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The validity of a structured interactive 24‐hour recall in estimating energy and nutrient intakes in 15‐month‐old rural Malawian children

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This study aimed to compare the nutritional intake values among 15‐month‐old rural Malawian children obtained by weighed food record (WFR) with those obtained by modified 24‐hour recall (mod 24‐HR), and to develop algorithm for adjusting mod 24‐HR values so as to predict mean intake based on WFRs. The study participants were 169 15‐month‐old children who participated in a clinical trial. Food consumption on one day was observed and weighed (established criterion) by a research assistant to provide the estimates of energy and nutrient intakes. On the following day, another research assistant, blinded to the direct observation, conducted the structured interactive 24‐hour recall (24‐HR) interview (test method). Paired t‐tests and scatter‐plots were used to compare intake values of the two methods. The structured interactive 24‐HR method tended to overestimate energy and nutrient intakes (each P < 0.001). The regression‐through‐the‐origin method was used to develop adjustment algorithms. Results showed that multiplying the mean energy, protein, fat, iron, zinc and vitamin A intake estimates based on the test method by 0.86, 0.80, 0.68, 0.69, 0.72 and 0.76, respectively, provides an approximation of the mean values based on WFRs.

Document Type: Research Article


Affiliations: Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi

Publication date: July 1, 2012


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