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1.
J Infect Dis ; 228(12): 1699-1708, 2023 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-37697938

RESUMO

BACKGROUND: Hospital readmission trends for persons with human immunodeficiency virus (PWH) in North America in the context of policy changes, improved antiretroviral therapy (ART), and aging are not well-known. We examined readmissions during 2005-2018 among adult PWH in NA-ACCORD. METHODS: Linear risk regression estimated calendar trends in 30-day readmissions, adjusted for demographics, CD4 count, AIDS history, virologic suppression (<400 copies/mL), and cohort. RESULTS: We examined 20 189 hospitalizations among 8823 PWH (73% cisgender men, 38% White, 38% Black). PWH hospitalized in 2018 versus 2005 had higher median age (54 vs 44 years), CD4 count (469 vs 274 cells/µL), and virologic suppression (83% vs 49%). Unadjusted 30-day readmissions decreased from 20.1% (95% confidence interval [CI], 17.9%-22.3%) in 2005 to 16.3% (95% CI, 14.1%-18.5%) in 2018. Absolute annual trends were -0.34% (95% CI, -.48% to -.19%) in unadjusted and -0.19% (95% CI, -.35% to -.02%) in adjusted analyses. By index hospitalization reason, there were significant adjusted decreases only for cardiovascular and psychiatric hospitalizations. Readmission reason was most frequently in the same diagnostic category as the index hospitalization. CONCLUSIONS: Readmissions decreased over 2005-2018 but remained higher than the general population's. Significant decreases after adjusting for CD4 count and virologic suppression suggest that factors alongside improved ART contributed to lower readmissions. Efforts are needed to further prevent readmissions in PWH.


Assuntos
Infecções por HIV , Readmissão do Paciente , Adulto , Masculino , Humanos , Estados Unidos/epidemiologia , HIV , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Estudos de Coortes , Canadá/epidemiologia
2.
J Viral Hepat ; 30(9): 775-786, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37338017

RESUMO

Among persons with HIV (PWH), higher alcohol use and having hepatitis C virus (HCV) are separately associated with increased morbidity and mortality. We investigated whether the association between alcohol use and mortality among PWH is modified by HCV. Data were combined from European and North American cohorts of adult PWH who started antiretroviral therapy (ART). Self-reported alcohol use data, collected in diverse ways between cohorts, were converted to grams/day. Eligible PWH started ART during 2001-2017 and were followed from ART initiation for mortality. Interactions between the associations of baseline alcohol use (0, 0.1-20.0, >20.0 g/day) and HCV status were assessed using multivariable Cox models. Of 58,769 PWH, 29,711 (51%), 23,974 (41%) and 5084 (9%) self-reported alcohol use of 0 g/day, 0.1-20.0 g/day, and > 20.0 g/day, respectively, and 4799 (8%) had HCV at baseline. There were 844 deaths in 37,729 person-years and 2755 deaths in 443,121 person-years among those with and without HCV, respectively. Among PWH without HCV, adjusted hazard ratios (aHRs) for mortality were 1.18 (95% CI: 1.08-1.29) for 0.0 g/day and 1.84 (1.62-2.09) for >20.0 g/day compared with 0.1-20.0 g/day. This J-shaped pattern was absent among those with HCV: aHRs were 1.00 (0.86-1.17) for 0.0 g/day and 1.64 (1.33-2.02) for >20.0 g/day compared with 0.1-20.0 g/day (interaction p < .001). Among PWH without HCV, mortality was higher in both non-drinkers and heavy drinkers compared with moderate alcohol drinkers. Among those with HCV, mortality was higher in heavy drinkers but not non-drinkers, potentially due to differing reasons for not drinking (e.g. illness) between those with and without HCV.


Assuntos
Coinfecção , Infecções por HIV , Hepatite C , Adulto , Humanos , Hepacivirus , Causas de Morte , Coinfecção/epidemiologia , Coinfecção/complicações , Hepatite C/complicações , Hepatite C/epidemiologia , Estudos de Coortes , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia
3.
Am J Public Health ; 113(2): 162-165, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36480765

RESUMO

To determine whether the Veterans Health Administration's (VHA) hepatitis C (HCV) treatment campaign reached marginalized populations, we compared HCV care by previous incarceration status with Veterans Aging Cohort Study data. Of those with and those without previous incarceration, respectively, 40% and 21% had detectable HCV, 59% and 65% underwent treatment (P = .07); 92% and 94% of those who completed treatment achieved sustained virologic response. The VHA HCV treatment effort was successful and other systems should replicate those efforts. (Am J Public Health. 2023;113(2):162-165. https://doi.org/10.2105/AJPH.2022.307152).


