Background
To evaluate the effect of cumulative HIV-1 viremia on aging-related multimorbidity among women living with HIV (WLWH), we analyzed data collected prospectively among women who achieved viral suppression after antiretroviral therapy (ART) initiation (1997—2019).
Methods
We included WLWH with ≥2 plasma HIV-1 viral loads (VL) < 200 copies/ml within a two-year period (baseline) following self-reported ART use. Primary outcome was multimorbidity (≥2 non-AIDS comorbidities (NACM) of 5 total assessed). The trapezoidal rule calculated viremia copy-years (VCY) as area-under-the-VL-curve. Cox proportional hazard models estimated the association of time-updated cumulative VCY with incident multimorbidity and with incidence of each NACM, adjusting for important covariates (e.g., age, CD4 count, etc).
Results
806 WLWH contributed 6,368 women-years, with median 12 (Q1-Q3 7-23) VL per participant. At baseline, median age was 39 years, 56% were Black, and median CD4 was 534 cells/mm3. Median time-updated cumulative VCY was 5.4 (Q1-Q3 4.7-6.9) log10 copy-years/ml. Of 211 (26%) WLWH who developed multimorbidity, 162 (77%) had incident hypertension, 133 (63%) dyslipidemia, 60 (28%) diabetes, 52 (25%) cardiovascular and 32 (15%) kidney disease. Compared with WLWH who had time-updated cumulative VCY <5 log10, the adjusted hazard ratio of multimorbidity was 1.99 (95%CI 1.29-3.08) and 3.78 (95%CI 2.17-6.58) for those with VCY 5-6.9 and ≥7 log10 copy-years/ml, respectively (p < 0.0001). Higher time-updated cumulative VCY increased the risk of each NACM.
Conclusions
Among ART-treated WLWH, greater cumulative viremia increased the risk of multimorbidity and of developing each NACM, and hence may be a prognostically useful biomarker for NACM risk-assessment in this population.