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1.
Open Forum Infect Dis ; 10(1): ofac678, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36726547

RESUMO

Background: Since the availability of antiretroviral therapy, mortality rates among people with HIV (PWH) have decreased; however, this does not quantify premature deaths among PWH, and disparities persist. Methods: We examined all-cause and premature mortality among PWH receiving care at the Vanderbilt Comprehensive Care Clinic from January 1998 to December 2018. Mortality rates were compared by demographic and clinical factors, and adjusted incidence rate ratios (aIRRs) were calculated using multivariable Poisson regression. For individuals who died, age-adjusted years of potential life lost (aYPLL) per total person-years living with HIV were calculated from US sex-specific life tables, and sex and race differences were examined using multivariable linear regression. Results: Among 6531 individuals (51% non-Hispanic [NH] White race, 40% NH Black race, 21% cis-gender women, 78% cis-gender men) included, 956 (14.6%) died. In adjusted analysis, PWH alive in the most recent calendar era (2014-2018) had decreased risk of mortality compared with those in the earliest calendar era (1998-2003; aIRR, 0.22; 95% CI, 0.17-0.29), and women had increased risk of death compared with men (aIRR, 1.31; 95% CI, 1.12-1.54). Of those who died, Black women had the highest aYPLL (aIRR, 592.5; 95% CI, 588.4-596.6), followed by Black men (aIRR, 470.7; 95% CI, 468.4-472.9), White women (aIRR, 411.5; 95% CI, 405.6-417.4), then White men (aIRR, 308.6; 95% CI, 308.0-309.2). In adjusted models, higher YPLL remained associated with NH Black race and cis-gender women, regardless of HIV risk factor. Conclusions: Despite marked improvement over time, sex disparities in mortality as well as sex and race disparities in YPLL remained among PWH in this cohort.

2.
J Prim Care Community Health ; 12: 2150132720984429, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33588614

RESUMO

INTRODUCTION/OBJECTIVES: Across the United States, and particularly in the South, there is an urgent need to improve health outcomes for people with HIV. In response, the Southeast AIDS Education & Training Center (AETC) conducted a 4-year Practice Transformation (PT) initiative (2015-2018) in 12 mostly primary care clinics across 4 states in the region. Drawing on the leadership of PT facilitators ("coaches") from AETC partner sites throughout the region and specific clinic staff members ("champions"), clinics worked toward self-selected organizational goals to increase their HIV care capacity and improve HIV health outcomes. METHODS: To explore coaches' and champions' experiences and perspectives of PT, we conducted 2 focus group sessions, 1 tailored for coaches (n = 5) and another for champions (n = 9). RESULTS: Content analysis of qualitative data revealed 4 major themes around coaches' and champions' experiences and perspectives of PT. These themes include Challenges, Facilitators, Successes, and Suggestions for PT Improvement. CONCLUSION: Primary care and infectious diseases/HIV clinics can help improve HIV Care Continuum outcomes through increasing their capacity to serve the needs of their clients, as facilitated through coaches and clinic champions. Since no single clinic or clinic patient population is alike, it is important work within organizations to address specific needs and leverage unique skillsets. Future PT initiatives can learn from experiences of this PT program to optimize the effectiveness of their programs.


Assuntos
Infecções por HIV , Atenção Primária à Saúde , Continuidade da Assistência ao Paciente , Grupos Focais , Infecções por HIV/terapia , Humanos , Objetivos Organizacionais , Estados Unidos
3.
Clin Infect Dis ; 70(7): 1267-1274, 2020 03 17.
Artigo em Inglês | MEDLINE | ID: mdl-31100116