Assuntos
Hepatite C , Veteranos , Estados Unidos/epidemiologia , Humanos , Saúde dos Veteranos , Estudos de Coortes , United States Department of Veterans Affairs , Hepatite C/tratamento farmacológico , Hepacivirus , Antivirais/uso terapêutico
4.
Clin Infect Dis ; 75(2): 297-304, 2022 08 25.
Artigo em Inglês | MEDLINE | ID: mdl-34609485

RESUMO

BACKGROUND: The updated Veterans Aging Cohort Study (VACS) Index 2.0 combines general and human immunodeficiency virus (HIV)-specific biomarkers to generate a continuous score that accurately discriminates risk of mortality in diverse cohorts of persons with HIV (PWH), but a score alone is difficult to interpret. Using data from the North American AIDS Cohort Collaboration (NA-ACCORD), we translate VACS Index 2.0 scores into validated probability estimates of mortality. METHODS: Because complete mortality ascertainment is essential for accurate calibration, we restricted analyses to cohorts with mortality from the National Death Index or equivalent sources. VACS Index 2.0 components were ascertained from October 1999 to April 2018. Mortality was observed up to March 2019. Calibration curves compared predicted (estimated by fitting a gamma model to the score) to observed mortality overall and within subgroups: cohort (VACS/NA-ACCORD subset), sex, age <50 or ≥50 years, race/ethnicity, HIV-1 RNA ≤500 or >500 copies/mL, CD4 count <350 or ≥350 cells/µL, and years 1999-2009 or 2010-2018. Because mortality rates have decreased over time, the final model was limited to 2010-2018. RESULTS: Among 37230 PWH in VACS and 8061 PWH in the NA-ACCORD subset, median age was 53 and 44 years; 3% and 19% were women; and 48% and 39% were black. Discrimination in NA-ACCORD (C-statistic = 0.842 [95% confidence interval {CI}, .830-.854]) was better than in VACS (C-statistic = 0.813 [95% CI, .809-.817]). Predicted and observed mortality largely overlapped in VACS and the NA-ACCORD subset, overall and within subgroups. CONCLUSIONS: Based on this validation, VACS Index 2.0 can reliably estimate probability of all-cause mortality, at various follow-up times, among PWH in North America.


Assuntos
Infecções por HIV , Veteranos , Envelhecimento , Calibragem , Estudos de Coortes , Feminino , HIV , Infecções por HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , América do Norte/epidemiologia
5.
AIDS Behav ; 26(3): 975-985, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34495424

RESUMO

Although opioid agonist therapy (OAT) is associated with positive health outcomes, including improved HIV management, long-term retention in OAT remains low among patients with opioid use disorder (OUD). Using data from the Veterans Aging Cohort Study (VACS), we identify variables independently associated with OAT retention overall and by HIV status. Among 7,334 patients with OUD, 13.7% initiated OAT, and 27.8% were retained 12-months later. Likelihood of initiation and retention did not vary by HIV status. Variables associated with improved likelihood of retention included receiving buprenorphine (relative to methadone), receiving both buprenorphine and methadone at some point over the 12-month period, or diagnosis of HCV. History of homelessness was associated with a lower likelihood of retention. Predictors of retention were largely distinct between patients with HIV and patients without HIV. Findings highlight the need for clinical, systems, and research initiatives to better understand and improve OAT retention.


Assuntos
Infecções por HIV , Transtornos Relacionados ao Uso de Opioides , Analgésicos Opioides/uso terapêutico , Estudos de Coortes , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Metadona/uso terapêutico , Tratamento de Substituição de Opiáceos , Transtornos Relacionados ao Uso de Opioides/complicações , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Transtornos Relacionados ao Uso de Opioides/epidemiologia
6.
AIDS Behav ; 26(3): 786-794, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34542779

RESUMO

The timeline followback (TLFB) takes more resources to collect than the Alcohol Use Disorder Identification Test (AUDIT-C). We assessed agreement of TLFB and AUDIT-C with the biomarker phosphatidylethanol (PEth) and compared changes in TLFB and PEth among persons with HIV (PWH) using secondary data from randomized trials. We calculated operating characteristics and agreement between TLFB (> 1 and > 2 average drinks/day), AUDIT-C ≥ 4 and PEth ≥ 20 among 275 men with HIV. Median age was 57 years, 80% were African-American; and 17% white. Sixty-eight percent had PEth ≥ 20, 46% reported > 2 average drinks/day on TLFB, 61% reported > 1 average drinks/day on TLFB, and 72% had an AUDIT-C ≥ 4. Relative to PEth, sensitivity for AUDIT-C ≥ 4 was 84% (kappa = 0.36), and for TLFB > 1 average drink/day was 76% (kappa = 0.44). Change in alcohol use appeared greater using TLFB measures than PEth. Strategies to robustly assess alcohol use in PWH may require both self-report and biomarkers.


