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1.  Veterans Aging Cohort Study (VACS) 
Medical care  2006;44(8 Suppl 2):S13-S24.
Background
The Veterans Aging Cohort Study (VACS) is a study of human immunodeficiency virus (HIV) infected and uninfected patients seen in infectious disease and general medical clinics. VACS includes the earlier 3 and 5 site studies (VACS 3 and VACS 5) as well as the ongoing 8 site study.
Objectives
We sought to provide background and context for analyses based upon VACS data, including study design and rationale as well as its basic protocol and the baseline characteristics of the enrolled sample.
Research Design
We undertook a prospectively consented multisite observational study of veterans in care with and without HIV infection.
Measures
Data were derived from patient and provider self report, telephone interviews, blood and DNA samples, focus groups, and full access to the national VA “paperless” electronic medical record system.
Results
More than 7200 veterans have been enrolled in at least one of the studies. The 8 site study (VACS) has enrolled 2979 HIV-infected and 3019 HIV-uninfected age–race–site matched comparators and has achieved stratified enrollment targets for race/ethnicity and age and 99% of its total target enrollment as of October 30, 2005. Participants in VACS are similar to other veterans receiving care within the VA. VACS participants are older and more predominantly black than those reported by the Centers for Disease Control.
Conclusions
VACS has assembled a rich, in-depth, and representative sample of veterans in care with and without HIV infection to conduct longitudinal analyses of questions concerning the association between alcohol use and related comorbid and AIDS-defining conditions.
doi:10.1097/01.mlr.0000223741.02074.66
PMCID: PMC3049942  PMID: 16849964
HIV/AIDS; alcohol; aging veterans; data management/research design
2.  The Association Between the Receipt of Lipid Lowering Therapy and HIV Status Among Veterans Who Met NCEP/ATP III Criteria for the Receipt of Lipid Lowering Medication 
ABSTRACT
OBJECTIVE
To examine the association between HIV infection status and the receipt of lipid lowering therapy based on National Cholesterol Education Program/Adult Treatment Panel (NCEP/ATP III) guidelines and to assess whether HIV viral load and hepatitis C (HCV) status alters that association.
PARTICIPANTS AND DESIGN
A cross-sectional analysis of survey, laboratory, and pharmacy data from 1,577 male participants (59% HIV infected) of the Veterans Aging Cohort Five-Site Study, a prospective observational cohort of U.S. veterans with and without HIV infection.
MEASUREMENTS
Receipt of lipid lowering therapy obtained from the VA pharmacy benefits management system was the main outcome.
RESULTS
The prevalence of lipid lowering therapy among HIV-infected and HIV-uninfected veterans was 15.4% vs. 37.9%, respectively,  < 0.01. Among veterans who met NCEP/ATP III criteria for lipid lowering therapy, HIV-infected veterans had a significantly lower prevalence for the receipt of lipid lowering therapy (adjusted odds ratio (OR) = 0.43, 95% confidence interval (C.I.) 0.28–0.67) as compared with HIV-uninfected veterans. Among HIV-infected veterans, log HIV viral load (adjusted OR = 0.57, 95% CI, 0.41–0.81) and HIV-HCV co-infection (adjusted OR = 0.31, 95% CI = 0.13–0.75) were negatively associated with receipt of lipid lowering therapy. Exposure to HAART was not associated with receipt of lipid lowering therapy.
CONCLUSIONS
Among those who met NCEP/ATP III criteria for lipid lowering therapy, HIV-infected veterans, particularly those with high HIV viral loads and HCV co-infection, were significantly less likely to receive lipid lowering therapy. This may be a modifiable mediator of cardiovascular disease among HIV-infected individuals.
doi:10.1007/s11606-008-0891-7
PMCID: PMC2642578  PMID: 19127386
HIV; cholesterol; hepatitis C; men; veterans; cardiovascular diseases

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