TY - JOUR
T1 - Incidence and progression of coronary artery calcium in HIV-infected and HIV-uninfected men
AU - Kingsley, Lawrence A.
AU - Deal, Jennifer
AU - Jacobson, Lisa
AU - Budoff, Matthew
AU - Witt, Mallory
AU - Palella, Frank
AU - Calhoun, Bridget
AU - Post, Wendy S.
N1 - Publisher Copyright:
© 2015 Wolters Kluwer Health, Inc. All rights reserved.
PY - 2015
Y1 - 2015
N2 - Objective: The aim of this article is to determine whether HIV-infected (HIV+) men have either higher incidence or more rapid progression of coronary artery calcium (CAC) compared with HIV-uninfected (HIV∗) controls. Design: Prospective observational study. Setting: Multicenter study in four US academic research centers: University of Pittsburgh, Johns Hopkins University, University of California Los Angeles, and Northwestern University. Participants: Eight hundred and twenty-five men (541 HIV+and 284 HIV∗) enrolled in the cardiovascular substudy of the Multicenter AIDS Cohort Study who underwent serial cardiac computed tomography (CT) imaging during a mean follow-up of 5 years (range, 2-8 years). Main outcome measures: Incidence and progression of CAC assessed by cardiac CT. Results: During follow-up, 21% of HIV+ men developed incident CAC compared with 16% of HIV∗ men. This association persisted after adjustment for traditional and HIVassociated risk factors: hazard ratio 1.64 (1.13-3.14). However, there was no association between HIV serostatus and CAC progression among men with CAC present at baseline. Current smoking and increased insulin resistance, both modifiable risk factors, were independently associated with increased incidence of CAC. No evidence supporting an elevated risk for either CAC progression or incidence was found for either dyslipidemia or long-term usage of antiretroviral therapy. Conclusion: In this large study of HIV+ and HIV∗ men who underwent serial cardiac CT scan imaging, HIV+ men were at significantly higher risk for development of CAC: hazard ratio 1.64 (1.13-3.14). In addition, two important and modifiable risk factors were identified for increased incidence of CAC. Taken together, these findings underscore the potential importance for smoking cessation and interventions to improve insulin resistance among HIV+ men.
AB - Objective: The aim of this article is to determine whether HIV-infected (HIV+) men have either higher incidence or more rapid progression of coronary artery calcium (CAC) compared with HIV-uninfected (HIV∗) controls. Design: Prospective observational study. Setting: Multicenter study in four US academic research centers: University of Pittsburgh, Johns Hopkins University, University of California Los Angeles, and Northwestern University. Participants: Eight hundred and twenty-five men (541 HIV+and 284 HIV∗) enrolled in the cardiovascular substudy of the Multicenter AIDS Cohort Study who underwent serial cardiac computed tomography (CT) imaging during a mean follow-up of 5 years (range, 2-8 years). Main outcome measures: Incidence and progression of CAC assessed by cardiac CT. Results: During follow-up, 21% of HIV+ men developed incident CAC compared with 16% of HIV∗ men. This association persisted after adjustment for traditional and HIVassociated risk factors: hazard ratio 1.64 (1.13-3.14). However, there was no association between HIV serostatus and CAC progression among men with CAC present at baseline. Current smoking and increased insulin resistance, both modifiable risk factors, were independently associated with increased incidence of CAC. No evidence supporting an elevated risk for either CAC progression or incidence was found for either dyslipidemia or long-term usage of antiretroviral therapy. Conclusion: In this large study of HIV+ and HIV∗ men who underwent serial cardiac CT scan imaging, HIV+ men were at significantly higher risk for development of CAC: hazard ratio 1.64 (1.13-3.14). In addition, two important and modifiable risk factors were identified for increased incidence of CAC. Taken together, these findings underscore the potential importance for smoking cessation and interventions to improve insulin resistance among HIV+ men.
KW - Antiretroviral therapy
KW - Atherosclerosis
KW - Coronary artery calcium
KW - HIV
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U2 - 10.1097/QAD.0000000000000847
DO - 10.1097/QAD.0000000000000847
M3 - Article
C2 - 26558542
AN - SCOPUS:84947746094
SN - 0269-9370
VL - 29
SP - 2427
EP - 2434
JO - AIDS
JF - AIDS
IS - 18
ER -