Assuntos
Infecções por HIV , Consumo de Bebidas Alcoólicas/epidemiologia , Biomarcadores , Glicerofosfolipídeos , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Autorrelato
7.
AIDS Behav ; 25(1): 203-214, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32617778

RESUMO

Alcohol use increases non-adherence to antiretroviral therapy (ART) among persons living with HIV (PLWH). Dynamic longitudinal associations are understudied. Veterans Aging Cohort Study (VACS) data 2/1/2008-7/31/16 were used to fit linear regression models estimating changes in adherence (% days with ART medication fill) associated with changes in alcohol use based on annual clinically-ascertained AUDIT-C screening scores (range - 12 to + 12, 0 = no change) adjusting for demographics and initial adherence. Among 21,275 PLWH (67,330 observations), most reported no (48%) or low-level (39%) alcohol use initially, with no (55%) or small (39% ≤ 3 points) annual change. Mean initial adherence was 86% (SD 21%), mean annual change was - 3.1% (SD 21%). An inverted V-shaped association was observed: both increases and decreases in AUDIT-C were associated with greater adherence decreases relative to stable scores [p < 0.001, F (4, 21,274)]. PLWH with dynamic alcohol use (potentially indicative of alcohol use disorder) should be considered for adherence interventions.


RESUMEN: El consumo de alcohol aumenta el no-cumplimiento a la terapia antirretroviral (TARV) entre las personas que viven con VIH. No se han estudiado lo suficiente las dinámicas asociaciones longitudinales. Los datos del Estudio de la Envejecimiento de Cohorte de Veteranos (EECV) (1/2/2008­31/7/2016) fueron usados para encajar modelos de regresión lineal estimando los cambios en cumplimiento (% de días con medicaciones TARV surtidas) asociados con los cambios en el consumo de alcohol basado en los resultados anuales de las evaluaciones AUDIT-C, determinadas clínicamente, (una gama de -12 a + 12, 0 = cero cambio) adaptándose a las estadísticas demográficas y cumplimiento inicial. Entre 21,275 personas que viven con VIH (67,330 observaciones), la mayoría reportó ningún (48%) o bajos niveles del (39%) consumo de alcohol inicialmente, con ningún (55%) o muy pequeño (39% ≤ 3 puntos) cambio anual. la media inicial de cumplimiento fue 86% (DE 21%). La media de cambio anual fue -3.1% (DE 21%). Se observó una asociación de forma V invertida: tanto los aumentos como las disminuciones en AUDIT-C fueron asociados con mayor disminuciones de cumplimiento en comparación con resultados estables (p < 0.001, F (4, 21,274)). Personas que viven con VIH con el consumo dinámico de alcohol (potencialmente indicativo de un trastorno por consumo de alcohol) deben ser considerados por intervenciones de cumplimiento.


Assuntos
Consumo de Bebidas Alcoólicas , Antirretrovirais , Infecções por HIV , Adesão à Medicação , Idoso , Consumo de Bebidas Alcoólicas/epidemiologia , Antirretrovirais/uso terapêutico , Estudos de Coortes , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade
8.
J Infect Dis ; 222(2): 252-262, 2020 06 29.
Artigo em Inglês | MEDLINE | ID: mdl-32052044

RESUMO

BACKGROUND: A higher proportion of circulating memory CD4+ T cells is associated with prevalent diabetes mellitus in the general population. Given the broad changes in adaptive immunity, including memory T-cell expansion, and rising prevalence of diabetes in the human immunodeficiency virus (HIV) population, we assessed whether similar relationships were present in persons with HIV (PWH). METHODS: Multiple CD4+ and CD8+ T-cell subsets were measured by flow cytometry, and prevalent diabetes cases were adjudicated by 2 physicians for PWH and HIV-negative participants in the Veterans Aging Cohort Study. Multivariable logistic regression models evaluated the association of T-cell subsets and diabetes stratified by HIV status, adjusted for cytomegalovirus serostatus and traditional risk factors. RESULTS: Among 2385 participants (65% PWH, 95% male, 68% African American), higher CD45RO+ memory CD4+ T cells and lower CD38+ CD4+ T cells were associated with prevalent diabetes, and had a similar effect size, in both the PWH and HIV-negative (P ≤ .05 for all). Lower CD38+CD8+ T cells were also associated with diabetes in both groups. CONCLUSIONS: The CD4+ and CD8+ T-cell subsets associated with diabetes are similar in PWH and HIV-negative individuals, suggesting that diabetes in PWH may be related to chronic immune activation.


