Evidence map›Paper›PMID 29355147›Full record

ArticleThe Indian journal of medical research2017

Unreliability of three commercial

Selvaraj Stephen, Stanley Ambroise, Jothimani Pradeep, Dhandapany Gunasekaran, Balakrishnan Sangeetha, Kengamuthu Sarangapani

Open access · diamondAbstract read
In one paragraph

Article in The Indian journal of medical research, 2017. 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
0.8field-weighted citation impact, top 29% 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

7 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Identification of Immunogenic Linear B-Cell Epitopes inPathogens (Basel, Switzerland) · 2021
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Diagnosis of Acute Q Fever by Detection ofJournal of clinical and diagnostic research : JCDR · 2017
    Article
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 at 1 institution in 1 country.

Selvaraj StephenDepartment of Microbiology, Mahatma Gandhi Medical College & Research Institute, Puducherry, India.
Stanley AmbroiseDepartment of General Medicine, Indira Gandhi Government General Hospital & Post Graduate Institute, Puducherry, India.
Jothimani PradeepDepartment of Microbiology, Mahatma Gandhi Medical College & Research Institute, Puducherry, India.
Dhandapany GunasekaranDepartment of Paediatrics, Mahatma Gandhi Medical College & Research Institute, Puducherry, India.
Balakrishnan SangeethaDepartment of Microbiology, Mahatma Gandhi Medical College & Research Institute, Puducherry, India.
Kengamuthu SarangapaniDepartment of Microbiology, Indira Gandhi Government General Hospital & Post Graduate Institute, Puducherry, India.
Mahatma Gandhi Medical College and Research Institute · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

objectivesSeroprevalence of Q fever (QF) caused by Coxiella burnetii has been reported from different parts of India. Usually serological/molecular tests are employed for detection of infection. The present study was undertaken to verify the validity of three different QF phase II IgM ELISA kits for acute QF diagnosis by comparing with the gold standard indirect fluorescent antibody assay (IFA).

methodsFifty eight serum samples collected from 42 patients (26 patients provided acute sample only and 16 both acute and convalescent samples) which were examined by all three commercial kits, were cross-checked with QF Phase II IgM IFA for confirmation.

resultsEleven patients were positive for C. burnetii antibodies by IFA in acute and/or convalescent serum samples. Taking IFA as a reference, percentages of sensitivity, specificity, positive predictive value and negative predictive value for Virion-Serion/Vircell/NovaTec were 36.36, 61.29, 25.00, 73.08; 81.82, 35.48, 31.03, 84.62 and 100, 25.81, 32.35, 100 per cent, respectively. INTERPRETATION &

conclusionsThe three different ELISA kits exhibited poor agreement amongst them and unacceptable level of false positivity. IFA remains to be the only option for diagnosing acute QF. Discrepancy between the clinical findings and IFA/ELISA results needs confirmation by C. burnetii DNA detection in real-time polymerase chain reaction.

Indexed as

AdolescentAdultAntibodies, BacterialChildChild, PreschoolCoxiella burnetiiEnzyme-Linked Immunosorbent AssayFemaleHumansImmunoglobulin MIndiaMaleMiddle AgedPredictive Value of TestsQ FeverSeroepidemiologic StudiesAntibodies, BacterialImmunoglobulin M

Identifiers

PMID29355147
PMCPMC5793475
OpenAlexW2794246296

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.