Evidence map›Paper›PMID 11724853›Full record

ArticleJournal of clinical microbiology2001

European proficiency testing program for molecular detection and quantitation of hepatitis B virus DNA.

E Valentine-Thon, A M van Loon, J Schirm, J Reid, P E Klapper, G M Cleator

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Global proficiency study of human papillomavirus genotyping.Journal of clinical microbiology · 2010
    Article
  7. Article
  8. Article
  9. Detection and quantification of hepatitis B virus DNA by SYBR green real-time polymerase chain reaction.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2007
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Molecular and diagnostic clinical virology in real time.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2004
    Review
  17. Article
  18. Clinical virology in real time.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2002
    Review
  19. 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.

E Valentine-ThonDepartment of Molecular Biology, Laboratory Dr. Schiwara and Partners, 28357 Bremen, Germany. Elizabeth.Valentine-Thon@Schiwara.de
A M van Loon
J Schirm
J Reid
P E Klapper
G M Cleator

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

External quality control of hepatitis B virus (HBV) DNA detection remains an important issue. This study reports and compares the results obtained from two different proficiency panels for both the qualitative and quantitative assessment of HBV DNA. The panels were designed by the European Union Quality Control Concerted Action, prepared by Boston Biomedica, Inc., and distributed in May 1999 (panel 1) and February 2000 (panel 2). Each contained two negative samples and six positive samples with 10(3) to 10(7) copies/ml (panel 1) or 10(3) to 2 x 10(6) copies of HBV DNA per ml (panel 2). For panel 1, 42 laboratories submitted 20 qualitative (all in-house PCRs) and 37 quantitative (87% commercial assays) data sets. For panel 2, 51 laboratories submitted 25 qualitative (all in-house PCRs) and 47 quantitative (94% commercial assays) data sets. Five data sets (8.8%) in panel 1 and two data sets (2.8%) in panel 2 contained totals of six and two false-positives, respectively, corresponding to false-positive result rates of 5.3% for panel 1 and 1.4% for panel 2. The false-negative result rates of 10.5% for panel 1 and 17.4% for panel 2 were dependent on the detection levels of the assays employed as well as panel composition. In the qualitative analysis of all data sets, 47.4% (panel 1) and 51.4% (panel 2) had all samples correct. An adequate or better score (all correct or only the weak-positive sample missed) was obtained with 77.2% of the panel 1 samples and 68.1% of the panel 2 samples. In the quantitative analysis, 57.1% (panel 1) and 42.6% (panel 2) of the data sets achieved an adequate or better score (positive results within the acceptable range of the geometric mean +/- 0.5 log(10) of all positive results). These results demonstrate that while the qualitative performance of HBV detection has considerably improved compared to that of a previously published HBV proficiency study, the detection levels of many commercial quantitative assays are still too high to allow adequate quantitation of all relevant clinical samples.

Indexed as

DNA, ViralEuropeFalse Positive ReactionsHepatitis BHepatitis B virusHumansPolymerase Chain ReactionQuality ControlReproducibility of ResultsSensitivity and SpecificityDNA, Viral

Identifiers

PMID11724853
PMCPMC88557

What OpenQuestion holds

Textmetadata
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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.