Assuntos
Linfócitos T CD4-Positivos/imunologia , Complicações do Diabetes , Diabetes Mellitus/imunologia , Infecções por HIV/complicações , Infecções por HIV/imunologia , Memória Imunológica , Subpopulações de Linfócitos T/imunologia , Biomarcadores/sangue , Contagem de Linfócito CD4 , Linfócitos T CD8-Positivos/imunologia , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Regressão , Veteranos
9.
Pharmacoepidemiol Drug Saf ; 29(11): 1432-1439, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33006179

RESUMO

BACKGROUND: Electronic medical records (EMR) represent a rich source of data, but the value of EMR for health research relies on accurate ascertainment of clinical diagnoses. Identifying diabetes in EMR is complicated by the variety of accepted diagnostic criteria, some of which can be confounded by conditions such as HIV infection. We compared EMR-based criteria for estimating diabetes prevalence and incidence in the Veterans Health Administration (VHA), overall and by HIV status, against physician chart review and adjudication. RESEARCH DESIGN AND METHODS: We used laboratory values (serum glucose and hemoglobin A1c% [HbA1c]), ICD-9 codes, and medication records from the United States Veterans Aging Cohort Study Biomarker Cohort to identify veterans with any indication of diabetes in the EMR for subsequent physician adjudication. Sensitivity, specificity, PPV, NPV, and kappa statistics were used to evaluate agreement of EMR-based diabetes diagnoses with chart review adjudicated diagnoses. RESULTS: EMR entries were reviewed for 1546 persons with HIV (PWH) and 843 HIV-negative participants through 2015. Agreement was at least moderate overall (kappa ≥ 0.42) for all pre-specified measures and among PWH vs HIV-negative, and African-American vs white sub-groups. Having at least one HbA1c ≥6.5% provided substantial agreement with chart adjudication for prevalent and incident diabetes (kappa = 0.89 and 0.73). CONCLUSIONS: Identification of those with diabetes nationally within the VHA can be used in future studies to evaluate treatments, health outcomes, and adjust for diabetes in epidemiologic studies. Our methodology may provide insights for other organizations seeking to use EMR data for accurate determination of diabetes.


Assuntos
Diabetes Mellitus , Infecções por HIV , Veteranos , Estudos de Coortes , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/epidemiologia , Registros Eletrônicos de Saúde , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Humanos , Masculino , Estados Unidos/epidemiologia
10.
Med Care ; 57 Suppl 6 Suppl 2: S157-S163, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31095055

RESUMO

BACKGROUND: Electronic health records (EHRs) are a rich source of health information; however social determinants of health, including incarceration, and how they impact health and health care disparities can be hard to extract. OBJECTIVE: The main objective of this study was to compare sensitivity and specificity of patient self-report with various methods of identifying incarceration exposure using the EHR. RESEARCH DESIGN: Validation study using multiple data sources and types. SUBJECTS: Participants of the Veterans Aging Cohort Study (VACS), a national observational cohort based on data from the Veterans Health Administration (VHA) EHR that includes all human immunodeficiency virus-infected patients in care (47,805) and uninfected patients (99,060) matched on region, age, race/ethnicity, and sex. MEASURES AND DATA SOURCES: Self-reported incarceration history compared with: (1) linked VHA EHR data to administrative data from a state Department of Correction (DOC), (2) linked VHA EHR data to administrative data on incarceration from Centers for Medicare and Medicaid Services (CMS), (3) VHA EHR-specific identifier codes indicative of receipt of VHA incarceration reentry services, and (4) natural language processing (NLP) in unstructured text in VHA EHR. RESULTS: Linking the EHR to DOC data: sensitivity 2.5%, specificity 100%; linking the EHR to CMS data: sensitivity 7.9%, specificity 99.3%; VHA EHR-specific identifier for receipt of reentry services: sensitivity 7.3%, specificity 98.9%; and NLP, sensitivity 63.5%, specificity 95.9%. CONCLUSIONS: NLP tools hold promise as a feasible and valid method to identify individuals with exposure to incarceration in EHR. Future work should expand this approach using a larger body of documents and refinement of the methods, which may further improve operating characteristics of this method.


Assuntos
Demandas Administrativas em Assistência à Saúde/estatística & dados numéricos , Registros Eletrônicos de Saúde/estatística & dados numéricos , Processamento de Linguagem Natural , Prisioneiros/estatística & dados numéricos , Autorrelato , Veteranos/estatística & dados numéricos , Adulto , Estudos de Coortes , Etnicidade , Feminino , Humanos , Armazenamento e Recuperação da Informação , Masculino , Medicare/estatística & dados numéricos , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Estados Unidos , United States Department of Veterans Affairs
11.
AIDS Behav ; 23(1): 140-151, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29995206

