Evidence map›Paper›PMID 33170801›Full record

ArticleJMIR mHealth and uHealth2020

Evaluation of the Design and Implementation of a Peer-To-Peer COVID-19 Contact Tracing Mobile App (COCOA) in Japan.

Ichiro Nakamoto, Ming Jiang, Jilin Zhang, Weiqing Zhuang, Yan Guo, Ming-Hui Jin, Yi Huang, Kuotai Tang

Abstract read
In one paragraph

Article in JMIR mHealth and uHealth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Digital Contact Tracing Applications against COVID-19: A Systematic Review.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2022
    Pooled it
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  16. Effect of commuting on the risk of COVID-19 and COVID-19-induced anxiety in Japan, December 2020.Archives of public health = Archives belges de sante publique · 2021
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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.

Ichiro NakamotoSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0001-8810-9075
Ming JiangSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0002-0229-3594
Jilin ZhangSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0003-4354-0405
Weiqing ZhuangSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0002-1368-2675
Yan GuoSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0002-4227-4048
Ming-Hui JinSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0002-8179-7650
Yi HuangSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0002-9636-6159
Kuotai TangSchool of Internet Economics and Business, Fujian University of Technology, Fuzhou, China.ORCID 0000-0002-4531-3401

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We evaluate a Bluetooth-based mobile contact-confirming app, COVID-19 Contact-Confirming Application (COCOA), which is being used in Japan to contain the spread of COVID-19, the disease caused by the novel virus termed SARS-COV-2. The app prioritizes the protection of users' privacy from a variety of parties (eg, other users, potential attackers, and public authorities), enhances the capacity to balance the current load of excessive pressure on health care systems (eg, local triage of exposure risk and reduction of in-person hospital visits), increases the speed of responses to the pandemic (eg, automated recording of close contact based on proximity), and reduces operation errors and population mobility. The peer-to-peer framework of COCOA is intended to provide the public with dynamic and credible updates on the COVID-19 pandemic without sacrificing the privacy of their information. However, cautions must be exercised to address critical concerns, such as the rate of participation and delays in data sharing. The results of a simulation imply that the participation rate in Japan needs to be close 90% to effectively control the spread of COVID-19.

Indexed as

Contact TracingCOVID-19HumansJapanMobile ApplicationsPandemicsPublic Health SurveillanceBluetooth-basedclose contactcontact tracingCOVID-19decentralizedload balancingmobile apppeer-to-peerprivacy protectiontelehealth

Identifiers

PMID33170801
PMCPMC7710388

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.