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Association of HIV low-level viremia with CD4 count recovery among persons living with HIV during antiretroviral therapy in Dehong Prefecture, Southwest China in 2008–2021: a longitudinal study
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Association of HIV low-level viremia with CD4 count recovery among persons living with HIV during antiretroviral therapy in Dehong Prefecture, Southwest China in 2008–2021: a longitudinal study
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Association of HIV low-level viremia with CD4 count recovery among persons living with HIV during antiretroviral therapy in Dehong Prefecture, Southwest China in 2008–2021: a longitudinal study
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Journal Article
Association of HIV low-level viremia with CD4 count recovery among persons living with HIV during antiretroviral therapy in Dehong Prefecture, Southwest China in 2008–2021: a longitudinal study
2025
Overview
Background
The impact of human immunodeficiency virus (HIV) low-level viremia (LLV) on CD4 + T lymphocyte (CD4) cell count recovery during antiretroviral therapy (ART) remains unknown in China. This study aimed to investigate the association between LLV and CD4 count recovery among adults on ART in Southwest China.
Methods
A longitudinal cohort study of persons living with HIV (PLHIV) were conducted in Dehong Prefecture, Southwest China. Incidence of CD4 count recovery (CD4 cell count ≥ 500 cells/µl) was calculated for each follow-up year and characteristics of LLV (VL between 50 and 999 copies/ml) were described. Group-based trajectory model (GBTM) was used to identify and characterize the trajectories of CD4 cell count and VL during follow up. Longitudinal associations between LLV and CD4 count recovery were examined using a generalized estimating equation (GEE) with LLV as a time-updated variable.
Results
The study included a total of 7,485 PLHIV who received ART between 2008 and 2021 in Dehong. The median follow-up duration was 8.5 years. At baseline, the participants had a median age of 36 years, with males accounting for 60.5%. The median CD4 cell count at baseline was 268 cells/µl. Results of GBTM demonstrated that 730 patients (9.8%) experience LLV trajectories and 2,125 patients (28.4%) reached CD4 count recovery during follow-up. Compared to participants with the trajectory of VL < 50 copies/ml, the probability of CD4 count recovery were lower among participants with the trajectories of LLV 50–199 copies/ml (adjusted odds ratio [aOR] 0.69, 95% confidence interval [CI] 0.63–0.76) and LLV 200–999 copies/ml (aOR 0.51, 95% CI 0.45–0.59),
Conclusion
Sustained LLV is associated with poorer CD4 recovery among HIV patients who are receiving ART. Interventions to ensure that PLHIV maintain durably undetectable VL during treatment should be prioritized to achieve immune recovery.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
Acquired immune deficiency syndrome
/ Adult
/ AIDS
/ Analysis
/ Anti-HIV Agents - therapeutic use
/ Anti-Retroviral Agents - therapeutic use
/ Antiretroviral Therapy, Highly Active
/ Complications and side effects
/ Female
/ HIV
/ HIV Infections - drug therapy
/ HIV Infections - epidemiology
/ Human immunodeficiency virus
/ Humans
/ Male
/ Medicine
/ Recovery
/ T cells
/ Viremia