RESUMO

We evaluated associations between levels of alcohol use and HIV care continuum components using national Veterans Aging Cohort Study data for all patients with HIV and AUDIT-C screening (2/1/2008-9/30/2014). Poisson regression models evaluated associations between alcohol use levels (non-drinking, low-, medium-, high-, and very high-level drinking) and: (1) engagement with care (documented CD4 cells/µl or viral load copies/ml labs), (2) ART treatment (≥ 1 prescription), and (3) viral suppression (HIV RNA < 500 copies/ml) within one year. Among 33,224 patients, alcohol use level was inversely associated with all care continuum outcomes (all p < 0.001). Adjusted prevalence of care engagement ranged from 77.8% (95% CI 77.1-78.4%) for non-drinking to 69.1% (66.6-71.6%) for high-level drinking. The corresponding range for ART treatment was 74.0% (73.3-74.7%) to 60.1% (57.3-62.9%) and for viral suppression was 57.3% (56.5-58.1%) to 38.3% (35.6-41.1%). Greater alcohol use is associated with suboptimal HIV treatment across the HIV care continuum.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Fármacos Anti-HIV/uso terapêutico , Continuidade da Assistência ao Paciente , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Adesão à Medicação/estatística & dados numéricos , Consumo de Bebidas Alcoólicas/efeitos adversos , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Estados Unidos , Veteranos , Carga Viral
12.
AIDS Care ; 31(3): 349-356, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30064277

RESUMO

Three quarters of new HIV infections in the US are among men who have sex with men (MSM). In other populations, incarceration is a social determinant of elevations in viral load and HIV-related substance use and sex risk behavior. There has been limited research on incarceration and these HIV transmission risk determinants in HIV-positive MSM. We used the Veterans Aging Cohort Study (VACS) 2011-2012 follow-up survey to measure associations between past year and prior (more than one year ago) incarceration and HIV viral load and substance use and sex risk behavior among HIV-positive MSM (N = 532). Approximately 40% had ever been incarcerated, including 9% in the past year. In analyses adjusting for sociodemographic factors, past year and prior incarceration were strongly associated with detectable viral load (HIV-1 RNA >500 copies/mL) (past year adjusted odds ratio (AOR): 3.50 95% confidence interval (CI): 1.59, 7.71; prior AOR: 2.48 95% CI: 1.44, 4.29) and past 12 month injection drug use (AORs > 6), multiple sex partnerships (AORs > 1.8), and condomless sex in the context of substance use (AORs > 3). Past year incarceration also was strongly associated with alcohol and non-injection drug use (AOR > 2.5). Less than one in five HIV-positive MSM recently released from incarceration took advantage of a jail/prison re-entry health care program available to veterans. We need to reach HIV-positive MSM leaving jails and prisons to improve linkage to care and clinical outcomes and reduce transmission risk upon release.


Assuntos
Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Prisioneiros/estatística & dados numéricos , Minorias Sexuais e de Gênero/estatística & dados numéricos , Carga Viral , Adulto , Idoso , Idoso de 80 Anos ou mais , Consumo de Bebidas Alcoólicas/epidemiologia , Estudos de Coortes , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Abuso de Substâncias por Via Intravenosa/epidemiologia , Estados Unidos/epidemiologia , Sexo sem Proteção/estatística & dados numéricos , Adulto Jovem
13.
Addict Biol ; 24(5): 1056-1065, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30284751

RESUMO

A validated, scalable approach to characterizing (phenotyping) smoking status is needed to facilitate genetic discovery. Using established DNA methylation sites from blood samples as a criterion standard for smoking behavior, we compare three candidate electronic medical record (EMR) smoking metrics based on longitudinal EMR text notes. With data from the Veterans Aging Cohort Study (VACS), we employed a validated algorithm to translate each smoking-related text note into current, past or never categories. We compared three alternative summary characterizations of smoking: most recent, modal and trajectories using descriptive statistics and Spearman's correlation coefficients. Logistic regression and area under the curve analyses were used to compare the associations of these phenotypes with the DNA methylation sites, cg05575921 and cg03636183, which are known to have strong associations with current smoking. DNA methylation data were available from the VACS Biomarker Cohort (VACS-BC), a sub-study of VACS. We also considered whether the associations differed by the certainty of trajectory group assignment (<0.80/≥0.80). Among 140 152 VACS participants, EMR summary smoking phenotypes varied in frequency by the metric chosen: current from 33 to 53 percent; past from 16 to 24 percent and never from 24 to 33 percent. The association between the EMR smoking pairs was highest for modal and trajectories (rho = 0.89). Among 728 individuals in the VACS-BC, both DNA methylation sites were associated with all three EMR summary metrics (p < 0.001), but the strongest association with both methylation sites was observed for trajectories (p < 0.001). Longitudinal EMR smoking data support using a summary phenotype, the validity of which is enhanced when data are integrated into statistical trajectories.