RESUMO

BACKGROUND: Recent studies have reported weight gain in virologically suppressed persons living with human immunodeficiency virus (PLWH) switched from older antiretroviral therapy (ART) to newer integrase strand transfer inhibitor (INSTI)-based regimens. In this study, we investigated whether weight gain differs among treatment-naive PLWH starting INSTI-based regimens compared to other ART regimens. METHODS: Adult, treatment-naive PLWH in the Vanderbilt Comprehensive Care Clinic cohort initiating INSTI-, protease inhibitor (PI)-, and nonnucleoside reverse transcriptase inhibitor (NNRTI)-based ART between January 2007 and June 2016 were included. We used multivariable linear mixed-effects models to generate marginal predictions of weights over time, adjusting for baseline clinical and demographic characteristics. We used restricted cubic splines to relax linearity assumptions and bootstrapping to generate 95% confidence intervals. RESULTS: Among 1152 ART-naive PLWH, 351 initiated INSTI-based regimens (135 dolutegravir, 153 elvitegravir, and 63 raltegravir), 86% were male, and 49% were white. At ART initiation, median age was 35 years, body mass index was 25.1 kg/m2, and CD4+ T-cell count was 318 cells/µL. Virologic suppression at 18 months was similar between different ART classes. At all examined study time points, weight gain was highest among PLWH starting dolutegravir. At 18 months, PLWH on dolutegravir gained 6.0 kg, compared to 2.6 kg for NNRTIs (P < .05), and 0.5 kg for elvitegravir (P < .05). PLWH starting dolutegravir also gained more weight at 18 months compared to raltegravir (3.4 kg) and PIs (4.1 kg), though these differences were not statistically significant. CONCLUSIONS: Treatment-naive PLWH starting dolutegravir-based regimens gained significantly more weight at 18 months than those starting NNRTI-based and elvitegravir-based regimens.


Assuntos
Infecções por HIV , Inibidores de Integrase de HIV , Adulto , Feminino , Infecções por HIV/tratamento farmacológico , Inibidores de Integrase de HIV/uso terapêutico , Compostos Heterocíclicos com 3 Anéis/uso terapêutico , Humanos , Masculino , Oxazinas , Piperazinas , Piridonas , Inibidores da Transcriptase Reversa/uso terapêutico , Aumento de Peso
5.
AIDS Res Hum Retroviruses ; 35(10): 960-967, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31407605

RESUMO

Incidence of noncommunicable diseases (NCDs), including cardiovascular disease (CVD), cirrhosis, and non-AIDS-defining cancers (NADCs), have been associated with HIV viremia, CD4 cell counts, and CD4/CD8 ratio in persons living with HIV (PLWH). This study examined the importance of these markers to mortality risk following NCD diagnosis. We examined factors associated with mortality following incident CVD, cirrhosis, or NADCs in a clinical cohort of PLWH between 1998 and 2015. We calculated Kaplan-Meier estimates and used multivariable Cox proportional hazard models. We included 341 patients with NCDs (CVD = 169, cancer = 103, and cirrhosis = 67), of whom 129 died. Median age at NCD diagnosis was 49 years and median proportion of time before NCD with virologic suppression was 64%. Median survival after CVD was longer than for cancer or cirrhosis (11.6 years vs. 4.8 and 3.4 years, respectively; log rank test p < .001). In multivariable Cox proportional hazard models, higher CD4/CD8 ratio preceding NCD (adjusted hazard ratio [aHR] per 0.1 increase = 0.92 [95% confidence interval 0.85-0.99]) and higher CD4 nadir (aHR per 100 cells/µL = 0.84 [0.72-0.97]) were associated with decreased mortality risk. Neither CD4 cell count before NCD nor HIV viremia was statistically associated with mortality in adjusted models. When restricted to 116 patients with virologic suppression for ≥80% of time before NCD, only CD4 nadir was associated with mortality risk. Low CD4/CD8 ratio and CD4 nadir were associated with increased mortality risk after NCD, suggesting that prior immunosuppression or ongoing immune imbalance remain important for outcomes following serious NCDs.


Assuntos
Contagem de Linfócito CD4 , Relação CD4-CD8 , Doenças Cardiovasculares/imunologia , Infecções por HIV/imunologia , HIV-1 , Cirrose Hepática/imunologia , Neoplasias/imunologia , Adulto , Idoso , Animais , Fármacos Anti-HIV/uso terapêutico , Doenças Cardiovasculares/mortalidade , Causas de Morte , Doença Crônica/epidemiologia , Comorbidade , Etnicidade/estatística & dados numéricos , Feminino , Cobaias , Infecções por HIV/tratamento farmacológico , Infecções por HIV/mortalidade , Humanos , Estimativa de Kaplan-Meier , Cirrose Hepática/mortalidade , Linfopenia/etiologia , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Neoplasias/mortalidade , Modelos de Riscos Proporcionais , RNA Viral/sangue , Fatores de Risco , Estados Unidos/epidemiologia , Adulto Jovem
6.
AIDS Care ; 30(11): 1426-1434, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29678121

