MEDI231 Lecture Notes - Lecture 11: Observational Error, Clinical Trial, Foodworks
6 Aug 2018
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Describe the common tools for assessing dietary intake. Why are we interested in what people eat. Identifying nutrients/food at risk (too high or too high: monitoring trends in food and nutrient consumption, developing food and nutrient policy, planning nutritional intervention, evaluating effects of nutrition intervention/promotion, studying diet-disease relationships. What is dietary methodology: study the procedure/tools used to measure a persons dietary intake dietary analysis, common types, ffq, 24-hr recall, diet history interview, food record, strengths and limitatins within practice, never 100% accurate. Format: completed, face to face, telephone, online, via app, the respondent is asked for more detailed information than first reclled, e. g. Automated multiple pass method: quick list, forgotten foods, time and occasion, detail cycle, final probe, fast, inexpensive, provides snapshot of intake for larger population, but, may o(cid:373)it (cid:858)occasio(cid:374)al foods(cid:859, relied on memory. Interviewer skills: relies on memory, diet history interviews in different settings, clinical (e. g. outpatient), research.