Assuntos
Metilação de DNA/genética , Registros Eletrônicos de Saúde/normas , Fumar/genética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fenótipo , Reprodutibilidade dos Testes , Autorrelato , Veteranos/estatística & dados numéricos
14.
Alcohol Clin Exp Res ; 41(5): 998-1003, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28295416

RESUMO

BACKGROUND: Although alcohol risk is heritable, few genetic risk variants have been identified. Longitudinal electronic health record (EHR) data offer a largely untapped source of phenotypic information for genetic studies, but EHR-derived phenotypes for harmful alcohol exposure have yet to be validated. Using a variant of known effect, we used EHR data to develop and validate a phenotype for harmful alcohol exposure that can be used to identify unknown genetic variants in large samples. Herein, we consider the validity of 3 approaches using the 3-item Alcohol Use Disorders Identification Test consumption measure (AUDIT-C) as a phenotype for harmful alcohol exposure. METHODS: First, using longitudinal AUDIT-C data from the Veterans Aging Cohort Biomarker Study Cohort (VACS-BC), we compared 3 metrics of AUDIT-C using correlation coefficients: (i) AUDIT-C closest to blood sampling (closest AUDIT-C), (ii) the highest value (highest AUDIT-C), (iii) and longitudinal trajectories generated using joint trajectory modeling (AUDIT-C trajectory). Second, we compared the associations of the 3 AUDIT-C metrics with phosphatidylethanol (PEth), a direct, quantitative biomarker for alcohol in the overall sample using chi-square tests for trend. Last, in the subsample of African Americans (AAs; n = 1,503), we compared the associations of the 3 AUDIT-C metrics with rs2066702 a common missense (Arg369Cys) polymorphism of the ADH1B gene, which encodes an alcohol dehydrogenase isozyme. RESULTS: The sample (n = 1,851, 94.5% male, 65% HIV+, mean age 52 years) had a median of 7 AUDIT-C scores over a median of 6.1 years. Highest AUDIT-C and AUDIT-C trajectory were correlated r = 0.86. The closest AUDIT-C was obtained a median of 2.26 years after the VACS-BC blood draw. Overall and among AAs, all 3 AUDIT-C metrics were associated with PEth (all p < 0.05), but the gradient was steepest with AUDIT-C trajectory. Among AAs (36% with the protective ADH1B allele), the association of rs2066702 with AUDIT-C trajectory and highest AUDIT-C was statistically significant (p < 0.05), and the gradient was steeper for the AUDIT-C trajectory than for the highest AUDIT-C. The closest AUDIT-C was not statistically significantly associated with rs2066702. CONCLUSIONS: EHR data can be used to identify complex phenotypes such as harmful alcohol use. The validity of the phenotype may be enhanced through the use of longitudinal trajectories.


Assuntos
Álcool Desidrogenase/genética , Transtornos Relacionados ao Uso de Álcool/sangue , Transtornos Relacionados ao Uso de Álcool/genética , Glicerofosfolipídeos/sangue , Fenótipo , Polimorfismo Genético/genética , Transtornos Relacionados ao Uso de Álcool/psicologia , Estudos de Coortes , Feminino , Humanos , Estudos Longitudinais , Masculino , Veteranos/psicologia
15.
Clin Infect Dis ; 62(2): 233-239, 2016 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-26338783

RESUMO

BACKGROUND: The Patient Protection and Affordable Care Act encourages healthcare systems to track quality-of-care measures; little is known about their impact on mortality rates. The objective of this study was to assess associations between HIV quality of care and mortality rates. METHODS: A longitudinal survival analysis of the Veterans Aging Cohort Study included 3038 human immunodeficiency virus (HIV)-infected patients enrolled between June 2002 and July 2008. The independent variable was receipt of ≥80% of 9 HIV quality indicators (QIs) abstracted from medical records in the 12 months after enrollment. Overall mortality rates through 2014 were assessed from the Veterans Health Administration, Medicare, and Social Security National Death Index records. We assessed associations between receiving ≥80% of HIV QIs and mortality rates using Kaplan-Meier survival analysis and adjusted Cox proportional hazards models. Results were stratified by unhealthy alcohol and illicit drug use. RESULTS: The majority of participants were male (97.5%) and black (66.8%), with a mean (standard deviation) age of 49.0 (8.8) years. Overall, 25.9% reported past-year unhealthy alcohol use and 28.4% reported past-year illicit drug use. During 24 805 person-years of follow-up (mean [standard deviation], 8.2 [3.3] years), those who received ≥80% of QIs experienced lower age-adjusted mortality rates (adjusted hazard ratio, 0.75; 95% confidence interval, .65-.86). Adjustment for disease severity attenuated the association. CONCLUSIONS: Receipt of ≥80% of select HIV QIs is associated with improved survival in a sample of predominantly male, black, HIV-infected patients but was insufficient to overcome adjustment for disease severity. Interventions to ensure high-quality care and address underlying chronic illness may improve survival in HIV-infected patients.