RESUMO

Retention in care and viral suppression are critical to delaying HIV progression and reducing transmission. Neighborhood socioeconomic context (NSEC) may affect HIV care receipt. We therefore assessed NSEC's impact on retention and viral suppression in a diverse HIV clinical cohort. HIV-positive adults with ≥1 visit at the Vanderbilt Comprehensive Care Clinic and 5-digit ZIP code tabulation area (ZCTA) information between 2008 and 2012 contributed. NSEC z-score indices used neighborhood-level socioeconomic indicators for poverty, education, labor-force participation, proportion of males, median age, and proportion of residents of black race by ZCTA. Retention was defined as ≥2 HIV care visits per calendar year, >90 days apart. Viral suppression was defined as an HIV-1 RNA <200 copies/mL at last measurement per calendar year. Modified Poisson regression was used to estimate risk ratios (RR) and 95% confidence intervals (CI). Among 2272 and 2541 adults included for retention and viral suppression analyses, respectively, median age and CD4 count at enrollment were approximately 38 (1st and 3rd quartile: 30, 44) years and 351 (176, 540) cells/µL, respectively, while 24% were female, and 39% were black. Across 243 ZCTAs, median NSEC z-score was 0.09 (-0.66, 0.48). Overall, 79% of person-time contributed was retained and 74% was virally suppressed. In adjusted models, NSEC was not associated with retention, though being in the 4th vs. 1st NSEC quartile was associated with lack of viral suppression (RR = 0.88; 95% CI: 0.80-0.97). Residing in the most adverse NSEC was associated with lack of viral suppression. Future studies are needed to confirm this finding.


Assuntos
Continuidade da Assistência ao Paciente , Infecções por HIV/terapia , Fatores Socioeconômicos , Adolescente , Adulto , Idoso , Instituições de Assistência Ambulatorial , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pobreza , Características de Residência , Estados Unidos , Carga Viral , Adulto Jovem
7.
J Acquir Immune Defic Syndr ; 76(5): 527-531, 2017 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-28825943

RESUMO

BACKGROUND: With the introduction of integrase strand transfer inhibitor (INSTI)-based antiretroviral therapy, persons living with HIV have a potent new treatment option. Recently, providers at our large treatment clinic noted weight gain in several patients who switched from efavirenz/tenofovir disoproxil fumarate/emtricitabine (EFV/TDF/FTC) to dolutegravir/abacavir/lamivudine (DTG/ABC/3TC). In this study, we evaluated weight change in patients with sustained virologic suppression who switched from EFV/TDF/FTC to an INSTI-containing regimen. METHODS: We performed a retrospective observational cohort study among adults on EFV/TDF/FTC for at least 2 years who had virologic suppression. We assessed weight change over 18 months in patients who switched from EFV/TDF/FTC to an INSTI-containing regimen or a protease inhibitor (PI)-containing regimen versus those on EFV/TDF/FTC over the same period. In a subgroup analysis, we compared patients switched to DTG/ABC/3TC versus raltegravir- or elvitegravir-containing regimens. RESULTS: A total of 495 patients were included: 136 who switched from EFV/TDF/FTC to an INSTI-containing regimen and 34 switched to a PI-containing regimen. Patients switched to an INSTI-containing regimen gained an average of 2.9 kg at 18 months compared with 0.9 kg among those continued on EFV/TDF/FTC (P = 0.003), whereas those switched to a PI regimen gained 0.7 kg (P = 0.81). Among INSTI regimens, those switched to DTG/ABC/3TC gained the most weight at 18 months (5.3 kg, P = 0.001 compared with EFV/TDF/FTC). CONCLUSION: Adults living with HIV with viral suppression gained significantly more weight after switching from daily, fixed-dose EFV/TDF/FTC to an INSTI-based regimen compared with those remaining on EFV/TDF/FTC. This weight gain was greatest among patients switching to DTG/ABC/3TC.


Assuntos
Benzoxazinas/uso terapêutico , Infecções por HIV/tratamento farmacológico , Inibidores de Integrase de HIV/efeitos adversos , Inibidores de Integrase de HIV/uso terapêutico , Inibidores da Transcriptase Reversa/uso terapêutico , Aumento de Peso , Adulto , Alcinos , Estudos de Coortes , Ciclopropanos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
8.
J Int Assoc Provid AIDS Care ; 16(4): 347-352, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28560901

RESUMO

Among younger men who have sex with men (MSM), the incidence of HIV is rising nationally. Of the 281 persons who entered into care at a large HIV clinic in the southeastern United States in 2010 to 2012, 78 (27.8%) were <25 years old at the time of diagnosis. Those in the younger group were more likely than those aged ≥25 to be black (59.0% versus 37.4%), MSM (78.2% versus 55.2%), and to have a longer median time from diagnosis to entry into care (71 versus 53 days; P < .05 each). In adjusted survival analysis, persons of black race were less likely to enter care after diagnosis than those of nonblack race (hazard ratio = 0.75, P = .02). Young MSM represent an important target population for prevention and HIV testing interventions, and there is a need to shorten the time from diagnosis to linkage to care, particularly in persons aged <25 and of black race.


