Evidence map›Paper›PMID 37974135›Full record

ReviewBMC public health2023

Use of a digital contact tracing system in Singapore to mitigate COVID-19 spread.

Bryan W K Chow, Yi Ding Lim, Richard C H Poh, Amy Ko, Guo Hao Hong, Steffen W L Zou, Joshua Cheah, Shaowei Ho, Vernon J M Lee, Marc Z J Ho

Abstract readReview
In one paragraph

Review in BMC public health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 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

10 authors.

Bryan W K ChowPreventive Medicine Residency Program, National University Health System, Singapore, Singapore. e0880533@u.nus.edu.
Yi Ding LimCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Richard C H PohCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Amy KoCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Guo Hao HongCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Steffen W L ZouCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Joshua CheahCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Shaowei HoGovernment Technology Agency, Prime Minister's Office, Singapore, Republic of Singapore.
Vernon J M LeeCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.
Marc Z J HoCommunicable Diseases Division, Ministry of Health, Singapore, Republic of Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundContact tracing has been essential to reducing spread of COVID-19. Singapore leveraged technology to assist with contact tracing efforts using a Bluetooth-based app and token platform called 'TraceTogether'.

methodsWe reviewed the impact of this system during the country's Delta and Omicron waves (24 August 2021 to 17 February 2022) to identify differences in number of close contacts and time savings between full automation using TraceTogether alone as compared to manual contact tracing supplemented by TraceTogether. Characteristics of digital contact tracing app or token users were reviewed. Thereafter, the number of close contacts identified by manual and digital contact tracing methods, and the number of confirmed COVID-19 cases among contacts were analysed. The difference in time taken for identification of close contacts was also determined.

findingsAdoption rate for TraceTogether was high, with 93.3% of cases having a registered device. There was a 9.8 h (34.9%) reduction in time savings for close contacts to be informed using TraceTogether alone compared to manual contact tracing supplemented by TraceTogether. The proportion of close contacts automatically identified through TraceTogether alone and turned positive was 3.6%. For those identified through manual contact tracing supplemented by TraceTogether, this proportion was 12.5% and 6.2% for those served quarantine orders and health risk warnings respectively.

interpretationThe high adoption rate of 'TraceTogether' suggest that digital solutions remain a promising option to improve contact tracing in future epidemics. This may have been through its concurrent use with vaccine differentiated public health measures and policies which engender public trust. There is future potential for utilising such technology in managing communicable diseases to achieve good public health outcomes.

Indexed as

COVID-19Mobile ApplicationsContact TracingHumansPublic HealthQuarantineSingaporeCommunicable Diseases ControlContact TracingCOVID-19Digital HealthEpidemiology

Identifiers

PMID37974135
PMCPMC10652620

What OpenQuestion holds

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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.