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Self-administered semiquantitative food frequency questionnaires: patterns, predictors, and interpretation of omitted items
BACKGROUND: Food items on a self-administered food frequency questionnaire (FFQ) may be left blank because the food was not consumed, because of difficulties remembering the frequency or amount of intake, or due to an oversight. METHODS: We explored the predictors and frequency of consumption of omi...
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| Huvudupphovsmän: | , |
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| Materialtyp: | Artigo |
| Språk: | Inglês |
| Publicerad: |
2009
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| Ämnen: | |
| Länkar: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3935217/ https://ncbi.nlm.nih.gov/pubmed/19106799 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1097/EDE.0b013e3181931515 |
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