Assuntos
Negro ou Afro-Americano/estatística & dados numéricos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Tempo para o Tratamento , Adulto , Fatores Etários , Fármacos Anti-HIV/uso terapêutico , Contagem de Linfócito CD4 , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/etnologia , Humanos , Incidência , Masculino , Estudos Retrospectivos , Fatores de Risco , Sudeste dos Estados Unidos/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto Jovem
9.
AIDS Res Hum Retroviruses ; 33(10): 1027-1034, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28462622

RESUMO

Longitudinal studies of retention in care (RIC) and viral suppression (VS) in the southeastern United States (US), a region disproportionately affected by HIV infection, are lacking. HIV-infected adults with ≥1 medical visit at the Vanderbilt Comprehensive Care Clinic (Nashville, Tennessee) from 2004 to 2013 were included. RIC was ≥2 (a) laboratory dates [CD4+ counts or HIV-1 viral loads (VLs)] or (b) provider encounters and/or laboratory dates in the year of interest, ≥90 days apart. VS was a VL of <200 copies/ml at last measurement in the year of interest. Modified Poisson regression estimated relative risk (RR) of RIC and VS, adjusting for age, race, sex, HIV transmission risk, and socioeconomic status (SES). Among 4,641 persons, 76.8% achieved RIC and 70.2% achieved VS. RIC and VS increased from 2004 to 2013 (p < .001 each). For lack of RIC, younger patients (RR = 1.2 and RR = 1.1, 18-24 and 25-34 vs. 35-44 year-olds, respectively), Blacks (RR = 1.3 vs. Whites), and injection drug users (IDUs) (RR = 1.2 vs. heterosexual contact [Hetero]) fared worse (p < .05 each); those with male-to-male sexual contact fared better (RR = 0.8 vs. Hetero, p < .05). For lack of VS, younger patients (RR = 1.3 and RR = 1.2, 18-24 and 25-34 vs. 35-44 year olds, respectively), Blacks (RR 1.3 vs. Whites), Females (RR = 1.1 vs. Males), IDUs (RR 1.3 vs. Hetero), and those with low SES (RR = 1.1 vs. not low SES) fared worse (p < .05, each). RIC and VS increased over time, suggesting that efforts to improve outcomes have been effective. However, disparities persist and resources should focus on groups most at risk.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Continuidade da Assistência ao Paciente/tendências , Infecções por HIV/tratamento farmacológico , Cooperação do Paciente/estatística & dados numéricos , Assistência Centrada no Paciente/métodos , Adolescente , Adulto , Idoso , Feminino , Seguimentos , Infecções por HIV/transmissão , Infecções por HIV/virologia , HIV-1/efeitos dos fármacos , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Comportamento Sexual , Sudeste dos Estados Unidos , Resultado do Tratamento , Carga Viral , Adulto Jovem
10.
Infection ; 45(5): 705-707, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28508238

RESUMO

Recurrent anogenital herpes simplex virus infections are common in patients with human immunodeficiency virus (HIV), of whom approximately 5% develop resistance to acyclovir. We present a case of a 49-year-old man with HIV who had an 8-year history of recurrent left inguinal herpes simplex virus type 2 ulcerations. He initially responded to oral acyclovir, but developed resistance to acyclovir and eventually foscarnet. The lesion progressed to a large hypertrophic mass that required surgical excision, which led to resolution without recurrences. Our case highlights the importance of surgical excision as a treatment option in refractory herpes simplex virus anogenital infections.


Assuntos
Aciclovir/farmacologia , Antivirais/farmacologia , Farmacorresistência Viral , Foscarnet/farmacologia , Herpes Genital/tratamento farmacológico , Herpesvirus Humano 2/efeitos dos fármacos , Infecções por HIV/complicações , Herpes Genital/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade
11.
AIDS ; 30(6): 899-908, 2016 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-26959354

