Naaman, R., Parrett, A. , Bashawri, D., Campo, I., Fleming, K., Nichols, B., Burleigh, E., Murtagh, J., Reid, J. and Gerasimidis, K. (2021) Assessment of dietary intake using food photography and video recording in free-living young adults: a comparative study. Journal of the Academy of Nutrition and Dietetics, 121(4), 749-761.e1. (doi: 10.1016/j.jand.2020.09.040) (PMID:33187931)
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Abstract
Background: Conventional methods of dietary assessment are prone to recall bias and place burden on participants. Objective: Our aim was to compare the performance of image-based dietary assessment (IBDA), including food photography (FP) and video recording (VR), with the criterion of weighed food records (WFR). Design: In this comparative study, participants captured meals using FP and VR before and after consumption, over 2 days. Food type and portion size were assessed using the images and videos. Energy and nutrient intakes (mean of 2 days) were compared against WFR. Participants/settings: Eighty-four healthy adults (mean [standard deviation] age = 29 [8] years), recruited through advertisement in Glasgow, UK, between January and August 2016 were enrolled in the study. Eighty participants (95%) (mean [standard deviation] age = 28 [7] years) completed the study and were included in the analysis. Main outcome measures: Agreement in estimated energy and nutrient intake between WFR and IBDA. The IBDA method feasibility was evaluated using a questionnaire. Inter-rater and intra-rater reliability were assessed. Statistical analysis performed: The performance of the IBDA methods against WFR and their inter and intra-rater reliability were tested with Bland-Altman plots and Spearman correlations. Intra-class agreement between methods was assessed using κ statistics. Results: Inter-rater reliability was strong for both IBDA methods in estimating energy intake (ρ-coefficients: FP = 0.80; VR = 0.81). There was no difference in the agreement between the 2 assessors. Intra-rater reliability was high. FP and VR underestimated energy intake by a mean (95% agreement limits) of –13.3% (–56.4% and 29.7%) and –4.5% (–45.5% and 36.4%), respectively. IBDA demonstrated moderate-to-strong correlations in nutrient intake ranking, median ρ-coefficients for all nutrients: FP = 0.73 (interquartile range, 0.09) and VR = 0.82 (interquartile range, 0.02). Inter-class agreement of IBDA methods was moderate compared with the WFR in energy intake estimation. IBDA was more practical and enjoyable than WFR. Conclusions: IBDA and VR in particular demonstrated a moderate-to-strong ability to rank participants’ dietary intake, and considerable group and inter-class agreement compared with the WFR. However, IBDA was found to be unsuitable for assessment in individuals.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | NAAMAN, Roba Khalil and Nichols, Mr Ben and Gerasimidis, Professor Konstantinos and Parrett, Dr Alison |
Authors: | Naaman, R., Parrett, A., Bashawri, D., Campo, I., Fleming, K., Nichols, B., Burleigh, E., Murtagh, J., Reid, J., and Gerasimidis, K. |
College/School: | College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing |
Journal Name: | Journal of the Academy of Nutrition and Dietetics |
Publisher: | Elsevier |
ISSN: | 2212-2672 |
ISSN (Online): | 2212-2680 |
Published Online: | 10 November 2020 |
Copyright Holders: | Copyright © 2020 by the Academy of Nutrition and Dietetics |
First Published: | First published in Journal of the Academy of Nutrition and Dietetics 121(4): 749-761.e1 |
Publisher Policy: | Reproduced under a Creative Commons license |
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