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Validity and reliability of an online self-report 24-h dietary recall method (Intake24): a doubly labelled water study and repeated-measures analysis.

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Peer-reviewed

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Article

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Authors

Foster, Emma 
Imamura, Fumiaki 
Hollidge, Stefanie E 
Westgate, Kate L 

Abstract

Online self-reported 24-h dietary recall systems promise increased feasibility of dietary assessment. Comparison against interviewer-led recalls established their convergent validity; however, reliability and criterion-validity information is lacking. The validity of energy intakes (EI) reported using Intake24, an online 24-h recall system, was assessed against concurrent measurement of total energy expenditure (TEE) using doubly labelled water in ninety-eight UK adults (40-65 years). Accuracy and precision of EI were assessed using correlation and Bland-Altman analysis. Test-retest reliability of energy and nutrient intakes was assessed using data from three further UK studies where participants (11-88 years) completed Intake24 at least four times; reliability was assessed using intra-class correlations (ICC). Compared with TEE, participants under-reported EI by 25 % (95 % limits of agreement -73 % to +68 %) in the first recall, 22 % (-61 % to +41 %) for average of first two, and 25 % (-60 % to +28 %) for first three recalls. Correlations between EI and TEE were 0·31 (first), 0·47 (first two) and 0·39 (first three recalls), respectively. ICC for a single recall was 0·35 for EI and ranged from 0·31 for Fe to 0·43 for non-milk extrinsic sugars (NMES). Considering pairs of recalls (first two v. third and fourth recalls), ICC was 0·52 for EI and ranged from 0·37 for fat to 0·63 for NMES. EI reported with Intake24 was moderately correlated with objectively measured TEE and underestimated on average to the same extent as seen with interviewer-led 24-h recalls and estimated weight food diaries. Online 24-h recall systems may offer low-cost, low-burden alternatives for collecting dietary information.

Description

Keywords

ASA24®, automated self-administered 24-h dietary assessment tool, DLW, doubly labelled water, Dietary assessment, Doubly labelled water, EI, energy intake, ICC, intra-class correlation coefficient, Intake24, self-completed computerised dietary recall system based on multiple-pass 24-hour recall, NMES, non-milk extrinsic sugars, Online 24-h dietary recall, RQ, respiratory quotient, Reliability, Repeatability, TEE, total energy expenditure, UK adults, Validation, Adolescent, Adult, Aged, Aged, 80 and over, Body Mass Index, Child, Diet, Diet Records, Energy Intake, Energy Metabolism, Female, Humans, Internet, Male, Mental Recall, Middle Aged, Nutrition Assessment, Reproducibility of Results, Self Report, Surveys and Questionnaires, United Kingdom, Young Adult

Journal Title

J Nutr Sci

Conference Name

Journal ISSN

2048-6790
2048-6790

Volume Title

8

Publisher

Cambridge University Press (CUP)
Sponsorship
Medical Research Council (MC_UU_12015/1)
Department of Health (via National Institute for Health Research (NIHR)) (NF-SI-0617-10149)
Cambridge University Hospitals NHS Foundation Trust (CUH) (146281)
National Institute for Health and Care Research (IS-BRC-1215-20014)
Medical Research Council (MR/K02325X/1)
UK Medical Research Council support is acknowledged by S. B., S. E. H. and K. L. W. (MC UU 12015/3), by F. I. and N. G. F. (MC UU 12015/5), N. W. (MC UU 12015/1) and M. C. V. (MC U105960384). S. B., K. L. W., N. G. F. and N. W. also acknowledge National Institute for Health Research (NIHR) Biomedical Research Centre Cambridge: Nutrition, Diet, and Lifestyle Research Theme (IS-BRC-1215-20014). A. J. A. is funded by NIHR as an NIHR Research Professor and is a member of FUSE. Cost of isotope work was part funded by a grant from MedImmune Ltd to S. B., part funded by Newcastle University. Food Standards Scotland (previously Food Standards Agency Scotland) funded study 1 and study 3 which are included in the reliability analysis.