RESUMO

OBJECTIVE: In virologically suppressed HIV-infected adults, noncommunicable diseases (NCDs) have been associated with immune senescence and low CD4/CD8 lymphocyte ratio. Age differences in the relationship between CD4/CD8 ratio and NCDs have not been described. DESIGN: Observational cohort study. METHODS: We assessed CD4/CD8 ratio and incident NCDs (cardiovascular, cancer, liver, and renal diseases) in HIV-infected adults started on antiretroviral therapy between 1998 and 2012. Study inclusion began once patients maintained virologic suppression for 12 months (defined as baseline). We examined age and baseline CD4/CD8 ratio and used Cox proportional hazard models to assess baseline CD4/CD8 ratio and NCDs. RESULTS: This study included 2006 patients. Low baseline CD4/CD8 ratio was associated with older age, male sex, and low CD4 lymphocyte counts. In models adjusting for CD4 lymphocyte count, CD4/CD8 ratio was inversely associated with age (P < 0.01). Among all patients, 182 had incident NCDs, including 46 with coronary artery disease (CAD) events. CD4/CD8 ratio was inversely associated with risk of CAD events [adjusted HR per 0.1 increase in CD4/CD8 ratio = 0.87, 95% confidence interval (CI): 0.76-0.99, P = 0.03]. This association was driven by those under age 50 years (adjusted HR 0.83 [0.70-0.97], P = 0.02) vs. those over age 50 years (adjusted HR = 0.96 [0.79-1.18], P = 0.71). CD4/CD8 ratio was not significantly associated with incident noncardiac NCDs. CONCLUSIONS: Higher CD4/CD8 ratio after 1 year of HIV virologic suppression was independently predictive of decreased CAD risk, particularly among younger adults. Advanced immune senescence may contribute to CAD events in younger HIV patients on antiretroviral therapy.


Assuntos
Antirretrovirais/uso terapêutico , Relação CD4-CD8 , Doenças Cardiovasculares/epidemiologia , Infecções por HIV/complicações , Nefropatias/epidemiologia , Hepatopatias/epidemiologia , Neoplasias/epidemiologia , Adulto , Fatores Etários , Estudos de Coortes , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Medição de Risco
12.
AIDS Patient Care STDS ; 29(5): 240-7, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25746288

RESUMO

Successful treatment of HIV infection requires regular clinical follow-up. A previously published risk-prediction tool (RPT) utilizing data from the electronic health record (EHR) including medication adherence, previous appointment attendance, substance abuse, recent CD4+ count, prior antiretroviral therapy (ART) exposure, prior treatment failure, and recent HIV-1 viral load (VL) has been shown to predict virologic failure at 1 year. If this same tool could be used to predict the more immediate event of appointment attendance, high-risk patients could be identified and interventions could be targeted to improve this outcome. We conducted an observational cohort study at the Vanderbilt Comprehensive Care Clinic from August 2013 through March 2014. Patients with routine medical appointments and most recent HIV-1 VL >200 copies/mL were included. Risk scores for a modified RPT were calculated based on data from the EHR. Odds ratios (OR) for missing the next appointment were estimated using multivariable logistic regression. Among 510 persons included, median age was 39 years, 74% were male, 55% were black, median CD4+ count was 327 cells/mm(3) [Interquartile Range (IQR): 142-560], and median HIV-1 VL was 21,818 copies/mL (IQR: 2,030-69,597). Medium [OR 3.95, 95% confidence interval (CI) 2.08-7.50, p-value<0.01] and high (OR 9.55, 95% CI 4.31-21.16, p-value<0.01) vs. low RPT risk scores were independently associated with missing the next appointment. RPT scores, constructed using readily available data, allow for risk-stratification of HIV medical appointment non-attendance and could support targeting limited resources to improve appointment adherence in groups most at-risk of poor HIV outcomes.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Agendamento de Consultas , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Aceitação pelo Paciente de Cuidados de Saúde , Viremia/fisiopatologia , Adulto , Doença Crônica , Estudos de Coortes , HIV-1/efeitos dos fármacos , Humanos , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Risco , Falha de Tratamento , Carga Viral , Viremia/tratamento farmacológico
13.
J Acquir Immune Defic Syndr ; 57(4): 305-10, 2011 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-21423024

