Evidence map›Paper›PMID 25861429›Full record

ArticleNutrition research and practice2015

Usability of a smartphone food picture app for assisting 24-hour dietary recall: a pilot study.

Nobuko Hongu, Benjamin T Pope, Pelin Bilgiç, Barron J Orr, Asuka Suzuki, Angela Sarah Kim, Nirav C Merchant, Denise J Roe

Abstract read
In one paragraph

Article in Nutrition research and practice, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Nobuko HonguThe University of Arizona, Department of Nutritional Sciences, 406 Shantz Building, 1177 E. 4th Street, Tucson AZ 85721-0038, USA.
Benjamin T PopeThe University of Arizona, College of Public Health, Epidemiology and Biostatistics, USA.
Pelin BilgiçHacettepe University, Faculty of Health Sciences, Department of Nutrition and Dietetics, 06100, Sihhiye Ankara, Turkey.
Barron J OrrThe University of Arizona, Office of Arid Lands Studies, 1955 E. 6th Street, Suite #205, Tucson AZ 85721-5224, USA.
Asuka SuzukiThe University of Arizona, Department of Nutritional Sciences, 406 Shantz Building, 1177 E. 4th Street, Tucson AZ 85721-0038, USA.
Angela Sarah KimThe University of Arizona, Department of Nutritional Sciences, 406 Shantz Building, 1177 E. 4th Street, Tucson AZ 85721-0038, USA.
Nirav C MerchantThe University of Arizona, Information Technology, Arizona Research Laboratory, Keating Bioresearch Bldg, Tucson AZ 85721-0077, USA.
Denise J RoeThe University of Arizona, College of Public Health, Epidemiology and Biostatistics, USA.

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Dan Theodorescu · 1985 to 2026
$110.2M
NCI NIH HHS P30 CA023074
6 · The paper itself

Abstract

BACKGROUND/

objectivesThe Recaller app was developed to help individuals record their food intakes. This pilot study evaluated the usability of this new food picture application (app), which operates on a smartphone with an embedded camera and Internet capability. SUBJECTS/

methodsAdults aged 19 to 28 years (23 males and 22 females) were assigned to use the Recaller app on six designated, nonconsecutive days in order to capture an image of each meal and snack before and after eating. The images were automatically time-stamped and uploaded by the app to the Recaller website. A trained nutritionist administered a 24-hour dietary recall interview 1 day after food images were taken. Participants' opinions of the Recaller app and its usability were determined by a follow-up survey. As an evaluation indicator of usability, the number of images taken was analyzed and multivariate Poisson regression used to model the factors determining the number of images sent.

resultsA total of 3,315 food images were uploaded throughout the study period. The median number of images taken per day was nine for males and 13 for females. The survey showed that the Recaller app was easy to use, and 50% of the participants would consider using the app daily. Predictors of a higher number of images were as follows: greater interval (hours) between the first and last food images sent, weekend, and female.

conclusionsThe results of this pilot study provide valuable information for understanding the usability of the Recaller smartphone food picture app as well as other similarly designed apps. This study provides a model for assisting nutrition educators in their collection of food intake information by using tools available on smartphones. This innovative approach has the potential to improve recall of foods eaten and monitoring of dietary intake in nutritional studies.

Indexed as

24-hour dietary recallFood picturesfood recordsmartphone app

Identifiers

PMID25861429
PMCPMC4388954

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LicenceCC BY-NC
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.