Assuntos
Infecções por HIV/mortalidade , Qualidade da Assistência à Saúde , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Mortalidade , Análise de Sobrevida , Veteranos
16.
J Gen Intern Med ; 31(12): 1496-1502, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27619934

RESUMO

BACKGROUND: Incarceration is associated with increased risk of hypertension and cardiovascular disease mortality. We used data from the Veterans Aging Cohort Study (VACS) to explore the impact of incarceration on blood pressure (BP) control. METHODS: Among hypertensive VACS participants, we measured the association between self-reported recent incarceration or past (not recent) history of incarceration and BP control in the year following the survey. To analyze the association between incarceration and BP control, we used logistic regression models adjusted for sociodemographic characteristics, clinical factors (HIV status and body mass index), and behavioral factors (history of smoking, unhealthy alcohol use, illicit drug use). We explored potential mediators including post-traumatic stress disorder (PTSD), depression, primary care engagement, and adherence to antihypertensive medications. RESULTS: Among the 3515 eligible VACS participants, 2304 participants met the inclusion criteria. Of these, 163 (7 %) reported recent incarceration, and 904 (39 %) reported a past history of incarceration. Participants with recent or past history of incarceration were more likely to have uncontrolled BP than those without a history of incarceration (67 % vs. 56 % vs. 51 %, p < 0.001). In multivariable analysis, recent incarceration (adjusted odds ratio [AOR] = 1.57 95 % confidence interval [CI]: 1.09-2.26), but not a past history of incarceration (AOR = 1.08 95 % CI: 0.90-1.30), was associated with uncontrolled BP compared with those who were never incarcerated. CONCLUSIONS: Among patients with a history of hypertension, recent incarceration is associated with having uncontrolled BP following release. Interventions are needed for recently released individuals to improve hypertension outcomes.


Assuntos
Pressão Sanguínea/fisiologia , Comportamento Criminoso/fisiologia , Hipertensão/epidemiologia , Hipertensão/psicologia , Prisioneiros/psicologia , Veteranos/psicologia , Idoso , Anti-Hipertensivos/uso terapêutico , Estudos de Coortes , Feminino , Humanos , Hipertensão/tratamento farmacológico , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
17.
AIDS Behav ; 20(3): 504-11, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26936030

RESUMO

The impact of HIV and its treatment on the effects of alcohol remain unclear. Blood alcohol concentrations have been noted to be higher in HIV infected individuals prior to antiretroviral initiation. Our goal was to compare number of drinks to "feel a buzz or high" among HIV infected and uninfected men, stratified by viral load (VL) suppression. Data includes 1478 HIV infected and 1170 uninfected men in the veterans aging cohort study who endorsed current drinking. Mean (SD) number of drinks to feel a buzz was 3.1 (1.7) overall. In multivariable analyses, HIV infected men reported a lower mean number of drinks to feel a buzz compared to uninfected men (coef = -14 for VL < 500; -34 for VL ≥ 500; p ≤ .05). Men with HIV, especially those with a detectable VL, reported fewer drinks to feel a buzz. Future research on the relationship between alcohol and HIV should consider the role of VL suppression.


Assuntos
Envelhecimento , Consumo de Bebidas Alcoólicas/efeitos adversos , Alcoolismo/epidemiologia , Infecções por HIV/virologia , Veteranos , Carga Viral , Adulto , Idoso , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/psicologia , Alcoolismo/complicações , Fármacos Anti-HIV/administração & dosagem , Estudos de Coortes , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Humanos , Masculino , Adesão à Medicação , Pessoa de Meia-Idade , Análise Multivariada
18.
Subst Abus ; 37(2): 315-22, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26167725

RESUMO

BACKGROUND: As antiretroviral treatments prolong life in human immunodeficiency virus (HIV)-infected patients, smoking cessation is now a top priority. However, studies of HIV-infected smokers have not been conducted with uninfected controls. In this study, researchers determined factors associated with contemplating smoking cessation and making a prior quit attempt among HIV-infected and uninfected smoking veterans. METHODS: Between 2005 and 2007, 1,027 HIV-infected and 794 uninfected smokers were identified as part of the Veterans Aging Cohort Study (VACS). Stratifying by HIV status, adjusted odds ratios (AORs) were calculated using logistic regression to identify factors associated with contemplating smoking cessation and making a prior quit attempt. RESULTS: Most participants (66 % of HIV-infected vs. 68 % of uninfected; P = .46) were contemplating cessation, and 56 % of both groups (P = .99) had attempted to quit in the last year. In stratified multivariable analyses, HIV-infected smokers with recent pulmonary disease diagnoses were more likely to have made a quit attempt (AOR = 4.93, 95 % confidence interval [CI] = 1.41-17.17). Both HIV-infected and uninfected patients with unhealthy alcohol use were less likely to be contemplating cessation (AOR = 0.66, 95 % CI = 0.49-0.90 and 0.71, 95 % CI = 0.50-1.00). HIV-infected smokers who reported unhealthy alcohol use were also less likely to have made a quit attempt in the last year (AOR = 0.68, 95 % CI = 0.51-0.91). CONCLUSIONS: Patient-level interest and motivation are not major barriers to smoking cessation among HIV-infected veterans. Targeting HIV-infected smokers with a recent pulmonary disease diagnosis may improve sustained smoking cessation. Unhealthy alcohol use appears to be a key modifiable risk factor. Smoking cessation rates may be improved by combining interventions for smoking and alcohol use for HIV-infected patients.


