Evidence map›Paper›PMID 8968906›Full record

ArticleJournal of clinical microbiology1997

Comparative evaluation of two commercial amplification assays for direct detection of Mycobacterium tuberculosis complex in respiratory specimens.

C Piersimoni, A Callegaro, D Nista, S Bornigia, F De Conti, G Santini, G De Sio

Abstract readComparative Study
In one paragraph

Article in Journal of clinical microbiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Quantitative detection of Escherichia coli from urine of patients with bacteriuria by real-time PCR.Molecular diagnosis : a journal devoted to the understanding of human disease through the clinical application of molecular biology · 2004
    Article
  8. Article
  9. Four-year experience of use of the Cobas Amplicor system for rapid detection of Mycobacterium tuberculosis complex in respiratory and nonrespiratory specimens in Greece.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2003
    Article
  10. Article
  11. Article
  12. Review
  13. The role of DNA amplification technology in the diagnosis of infectious diseases.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2000
    Review
  14. Polymerase chain reaction in the diagnosis of tuberculosis.Indian journal of clinical biochemistry : IJCB · 2000
    Article
  15. Article
  16. Article
  17. Article
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  19. Article
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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

7 authors.

C PiersimoniDepartment of Clinical Microbiology, General Hospital Umberto Io-Torrette, Ancona, Italy.
A Callegaro
D Nista
S Bornigia
F De Conti
G Santini
G De Sio

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two commercial assays detecting the presence of Mycobacterium tuberculosis complex in clinical specimens by rRNA target amplification (Gen-Probe Amplified M. tuberculosis Direct Test [AMTD]) and PCR (Amplicor) were evaluated. The tests were applied to 327 digested, decontaminated respiratory specimens collected from 236 patients. Results were compared with those of acid-fast staining and culture. The combination of culture and clinical diagnosis was considered the "gold standard." A total of 60 specimens were collected from 27 patients with a diagnosis of pulmonary tuberculosis. Thirteen of these specimens were from patients receiving standard antituberculosis therapy and therefore were not included in the comparison. Of the remaining 47 specimens, 33 were smear positive, 40 were culture positive, 45 were AMTD positive, and 39 were Amplicor positive. After resolution of discrepant results, the overall sensitivities, specificities, and positive and negative predictive values were 77, 100, 100, and 95 for staining; 87, 100, 100, and 97.4 for culture; 95.9, 98.9, 94, and 99.2 for AMTD; and 85.4, 99.6, 97.9, and 97.1 for Amplicor, respectively. Agreement between AMTD and Amplicor assay results was 96.8%. It is concluded that although both nucleic acid amplification methods are rapid and specific for the detection of M. tuberculosis complex in respiratory specimens, AMTD appeared to be more sensitive than Amplicor.

Indexed as

Bacterial Typing TechniquesBronchoalveolar LavageEvaluation Studies as TopicHumansMycobacterium tuberculosisPolymerase Chain ReactionRNA, BacterialSensitivity and SpecificityTuberculosisRNA, Bacterial

Identifiers

PMID8968906
PMCPMC229537

What OpenQuestion holds

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Registered trials

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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.