Evidence map›Paper›PMID 39638852›Full record

ArticleNPJ digital medicine2024

AI-enabled wearable cameras for assisting dietary assessment in African populations.

Frank P-W Lo, Jianing Qiu, Modou L Jobarteh, Yingnan Sun, Zeyu Wang, Shuo Jiang, Tom Baranowski, Alex K Anderson, Megan A McCrory, Edward Sazonov and 5 more

Abstract read
In one paragraph

Article in NPJ digital medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

15 authors.

Frank P-W LoThe Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK. po.lo15@imperial.ac.uk.
Jianing QiuThe Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK. jianing.qiu@outlook.com.
Modou L JobartehDepartment of Population Health, London School of Hygiene & Tropical Medicine, London, UK.
Yingnan SunThe Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK.
Zeyu WangThe Hamlyn Centre for Robotic Surgery, Imperial College London, London, UK.
Shuo JiangCollege of Electronics and Information Engineering, Tongji University, Shanghai, China.ORCID http://orcid.org/0000-0003-3645-6301
Tom BaranowskiDepartment of Pediatrics, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX, USA.
Alex K AndersonDepartment of Nutritional Sciences, University of Georgia, Athens, GA, USA.
Megan A McCroryDepartment of Health Sciences, Boston University, Boston, MA, USA.ORCID http://orcid.org/0000-0002-5024-1465
Edward SazonovDepartment of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL, USA.
Wenyan JiaDepartment of Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
Mingui SunDepartment of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0001-7948-9205
Matilda Steiner-AsieduDepartment of Nutrition and Food Science, University of Ghana, Accra, Ghana.
Gary FrostSection of Nutrition, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK. g.frost@imperial.ac.uk.ORCID http://orcid.org/0000-0003-0529-6325
Benny LoSection of Nutrition, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK. benny.lo@imperial.ac.uk.ORCID http://orcid.org/0000-0002-5080-108X

Funding

Bill and Melinda Gates Foundation (Bill & Melinda Gates Foundation) OPP1171395
6 · The paper itself

Abstract

We have developed a population-level method for dietary assessment using low-cost wearable cameras. Our approach, EgoDiet, employs an egocentric vision-based pipeline to learn portion sizes, addressing the shortcomings of traditional self-reported dietary methods. To evaluate the functionality of this method, field studies were conducted in London (Study A) and Ghana (Study B) among populations of Ghanaian and Kenyan origin. In Study A, EgoDiet's estimations were contrasted with dietitians' assessments, revealing a performance with a Mean Absolute Percentage Error (MAPE) of 31.9% for portion size estimation, compared to 40.1% for estimates made by dietitians. We further evaluated our approach in Study B, comparing its performance to the traditional 24-Hour Dietary Recall (24HR). Our approach demonstrated a MAPE of 28.0%, showing a reduction in error when contrasted with the 24HR, which exhibited a MAPE of 32.5%. This improvement highlights the potential of using passive camera technology to serve as an alternative to the traditional dietary assessment methods.

Identifiers

PMID39638852
PMCPMC11621677

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.