamin B12, vitamin A, vitamin E and vitamin D) from FFQ were compared with their blood concentrations. A subgroup of women with NVP was investigated. In early pregnancy, significant correlations between FFQ and biomarkers were observed for vitamin C (r0·27), folate (r0·18) and vitamin D (r0·26) in women with NVP and for vitamin A (r0·18), vitamin B12(r0·24) and vitamin D (r0·23) in women without NVP. No significant correlations were observed in either group for vitamins B6or E. In late pregnancy, similar significant associations were observed for vitamin C (r0·27), folate (r0·22), vitamin B6(r0·18), vitamin B12(r0·27) and vitamin A (r0·15); coefficients were higher among women without NVP. Our study demonstrates that the FFQ is a useful tool for assessing intake of several important vitamins in early and late pregnancy regardless of NVP status. |
| Databáze: | OpenAIRE |
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