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AM Levine, L Bernstein, J Sullivan-Halley, D Shibata, SB Mahterian and BN Nathwani
Department of Internal Medicine, University of Southern California, School
of Medicine, Los Angeles 90033, USA.
The role of zidovudine and other antiretroviral agents in the pathogenesis
of acquired immunodeficiency syndrome (AIDS)-related lymphomas has been
somewhat controversial. In an attempt to elucidate the precise role of
antiretroviral agents in the subsequent development of AIDS-related
lymphoma, we performed a population-based, case-control study of human
immunodeficiency virus (HIV)-seropositive patients with intermediate- or
high-grade lymphoma in Los Angeles County, California, in which information
regarding use of antiretroviral medications was ascertained. Diagnostic
biopsy material was reviewed to confirm intermediate-or high-grade
lymphoma. A structured interview, conducted with all cases and controls,
included information about use of zidovudine and other antiretroviral
agents. A total of 112 HIV-infected homosexual/bisexual men with lymphoma
were matched to 112 homosexual/bisexual men with asymptomatic HIV
infection; 49 of the lymphoma cases were also matched to 49 additional
controls with AIDS, as defined by conditions other than lymphoma. Positive
histories of zidovudine use were reported by 44 (39%) lymphoma cases, 24
(21%) asymptomatic HIV controls, and 21 (42%) AIDS controls. The average
duration of zidovudine use up to 12 months before lymphoma diagnosis was
19.0 +/- 13.0 months (mean +/- SD) for the lymphoma cases, 12.6 +/- 10.5
months for the asymptomatic controls, and 11.0 +/- 7.1 months for the AIDS
controls. When comparing the 49 HIV-positive lymphoma cases with their 49
matched AIDS controls, all of whom were diagnosed with AIDS during the same
time period, the matched relative odds of lymphoma associated with prior
use of zidovudine was 0.43 (95% confidence interval [CI] = 0.17 to 1.12).
In comparing all 112 lymphoma cases with 49 AIDS controls, the unmatched
relative odds of lymphoma associated with zidovudine use was 0.93 (95%
confidence interval = 0.47 to 1.83). One lymphoma case and no AIDS control
cases had a history of didanosine use; no lymphoma case or AIDS control
cases had taken zalcitabine. We conclude that zidovudine is not associated
with an increased risk of development of lymphoma among HIV-infected
homosexual or bisexual men.
This article has been cited by other articles:
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| Copyright © 1995 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||