BACKGROUND: Cardiovascular and cerebrovascular (CVD) events/diseases are a common cause of non-acquired immunodeficiency syndrome (AIDS)-related mortality in the aging human immunodeficiency virus (HIV)-infected population. The incidence rate and clinical correlates of CVD in people living with HIV/AIDS compared to the general population warrants further investigation. HYPOTHESIS: HIV/AIDS is associated with increased risk CVD compared to general population. METHODS: CVD events in a matched cohort of HIV-infected and non-HIV-infected adults, ≥18 years old, served through the South Carolina Medicaid program during 1994 to 2011 were examined using time-dependent proportional hazards regression and marginal structural modeling. RESULTS: A retrospective cohort of 13,632 adults was followed longitudinally for an average of 51 months. The adjusted hazard ratio (aHR) of incident CVD events was higher among HIV-infected individuals exposed to combination antiretroviral therapy (cART) (aHR = 1.15) compared to the non-HIV-infected group, but did not differ from the subgroup of cART-naïve HIV-infected adults. A higher aHR of incident CVD was associated with comorbid hypertension (aHR = 2.18), diabetes (aHR = 1.38), obesity (aHR = 1.30), tobacco use (aHR = 1.47), and hepatitis C coinfection (aHR = 1.32), and older age (aHR = 1.26), but with a lower risk among females (aHR = 0.86). A higher risk of incident CVD events was also apparent in HIV-infected individuals with exposure to both protease inhibitors (adjusted risk ratio [aRR] = 1.99) and non-nucleoside reverse transcriptase inhibitors (aRR = 2.19) compared to those with no exposure. Sustained viral load suppression was associated with a lower risk of incident CVD events (aRR = 0.74). CONCLUSIONS: After adjusting for traditional risk factors and sociodemographic differences, there is higher risk of incident cardiovascular events among HIV-infected individuals exposed to combined antiretroviral medications compared to the general population.
BACKGROUND:Cardiovascular and cerebrovascular (CVD) events/diseases are a common cause of non-acquired immunodeficiency syndrome (AIDS)-related mortality in the aging human immunodeficiency virus (HIV)-infected population. The incidence rate and clinical correlates of CVD in people living with HIV/AIDS compared to the general population warrants further investigation. HYPOTHESIS: HIV/AIDS is associated with increased risk CVD compared to general population. METHODS: CVD events in a matched cohort of HIV-infected and non-HIV-infected adults, ≥18 years old, served through the South Carolina Medicaid program during 1994 to 2011 were examined using time-dependent proportional hazards regression and marginal structural modeling. RESULTS: A retrospective cohort of 13,632 adults was followed longitudinally for an average of 51 months. The adjusted hazard ratio (aHR) of incident CVD events was higher among HIV-infected individuals exposed to combination antiretroviral therapy (cART) (aHR = 1.15) compared to the non-HIV-infected group, but did not differ from the subgroup of cART-naïve HIV-infected adults. A higher aHR of incident CVD was associated with comorbid hypertension (aHR = 2.18), diabetes (aHR = 1.38), obesity (aHR = 1.30), tobacco use (aHR = 1.47), and hepatitis C coinfection (aHR = 1.32), and older age (aHR = 1.26), but with a lower risk among females (aHR = 0.86). A higher risk of incident CVD events was also apparent in HIV-infected individuals with exposure to both protease inhibitors (adjusted risk ratio [aRR] = 1.99) and non-nucleoside reverse transcriptase inhibitors (aRR = 2.19) compared to those with no exposure. Sustained viral load suppression was associated with a lower risk of incident CVD events (aRR = 0.74). CONCLUSIONS: After adjusting for traditional risk factors and sociodemographic differences, there is higher risk of incident cardiovascular events among HIV-infected individuals exposed to combined antiretroviral medications compared to the general population.
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