Evidence map›Paper›PMID 15047945›Full record

ArticleThorax2004

Outbreak of isoniazid resistant tuberculosis in north London.

M C Ruddy, A P Davies, M D Yates, S Yates, S Balasegaram, Y Drabu, B Patel, S Lozewicz, S Sen, M Bahl and 7 more

Abstract read
In one paragraph

Article in Thorax, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Twenty years and counting: epidemiology of an outbreak of isoniazid-resistant tuberculosis in England and Wales, 1995 to 2014.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2017
    Article
  6. Isoniazid-resistant tuberculosis: a cause for concern?The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2017
    Review
  7. Article
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors.

M C RuddyHPA Mycobacterium Reference Unit, King's College Hospital (Dulwich), Guy's King's and St Thomas' Medical School, London SE22 8QF, UK. m.c.p.r@doctors.org.uk
A P Davies
M D Yates
S Yates
S Balasegaram
Y Drabu
B Patel
S Lozewicz
S Sen
M Bahl
E James
M Lipman
G Duckworth
J M Watson
M Piper
F A Drobniewski
H Maguire

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA description is given of a major outbreak of isoniazid monoresistant tuberculosis (TB) chiefly in north London, including prisons. The earliest case was diagnosed in 1995 with most cases appearing after 1999.

methodsConfirmation of a local cluster of cases was confirmed by restriction fragment length polymorphism (RFLP IS6110) typing or "rapid epidemiological typing" (RAPET). Further cases were found by retrospective analysis of existing databases, prospective screening of new isolates, and targeted epidemiological case detection including questionnaire analysis.

resultsBy the end of 2001, 70 confirmed cases in London had been linked with a further 13 clinical cases in contacts and nine epidemiologically linked cases outside London. The epidemic curve suggests that the peak of the outbreak has not yet been reached. Cases in the outbreak largely belong to a social group of young adults of mixed ethnic backgrounds including several individuals from professional/business backgrounds. Compared with other cases of TB reported to the enhanced surveillance scheme in London during 1999-2001, the cases are more likely to be of white (26/70 (37%) v 1308/7666 (17%)) or black Caribbean ethnicity (17/70 (24%) v 312/7666 (4%)), born in the UK (41/70 (59%) v 1335/7666 (17%)), and male (52/70 (74%) v 4195/7666 (55%)). Drug misuse and/or prison detention are factors common to many cases.

conclusionsThe investigation of the outbreak revealed significant problems on an individual patient and population based level including difficulties with contact tracing, compliance, and the risk of developing multidrug resistance. This incident has demonstrated the value of molecular strain typing in investigating an extensive outbreak of TB. This is the first documented outbreak involving a UK prison.

Indexed as

Disease OutbreaksAdolescentAdultAgedAntitubercular AgentsChildContact TracingFemaleHumansIsoniazidLondonMaleMiddle AgedPolymorphism, Restriction Fragment LengthPrisonersRisk FactorsAntitubercular AgentsIsoniazid

Identifiers

PMID15047945
PMCPMC1763803

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.