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Br J Nutr. 2018 Dec;120(11):1262-1271. doi: 10.1017/S0007114518002374. Epub 2018 Oct 23.

Comparison of an interactive 24-h recall and weighed food record for measuring energy and nutrient intakes from complementary foods among 9-10-month-old Malawian infants consuming lipid-based nutrient supplements.

Author information

1
1Department of Population Health,London School of Hygiene and Tropical Medicine,London WC1E 7HT,UK.
2
2Intake - Centre for Dietary Assessment,FHI 360,Washington,DC 20009,USA.
3
3Centre for Child Health Research,School of Medicine and Life Sciences,University of Tampere,Tampere FI-33014,Finland and Tampere University Hospital,FI-33521 Tampere,Finland.
4
4Department of Infectious Disease Epidemiology,London School of Hygiene and Tropical Medicine,London WC1E 7HT,UK.
5
5Department of Public Health,School of Public Health and Family Medicine,University of Malawi,College of Medicine, Private Bag 360, Blantyre 3,Malawi.
6
6Department of Medical Statistics,London School of Hygiene and Tropical Medicine,London WC1E 7HT,UK.

Abstract

Fortifying complementary foods with lipid-based nutrient supplements (LNS) may improve energy and nutrient intakes of infants at risk for undernutrition. We aimed to determine the relative validity of an interactive 24-h recall (i-24-HR) for assessing the impact of an LNS intervention on dietary intakes of energy and nutrients among rural Malawian 9-10-month-old infants (n 132) participating in the International Lipid-Based Nutrient Supplements Dose (iLiNS-DOSE) trial. Dietary data were collected for the same day via i-24-HR and weighed food records. Inter-method agreements were estimated overall and by intervention group, using Bland-Altman plots and paired t tests; measurement error models (differential error); and percentage of food omissions and intrusions were estimated. Overall, inter-method differences in mean intakes of energy and most nutrients were not significant. When stratified by group, recalled energy intakes were under-estimated (-368 kJ; P=0·01) in the control but not in the intervention group (-42 kJ; P=0·6). This differential reporting error was related to an over-estimation of recalled LNS (8·1 v. 4·5 g; P30 % eating occasions) omissions were milk/fish/eggs, starchy roots/vegetables and sweetened snacks. Common intrusions were milk/yogurt. Starchy staples and LNS were recalled when consumed (>85 %) (i.e. matched). These results emphasise the importance of considering differential error when interpreting dietary results in LNS trials.

KEYWORDS:

LNS lipid–based nutrient supplements; LOA limits of agreement; WFR weighed food records; i-24-HR interactive 24-h recall; iLiNS-DOSE International Lipid–based Nutrient Supplements Dose; 24-h Recall; Dietary assessment; Infants; Lipid-based nutrient supplements; Weighed records

PMID:
30350761
DOI:
10.1017/S0007114518002374
[Indexed for MEDLINE]
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