RESUMO

OBJECTIVE: To evaluate the short-term and long-term effects of highly active antiretroviral therapy (HAART) on tuberculosis (TB) risk compared with risk without HAART in a low TB incidence setting. DESIGN: An observational cohort study among HIV-infected persons in care at the Comprehensive Care Center (Nashville, TN) between January 1998 and December 2008. METHODS: A marginal structural model was used to estimate the effect of HAART on short-term (≤180 days) and long-term (>180 days) TB risk, with CD4⁺ lymphocyte count incorporated as a time-updated covariate. RESULTS: Of 4534 HIV-infected patients, 34 developed TB (165 per 100,000 person-years; 20,581 person-years of follow-up). Seventeen cases occurred among persons not on HAART or >30 days after HAART discontinuation (212 per 100,000 person-years; 8019 person-years of follow-up). Seventeen occurred among persons on HAART (135 per 100,000 person-years; 12,562 person-years of follow-up); 10 in the first 180 days (402 per 100,000 person-years; 2489 person-years of follow-up); and 7 after more than 180 days (69 per 100,000 person-years; 10,073 person-years of follow-up). After adjusting for the most recent CD4⁺ lymphocyte count, the risk of TB in the first 180 days of HAART exposure relative to no HAART was 0.68 (0.14-3.22, P = 0.63). CONCLUSIONS: In this low TB incidence setting, the TB rate in the first 180 days of HAART was almost twice as high as persons not on HAART. However, after adjusting for most recent CD4⁺ count, there was no significant difference in TB risk between these 2 groups. This suggests that low recent CD4⁺ lymphocyte count influences TB risk during the first 180 days of HAART.


Assuntos
Fármacos Anti-HIV/efeitos adversos , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Tuberculose/complicações , Adulto , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Infecções por HIV/imunologia , Humanos , Incidência , Masculino , Fatores de Risco , Tennessee/epidemiologia , Tuberculose/epidemiologia
14.
AIDS Res Hum Retroviruses ; 27(2): 201-9, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20929395

RESUMO

Detection of drug resistance is critical for determining antiretroviral treatment options. Ultradeep pyrosequencing (UDPS; 454 Life Sciences) is capable of detecting virus variant subpopulations with much greater sensitivity than population sequencing, which typically has a detection limit around 20%. UDPS of the HIV-1 reverse transcriptase (RT) (amino acids 56-120) was performed to detect the key mutations K65R and L74V associated with tenofovir and abacavir use. Plasma specimens from subjects with persistent rebound viremia following suppression on tenofovir (n = 8) or abacavir (n = 9)-based therapy were studied. Samples from a subject treated with zidovudine/lamivudine/efavirenz with a similar loss of virologic response served as a control. HIV-1 plasma RNA was ≥3.68 log(10) copies/ml at all time points sequenced. The median number of UDPS sequences analyzed/time point was 33,246. Among the eight tenofovir-treated subjects, three showed high-frequency (>20%) RT K65R at the time of failure, whereas one showed low-frequency (<20%) L74V; no low-frequency K65R was detected in these subjects. Among the nine abacavir-treated subjects, three showed low-frequency K65R; no L74V was detected in these patients. No K65R or L74V was detected in the samples from the control subject. At failure, other RT mutations were detected, including low-frequency NNRTI-resistant species detected at ≥1 time point in nine subjects; the key NNRTI mutation K103N, however, was always observed at >20% frequency. Although UDPS is useful in the detection of low-frequency subpopulations with transmitted resistance in antiviral-naive patients, it may have less utility in treatment-experienced patients with persistent viremia on therapy.


Assuntos
Adenina/análogos & derivados , Didesoxinucleosídeos/farmacologia , HIV-1/efeitos dos fármacos , Organofosfonatos/farmacologia , Inibidores da Transcriptase Reversa/farmacologia , Viremia , Adenina/farmacologia , HIV-1/genética , HIV-1/isolamento & purificação , Humanos , Tenofovir
15.
PLoS One ; 4(9): e6961, 2009 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-19742315

RESUMO

BACKGROUND: Pregnancy has been associated with a decreased risk of HIV disease progression in the highly active antiretroviral therapy (HAART) era. The effect of timing of HAART initiation relative to pregnancy on maternal virologic, immunologic and clinical outcomes has not been assessed. METHODS: We conducted a retrospective cohort study from 1997-2005 among 112 pregnant HIV-infected women who started HAART before (N = 12), during (N = 70) or after pregnancy (N = 30). RESULTS: Women initiating HAART before pregnancy had lower CD4+ nadir and higher baseline HIV-1 RNA. Women initiating HAART after pregnancy were more likely to receive triple-nucleoside reverse transcriptase inhibitors. Multivariable analyses adjusted for baseline CD4+ lymphocytes, baseline HIV-1 RNA, age, race, CD4+ lymphocyte count nadir, history of ADE, prior use of non-HAART ART, type of HAART regimen, prior pregnancies, and date of HAART start. In these models, women initiating HAART during pregnancy had better 6-month HIV-1 RNA and CD4+ changes than those initiating HAART after pregnancy (-0.35 vs. 0.10 log(10) copies/mL, P = 0.03 and 183.8 vs. -70.8 cells/mm(3), P = 0.03, respectively) but similar to those initiating HAART before pregnancy (-0.32 log(10) copies/mL, P = 0.96 and 155.8 cells/mm(3), P = 0.81, respectively). There were 3 (25%) AIDS-defining events or deaths in women initiating HAART before pregnancy, 3 (4%) in those initiating HAART during pregnancy, and 5 (17%) in those initiating after pregnancy (P = 0.01). There were no statistical differences in rates of HIV disease progression between groups. CONCLUSIONS: HAART initiation during pregnancy was associated with better immunologic and virologic responses than initiation after pregnancy.


