Abstract
BACKGROUND: Human immunodeficiency virus (HIV) infection leads to chronic immune activation/inflammation that can persist in virally suppressed persons on fully active antiretroviral therapy (ART) and increase risk of malignancies. The prognostic role of low CD4:CD8 ratio and elevated CD8 cell counts on the risk of cancer remains unclear.
METHODS: We investigated the association of CD4:CD8 ratio on the hazard of non-AIDS defining malignancy (NADM), AIDS-defining malignancy (ADM) and most frequent group of cancers in ART-treated people with HIV (PWH) with a CD4 and CD8 cell counts and viral load measurements at baseline. We developed Cox proportional hazard models with adjustment for known confounders of cancer risk and time-dependent cumulative and lagged exposures of CD4:CD8 ratio to account for time-evolving risk factors and avoid reverse causality.
RESULTS: CD4:CD8 ratios below 0.5, compared to above 1.0, were independently associated with a 12-month time-lagged higher risk of ADM and infection-related malignancies (adjusted hazard ratio 2.61 [95% confidence interval {CI }1.10-6.19] and 2.03 [95% CI 1.24-3.33], respectively). CD4 cell counts below 350 cells/μL were associated with an increased risk of NADMs and ADMs, as did infection, smoking, and body mass index-related malignancies.
CONCLUSIONS: In ART-treated PWH low CD4:CD8 ratios were associated with ADM and infection-related cancers independently from CD4 and CD8 cell counts and may alert clinicians for cancer screening and prevention of NADM.
| Original language | English |
|---|---|
| Journal | Clinical infectious diseases : an official publication of the Infectious Diseases Society of America |
| Volume | 78 |
| Issue number | 4 |
| Pages (from-to) | 995-1004 |
| Number of pages | 10 |
| ISSN | 1058-4838 |
| DOIs | |
| Publication status | Published - 10 Apr 2024 |
Keywords
- Acquired Immunodeficiency Syndrome/complications
- Anti-HIV Agents/adverse effects
- Anti-Retroviral Agents/therapeutic use
- CD4 Lymphocyte Count
- CD4-CD8 Ratio
- HIV
- HIV Infections/complications
- Humans
- Neoplasms/complications
- Viral Load
- malignancy
- antiretroviral therapy
- CD4:CD8 ratio
- observational study
- HIV infection
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