False-Reactive Fourth-Generation Human Immunodeficiency Virus Testing in Cancer Patients.

Autor: Chiu, Chia-Yu, Mustafayev, Khalis, Bhatti, Micah M, Jiang, Ying, Granwehr, Bruno P, Torres, Harrys A
Předmět:
Zdroj: Clinical Infectious Diseases; 3/15/2024, Vol. 78 Issue 3, p674-680, 7p
Abstrakt: Background The fourth-generation (4th-gen) human immunodeficiency virus (HIV)-1/2 antibody/antigen (Ab/Ag) combination immunoassay currently used for HIV screening offers greater sensitivity than previous assays, but false-reactive results occur in up to 20% of patients. Large-scale observations in cancer patients are lacking. Methods We conducted a retrospective study of cancer patients seen at the University of Texas MD Anderson Cancer Center (March 2016–January 2023) who had reactive 4th-gen ARCHITECT HIV-1/2 Ab/Ag combination immunoassay results. We analyzed characteristics of patients with true-reactive and false-reactive results, defined based on Centers for Disease Control and Prevention criteria. Results A total of 43 637 patients underwent 4th-gen HIV screening, and 293 had reactive 4th-gen HIV test results. Twenty-one patients were excluded because they did not have cancer. Among the remaining 272 patients, 78 (29%) had false-reactive results. None of these patients experienced delays in their cancer treatment, but 26% experienced mental distress. Multivariate logistic regression analysis identified 5 predictors of having false-reactive results: age >60 years (adjusted odds ratio [aOR], 6.983; P <.0001), female sex (aOR, 6.060; P <.0001), race/ethnicity (Black: aOR, 0.274; Hispanic: aOR, 0.236; P =.002), syphilis coinfection (aOR, 0.046; P =.038), and plant alkaloids therapy (aOR, 2.870; P =.013). Conclusions False-reactive 4th-gen HIV test results occur in almost one-third of cancer patients. Physicians should be aware of the high rates of false-reactive HIV screening results in this patient population. These findings may have implications for counseling regarding testing, especially among those at low risk for HIV infection. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index