Assuntos
Infecções por HIV/psicologia , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Abandono do Hábito de Fumar/psicologia , Fumar/psicologia , Veteranos/psicologia , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
19.
Clin Infect Dis ; 60(4): 627-38, 2015 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-25362204

RESUMO

BACKGROUND: Although it has been shown that human immunodeficiency virus (HIV)-infected adults are at greater risk for aging-associated events, it remains unclear as to whether these events happen at similar, or younger ages, in HIV-infected compared with uninfected adults. The objective of this study was to compare the median age at, and risk of, incident diagnosis of 3 age-associated diseases in HIV-infected and demographically similar uninfected adults. METHODS: The study was nested in the clinical prospective Veterans Aging Cohort Study of HIV-infected and demographically matched uninfected veterans, from 1 April 2003 to 31 December 2010. The outcomes were validated diagnoses of myocardial infarction (MI), end-stage renal disease (ESRD), and non-AIDS-defining cancer (NADC). Differences in mean age at, and risk of, diagnosis by HIV status were estimated using multivariate linear regression models and Cox proportional hazards models, respectively. RESULTS: A total of 98 687 (31% HIV-infected and 69% uninfected) adults contributed >450 000 person-years and 689 MI, 1135 ESRD, and 4179 NADC incident diagnoses. Mean age at MI (adjusted mean difference, -0.11; 95% confidence interval [CI], -.59 to .37 years) and NADC (adjusted mean difference, -0.10 [95% CI, -.30 to .10] years) did not differ by HIV status. HIV-infected adults were diagnosed with ESRD at an average age of 5.5 months younger than uninfected adults (adjusted mean difference, -0.46 [95% CI, -.86 to -.07] years). HIV-infected adults had a greater risk of all 3 outcomes compared with uninfected adults after accounting for important confounders. CONCLUSIONS: HIV-infected adults had a higher risk of these age-associated events, but they occurred at similar ages than those without HIV.


Assuntos
Síndrome da Imunodeficiência Adquirida/complicações , Envelhecimento , Infecções por HIV/complicações , Falência Renal Crônica/diagnóstico , Infarto do Miocárdio/diagnóstico , Neoplasias/diagnóstico , Adulto , Estudos de Coortes , Feminino , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Risco , Veteranos , Adulto Jovem
20.
Am J Addict ; 24(2): 178-184, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25662297

RESUMO

BACKGROUND AND OBJECTIVES: One in seven HIV-infected individuals is incarcerated each year. We used data from the Veterans Aging Cohort Study (VACS) to explore the relationship between incarceration and HIV disease outcomes and evaluate potential mediators of this relationship. METHODS: HIV disease outcomes included: low CD4 counts (<200 cells/mL), detectable viral RNA loads (>500 copies/mL), and the VACS Index score. We performed a mediation analysis among 1,591 HIV-infected patients to examine whether unhealthy alcohol use, drug use, primary care engagement, or antiretroviral adherence mediated observed associations. RESULTS: Among 1,591 HIV-infected patients, 47% reported having a history of incarceration. In multivariate analyses, a history of incarceration was associated with a higher VACS Index score (ß 2.47, 95% CI 0.52-4.43). Mediation analysis revealed that recent drug use attenuated the association by 22% (ß 1.93, 95% CI -0.06, 3.91) while other proposed mediators did not. CONCLUSIONS AND SCIENTIFIC SIGNIFICANCE: Improving access to drug treatment when incarcerated and upon release may be an important target to improving the health of HIV-infected individuals with a history of incarceration. (Am J Addict 2015;24:178-184).


Assuntos
Fármacos Anti-HIV/uso terapêutico , Criminosos/estatística & dados numéricos , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Adesão à Medicação/estatística & dados numéricos , Atenção Primária à Saúde/estatística & dados numéricos , Prisioneiros/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/complicações , Adulto , Estudos de Coortes , Feminino , Infecções por HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Resultado do Tratamento , Estados Unidos/epidemiologia , Veteranos/estatística & dados numéricos
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