Evidence map›Paper›PMID 30562401›Full record

ArticlePloS one2018

Optimizing community screening for tuberculosis: Spatial analysis of localized case finding from door-to-door screening for TB in an urban district of Ho Chi Minh City, Viet Nam.

Luan Nguyen Quang Vo, Thanh Nguyen Vu, Hoa Trung Nguyen, Tung Thanh Truong, Canh Minh Khuu, Phuong Quoc Pham, Lan Huu Nguyen, Giang Truong Le, Jacob Creswell

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
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

15 citing papers in PubMed, 25 citations in OpenAlex.

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  10. Determining the value of TB active case-finding: current evidence and methodological considerations.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 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

9 authors at 1 institution in 1 country.

Luan Nguyen Quang VoFriends for International TB Relief, Ho Chi Minh City, Viet Nam.ORCID 0000-0002-5937-6286
Thanh Nguyen VuHo Chi Minh City Public Health Association, Ho Chi Minh City, Viet Nam.
Hoa Trung NguyenGo Vap District Preventive Health Center, Ho Chi Minh City, Viet Nam.
Tung Thanh TruongHo Chi Minh City Department of Science & Technology, Center for Applied Geographic Information Systems (HCMGIS), Ho Chi Minh City, Viet Nam.
Canh Minh KhuuHo Chi Minh City Department of Science & Technology, Center for Applied Geographic Information Systems (HCMGIS), Ho Chi Minh City, Viet Nam.
Phuong Quoc PhamHo Chi Minh City Department of Science & Technology, Center for Applied Geographic Information Systems (HCMGIS), Ho Chi Minh City, Viet Nam.
Lan Huu NguyenPham Ngoc Thach Hospital, Ho Chi Minh City, Viet Nam.
Giang Truong LeHo Chi Minh City Public Health Association, Ho Chi Minh City, Viet Nam.
Jacob CreswellStop TB Partnership, Geneva, Switzerland.
Ho Chi Minh City University of Science · VN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTuberculosis (TB) is the deadliest infectious disease globally. Current case finding approaches may miss many people with TB or detect them too late. DATA AND

methodsThis study was a retrospective, spatial analysis of routine TB surveillance and cadastral data in Go Vap district, Ho Chi Minh City. We geocoded TB notifications from 2011 to 2015 and calculated theoretical yields of simulated door-to-door screening in three concentric catchment areas (50m, 100m, 200m) and three notification window scenarios (one, two and four quarters) for each index case. We calculated average yields, compared them to published reference values and fit a GEE (Generalized Estimating Equation) linear regression model onto the data.

resultsThe sample included 3,046 TB patients. Adjusted theoretical yields in 50m, 100m and 200m catchment areas were 0.32% (95%CI: 0.27,0.37), 0.21% (95%CI: 0.14,0.29) and 0.17% (95%CI: 0.09,0.25), respectively, in the baseline notification window scenario. Theoretical yields in the 50m-catchment area for all notification window scenarios were significantly higher than a reference yield from literature. Yield was positively associated with treatment failure index cases (beta = 0.12, p = 0.001) and short-term inter-province migrants (beta = 0.06, p = 0.022), while greater distance to the DTU (beta = -0.02, p<0.001) was associated with lower yield.

conclusionsThis study is an example of inter-departmental collaboration and application of repurposed cadastral data to progress towards the end TB objectives. The results from Go Vap showed that the use of spatial analysis may be able to identify areas where targeted active case finding in Vietnam can help improve TB case detection.

Indexed as

Mass ScreeningAdultCitiesComputer SimulationCross-Sectional StudiesFemaleGeographic MappingGeography, MedicalHumansMaleMiddle AgedModels, TheoreticalPoint-of-Care TestingRetrospective StudiesTuberculosisUrban Population

Identifiers

PMID30562401
PMCPMC6298730
OpenAlexW2904381051

What OpenQuestion holds

Textmetadata
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.