Assuntos
Terapia Antirretroviral de Alta Atividade/métodos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/transmissão , HIV-1/metabolismo , Adulto , Contagem de Linfócito CD4 , Estudos de Coortes , Progressão da Doença , Feminino , Humanos , Exposição Materna , Análise Multivariada , Gravidez , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
16.
AIDS Behav ; 13(6): 1129-42, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19763810

RESUMO

Few studies have examined the psychosocial factors associated with sexual transmission behaviors among HIV-positive men who have sex with men (MSM), heterosexual men (MSW) and women. We enrolled 1,050 sexually active HIV-positive patients at seven HIV clinics in six US cities as part of a clinic-based behavioral intervention. We describe the sexual transmission behaviors and examine demographic, clinical, psychosocial, and clinic prevention variables associated with unprotected anal or vaginal intercourse (UAVI). Twenty-three percent of MSM, 12.3% of MSW and 27.8% of women engaged in UAVI with partners perceived to be HIV-negative or of unknown serostatus. Among MSM and MSW, having multiple partners and lower self-efficacy were associated with increased odds of UAVI. Self-rating one's health status as excellent/very good was a risk factor for UAVI among MSM. Among women, binge drinking and stressful life events were associated with UAVI. These findings identify variables that warrant attention in targeted interventions.


Assuntos
Infecções por HIV/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Heterossexualidade/psicologia , Homossexualidade Masculina/psicologia , Adulto , Demografia , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Heterossexualidade/estatística & dados numéricos , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Parceiros Sexuais/psicologia , Apoio Social , Inquéritos e Questionários , Estados Unidos
17.
J Infect Dis ; 199(7): 991-8, 2009 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-19220139

RESUMO

BACKGROUND: There are conflicting data regarding race, sex, and mortality among persons infected with human immunodeficiency virus (HIV). We studied all-cause mortality among persons in care during the highly-active antiretroviral therapy (HAART) era. METHODS: This retrospective cohort study included patients who made>or=1 clinic visit from January 1998 through December 2005. RESULTS: Of 2605 patients (with 6657 person-years of follow-up), 38% were black and 24% were female. The percentage of time in care while receiving HAART was lower for blacks than for nonblacks (47% vs. 76%; P<.001) and for females than for males (57% vs. 71%; P=.01). There were 253 deaths (38 per 1000 person-years). After adjustment for characteristics at baseline, death was associated with black race (hazard ratio [HR], 1.33; P .04), female sex (HR, 1.53; P .007), injection drug use (IDU) as a risk factor for HIV infection (HR, 1.61; P .009), older age (HR, 1.45 per 10 years; P<.001), a lower CD4 cell count (HR, 0.59 for 200 vs. 350 cells/mm3; P<.001) and a higher HIV type 1 RNA level (HR, 1.35; P<.001). After adjustment for the length of time that HAART was received, black race (HR, 1.00; P .99) and IDU (HR, 1.37; P .09) were no longer associated with death, but female sex was (HR, 1.62; P=.002). CONCLUSIONS: Race-associated differences in mortality likely resulted from HAART use. Women had an increased risk of death even after adjustment for HAART use. Addressing racial disparities will require improved HAART utilization. Increased mortality among women requires further study.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Infecções por HIV/mortalidade , Grupos Raciais , Adulto , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Infecções por HIV/etnologia , Humanos , Masculino , Análise Multivariada , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores Sexuais , Fatores de Tempo
18.
AIDS Educ Prev ; 21(1): 55-66, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19243231

RESUMO

The Centers for Disease Control and Prevention have recommended that HIV care clinics incorporate prevention into clinical practice. This report summarizes HIV care providers' attitudes and counseling practices before and after they received training to deliver a counseling intervention to patients. Providers at seven HIV clinics received training in delivering a counseling intervention (Positive STEPs) to their patients and completed baseline and follow-up questionnaires to measure changes in prevention parameters. A cohort of patients at each clinic was independently surveyed about counseling experiences. Compared with the pretraining period, providers' self-ratings collected after they initiated the intervention showed significant (p < .05) positive changes in attitudes, comfort, self-efficacy, and frequency of delivering prevention counseling. Patients reported an increase in prevention counseling received from providers after training. The findings indicate that the training and delivery of the Positive STEPs intervention was associated with positive changes in providers' attitudes and HIV prevention counseling to patients.


