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M9610602.TXT
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1996-01-30
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Document 0602
DOCN M9610602
TI Concordance of PCR and antibody results from HIV testing of injecting
drug users.
DT 9601
AU Kral AH; Watters JK; Lifson AR; Carlson JR; Stanley M; Urban Health
Study, Institute for Health Policy Studies, San; Francisco, CA 94110,
USA.
SO J Acquir Immune Defic Syndr Hum Retrovirol. 1995 Nov 1;10(3):381-5.
Unique Identifier : AIDSLINE MED/96027807
AB Standard HIV-1 testing relies on the enzyme immunoassay (EIA) for
detecting antibodies specific to HIV-1. This technique may misclassify
persons as HIV-1-negative in instances where testing follows infection
but precedes development of antibody to HIV-1. To evaluate the
occurrence of HIV infection in the absence of positive antibody,
polymerase chain reaction (PCR) for viral DNA in the blood has been
applied. Research comparing these two testing techniques has generally
focused on populations of homosexual and bisexual men. This study
compares PCR and antibody testing of 337 injecting drug users recruited
from street settings in San Francisco. Of 286 HIV-1 antibody-negative
samples, 3 (1.0%) were PCR-positive. Of 49 HIV-1 antibody-positive
samples, 1 (2.0%) was PCR-negative. Two samples were
antibody-indeterminate and PCR-negative. This yielded an overall
concordance of 331/335 (98.8%), excluding the indeterminate results.
These results suggest that current antibody methodology is adequate.
However, misclassification among recently infected individuals may
occur, which is of concern in high-incidence groups.
DE Adult Comparative Study Cross-Sectional Studies DNA, Viral/*BLOOD
Female Human HIV Antibodies/*BLOOD HIV Infections/*DIAGNOSIS HIV
Seropositivity/*DIAGNOSIS *HIV-1/GENETICS/IMMUNOLOGY Immunoenzyme
Techniques Male Middle Age Polymerase Chain Reaction/METHODS
Reproducibility of Results Substance Abuse, Intravenous/*COMPLICATIONS
Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).