Evidence map›Paper›PMID 31291359›Full record

ArticlePloS one2019

Pertussis clinical case definition: Time for change in developing countries?

Sheila Gopal Krishnan, Weng Hong Fun, Malini Devi Ramadras, Rahmah Yunus, Yik Fan Lye, Sondi Sararaks

Abstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 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

6 authors.

Sheila Gopal KrishnanPaediatrics Department, Hospital Kulim, Kedah, Malaysia.
Weng Hong FunCentre For Health Outcomes Research, Institute For Health Systems Research, Selangor, Malaysia.
Malini Devi RamadrasPaediatrics Department, Hospital Kulim, Kedah, Malaysia.
Rahmah YunusPaediatrics Department, Hospital Kulim, Kedah, Malaysia.
Yik Fan LyePaediatrics Department, Hospital Kulim, Kedah, Malaysia.
Sondi SararaksCentre For Health Outcomes Research, Institute For Health Systems Research, Selangor, Malaysia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDeveloping countries still struggle with late detection and mortality from pertussis. A review of clinical case definitions is necessary for early disease detection. This paper aimed to study possible clinical characteristics for earlier pertussis detection in a sporadic setting.

methodsWe conducted a retrospective review of medical and laboratory records in a general paediatric ward of a district hospital in a developing country. Inclusion criteria were all children hospitalised with nasopharyngeal swab taken for Bordetella pertussis. We compared sensitivity and specificity of World Health Organization diagnostic criteria with other clinical characteristics. Polymerase chain reaction Bordetella pertussis was the gold standard used.

resultsOut of 207 eligible admissions, the study retrieved 128 complete records. Approximately half of the children were less than 3 months old. The World Health Organization diagnostic criteria had a low sensitivity (15%), but high specificity (92%). In comparison, combinations that included paroxysmal cough, ill contact and facial congestion had higher sensitivity. Increasing cough duration improved specificity while compromising sensitivity.

conclusionSeveral clinical characteristics such as paroxysmal cough, facial congestion and a history of ill contact have potential for early clinical detection. Conventional emphasis on cough duration may hamper early detection.

Indexed as

Bordetella pertussisDeveloping CountriesDNA, BacterialFemaleHumansInfantMalaysiaRetrospective StudiesWhooping CoughDNA, Bacterial

Identifiers

PMID31291359
PMCPMC6619773

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