Evidence map›Paper›PMID 19222372›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2009

Screening for cryptococcal antigenemia in patients accessing an antiretroviral treatment program in South Africa.

Joseph N Jarvis, Stephen D Lawn, Monica Vogt, Nonzwakazi Bangani, Robin Wood, Thomas S Harrison

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 166 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
166citing papers in PubMed, 4 pooled it
16.1field-weighted citation impact, top 1% 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

166 citing papers in PubMed, 4 syntheses or guidelines pooled it, 323 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. CD4 Cell Count Threshold for Cryptococcal Antigen Screening of HIV-Infected Individuals: A Systematic Review and Meta-analysis.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
    Pooled it
  4. Clinical practice guidelines for the management of cryptococcal disease: 2010 update by the infectious diseases society of america.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2010
    Guideline
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  9. Clinical Impact and Cost-Effectiveness of Improving Access to Cryptococcal Meningitis Diagnostics and Treatment in Malawi.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026
    Article
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106 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

Joseph N JarvisDepartment of Medicine, Division of Infectious Diseases, Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa. joejarvis@doctors.net.uk
Stephen D Lawn
Monica Vogt
Nonzwakazi Bangani
Robin Wood
Thomas S Harrison
Desmond Tutu HIV Foundation · ZAUniversity of Cape Town · ZA

Funding

The effect of ART on rates and transmission of TBU19AI053217 · NIAID · WITS HEALTH CONSORTIUM (PTY), LTD · PI MCINTYRE, JAMES ALASDAIR · 2002 to 2011
$44.9M
Optimizing HIV Care in Less Developed CountriesR01AI058736 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI Kenneth Alan Freedberg, Emily Parker Hyle · 2004 to 2026
$21.5M
NIAID NIH HHS 1U19AI53217-01NIAID NIH HHS R01 AI058736NIAID NIH HHS U19 AI053217Wellcome Trust 081794
6 · The paper itself

Abstract

backgroundCryptococcal meningitis is a leading cause of death in patients with acquired immunodeficiency syndrome and contributes substantially to the high early mortality in antiretroviral treatment (ART) programs in low-resource settings. Screening for cryptococcal antigen in patients who enroll in ART programs may identify those at risk of cryptococcal meningitis and permit targeted use of preemptive therapy.

methodsIn this retrospective study, cryptococcal antigen was measured in stored plasma samples obtained from patients when they enrolled in a well-characterized ART cohort in South Africa. The predictive value of screening for cryptococcal antigen before initiation of ART for development of microbiologically confirmed cryptococcal meningitis or death during the first year of follow-up was determined.

resultsOf 707 participants with a baseline median CD4 cell count of 97 cells/microL (interquartile range, 46-157 cells/microL), 46 (7%) were positive for cryptococcal antigen. Antigenemia was 100% sensitive for predicting development of cryptococcal meningitis during the first year of ART, and in multivariate analysis, it was an independent predictor of mortality (adjusted hazard ratio, 3.2; 95% confidence interval, 1.5-6.6). Most cases (92%) of cryptococcal meningitis developed in patients with a CD4 cell count <or= 100 cells/microL. In this subset of patients, a cryptococcal antigen titer >or 1:8 was 100% sensitive and 96% specific for predicting incident cryptococcal meningitis during the first year of ART in those with no history of the disease.

conclusionsCryptococcal antigen screening before initiation of ART in patients with a CD4 cell count <or=100 cells/microL is highly effective for identifying those at risk of cryptococcal meningitis and death and might permit implementation of a targeted preemptive treatment strategy.

Indexed as

Antiretroviral Therapy, Highly ActiveAdultAntigens, FungalCD4 Lymphocyte CountCryptococcosisFemaleHIV InfectionsHumansMaleMeningitis, CryptococcalPredictive Value of TestsRetrospective StudiesSensitivity and SpecificitySouth AfricaYoung AdultAntigens, Fungal

Identifiers

PMID19222372
PMCPMC2875173
OpenAlexW2139368207

What OpenQuestion holds

Textmetadata
LicenceTDM
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.