Assuntos
Atitude do Pessoal de Saúde , Aconselhamento/métodos , Infecções por HIV/prevenção & controle , Pessoal de Saúde/educação , Adulto , Idoso , Estudos de Coortes , Feminino , Infecções por HIV/psicologia , Pessoal de Saúde/psicologia , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Comportamento de Redução do Risco , Comportamento Sexual , Adulto Jovem
19.
J Clin Epidemiol ; 62(7): 729-37, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19108987

RESUMO

OBJECTIVE: To evaluate a model for predicting time to AIDS or death among HIV-infected persons initiating highly active antiretroviral therapy (HAART). STUDY DESIGN AND SETTING: The model was constructed from 1,891 HAART initiators in the Collaborations in HIV Outcomes Research/US (CHORUS) cohort. The model's predictive ability was assessed using internal bootstrap validation techniques and data from 716 HAART initiators at Johns Hopkins HIV Clinical Cohort (JHHCC) in whom HIV disease was, in general, more advanced. RESULTS: The estimated concordance statistic was 0.632 with the bootstrap method and 0.625 in JHHCC. Mean predicted and observed 3-year AIDS-free survival for JHHCC was 0.76 and 0.73 (95% confidence interval [CI], 0.69-0.77), respectively; mean predicted and observed 5-year AIDS-free survival was 0.69 and 0.57 (95% CI, 0.52-0.62), respectively. Sensitivity analyses showed that the discrepancy between predicted and observed AIDS-free survival after 3 years could be due to differences in lost-to-follow-up rates between cohorts. CONCLUSION: The model was fair at using baseline characteristics to order patients' risk of disease progression, but did not accurately predict AIDS-free survival >3 years after HAART initiation. Different variable definitions, patient characteristics, and loss to follow-up highlight the challenges of using data from one cohort to predict AIDS-free survival in an independent cohort.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , HIV-1/isolamento & purificação , Adulto , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Progressão da Doença , Métodos Epidemiológicos , Feminino , Infecções por HIV/imunologia , Infecções por HIV/virologia , Humanos , Masculino , Cooperação do Paciente , Prognóstico , Resultado do Tratamento , Carga Viral
20.
J Natl Med Assoc ; 100(12): 1417-24, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19110909

RESUMO

BACKGROUND/OBJECTIVE: HIV infection has a devastating impact on individual and public health, and affects populations disproportionately. Treatment with antiretroviral therapy (ART) saves lives, but long-term adherence to ART is critical to its success. We performed an observational cohort study to determine the influence of race, sex and other sociodemographic factors on early ART discontinuations among HIV-infected persons. METHODS: TennCare-enrolled adults of black or white non-Hispanic race beginning ART with either a non-nucleoside reverse transcriptase inhibitor (NNRTI) or protease inhibitor (PI) between 1996-2003 (N=3654) were assessed for early discontinuation. A subgroup of discontinuations was validated using the primary medical record. RESULTS: Blacks were more likely than whites to discontinue NNRTIs (37 vs. 28%; P=0.003) and PIs (36 vs. 25%; P < or = 0.001). In multivariable models adjusting for race, sex, age, early HIV-related medical encounter, urban residence and TennCare enrollment category, black race, female sex and younger age were independent predictors of discontinuation among those starting PIs. Among persons starting NNRTIs, black race, younger age and a disability-based enrollment category predicted early drug discontinuation, but female sex did not. CONCLUSIONS: Our results suggest that sociodemographic factors were associated with early NNRTI and PI discontinuation in this population, and some factors were ART class specific.


Assuntos
Antirretrovirais/uso terapêutico , Infecções por HIV/tratamento farmacológico , Adesão à Medicação , Adolescente , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Inibidores de Proteases/uso terapêutico , Inibidores da Transcriptase Reversa/uso terapêutico , Fatores Socioeconômicos , Tennessee , População Branca/estatística & dados numéricos , Adulto Jovem
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