Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 199
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
AIDS Behav ; 2024 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-38703339

RESUMO

Men who have sex with men (MSM) are at increased risk for certain types of chronic diseases and mental health problems. Despite having extended survival in the highly active antiretroviral therapy (HAART) era, MSM living with HIV contend with aging-related diseases and complications with treatment. Consequent hospitalizations incur high costs, fear, low quality of life, and frailty. Unlike heterosexual men, MSM experience more structural violence and "syndemics" of psychosocial factors that not only accelerate HIV acquisition and transmission risk but also may increase morbidity, leading to greater rates of hospitalization. We aim to examine the impact of "syndemic" psychosocial factors on the incidence of hospitalization among geographically diverse MSM in the US. Participants were 1760 MSM from the Multicenter AIDS Cohort Study (MACS) between 2004 and 2019. We examined the relationship between six psychosocial factors (depression, stimulant use, smoking, heroin use, childhood sexual abuse, and intimate partner violence) and incident hospitalization (admission to a hospital for treatment). We found a positive dose-response relationship between the number of syndemic factors and hospitalization. MSM reporting five or more syndemic factors had over twice the risk of hospitalization compared to MSM without syndemic factors [aRR = 2.14 (95% CI = 1.56, 2.94)]. Psychosocial factors synergistically increased hospitalizations over time. The positive dose-response relationship between the number of syndemic factors and hospitalization and the synergistic effects of these factors underscore the need for interventions that disentangle the syndemics to reduce hospitalization and related costs and improve the quality of life among MSM.

2.
Clin Infect Dis ; 77(2): 265-271, 2023 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-36974507

RESUMO

BACKGROUND: Women are at risk for weight gain during the transition to menopause, but few have examined the contribution of menopause to weight gain in women with human immunodeficiency virus (WWH). METHODS: From 2000 to 2013, participants (621 WWH; 218 without HIV [WWOH]) from the Women's Interagency HIV Study were categorized by menopausal phase using serial measures of anti-Müllerian hormone (AMH). Multivariable linear mixed models examined the association of menopausal phase with body mass index (BMI) and waist circumference (WC) trajectory, stratified by HIV status. RESULTS: In models controlled for chronologic age, the estimated effects (95% confidence interval) of menopausal phase on annual rate of BMI change across early perimenopause, late perimenopause, and menopause, respectively, compared to premenopause were -0.55% (-.80 to -.30), -0.29% (-.61 to .03), and -0.67% (-1.12 to -.20) in WWH, whereas estimated effects were 0.43% (-.01 to .87) and 0.15% (-.42 to .71) across early and late perimenopause, respectively, and -0.40% (-1.24 to .45) across menopause in WWOH. The estimated effects on rate of WC change were negative across early perimenopause (-0.21% [-.44 to .03]) and menopause (-0.12% [-.5 to .26]) and positive across late perimenopause (0.18% [-.10 to .45]) in WWH, and positive across all 3 menopausal phases in WWOH, but these effects were not statistically significant. CONCLUSIONS: In WWH, the menopausal transition was associated with BMI and WC trajectories that were mostly in a negative direction and opposite from WWOH after adjusting for age, suggesting that HIV blunts weight gain during the menopausal transition.


Assuntos
Infecções por HIV , HIV , Feminino , Humanos , Menopausa , Índice de Massa Corporal , Aumento de Peso , Composição Corporal , Infecções por HIV/epidemiologia
3.
Clin Infect Dis ; 77(2): 258-264, 2023 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-37021689

RESUMO

BACKGROUND: Direct-acting antiviral (DAA) therapy for hepatitis C virus (HCV) is well tolerated, cost-effective, and yields high sustained virologic response rates, yet it has remained financially inaccessible to many patients. METHODS: Participants of the Women's Interagency HIV Study (an observational US cohort) with human immunodeficiency virus (HIV) and HCV (RNA+) reporting no prior hepatitis C treatment were followed for DAA initiation (2015-2019). We estimated risk ratios (RRs) of the relationship between time-varying health insurance status and DAA initiation, adjusting for confounders with stabilized inverse probability weights. We also estimated weighted cumulative incidences of DAA initiation by health insurance status. RESULTS: A total of 139 women (74% Black) were included; at baseline, the median age was 55 years and 86% were insured. Most had annual household incomes ≤$18 000 (85%); advanced liver fibrosis (21%), alcohol use (45%), and recreational drug use (35%) were common. Across 439 subsequent semiannual visits, 88 women (63%) reported DAA initiation. Compared with no health insurance, health insurance increased the likelihood of reporting DAA initiation at a given visit (RR, 4.94; 95% confidence limit [CL], 1.92 to 12.8). At 2 years, the weighted cumulative incidence of DAA initiation was higher among the insured (51.2%; 95% CL, 43.3% to 60.6%) than the uninsured (3.5%; 95% CL, 0.8% to 14.6%). CONCLUSIONS: Accounting for clinical, behavioral, and sociodemographic factors over time, health insurance had a substantial positive effect on DAA initiation. Interventions to increase insurance coverage should be prioritized to increase HCV curative therapy uptake for persons with HIV.


Assuntos
Infecções por HIV , Hepatite C Crônica , Hepatite C , Humanos , Feminino , Pessoa de Meia-Idade , Antivirais/efeitos adversos , Hepacivirus , HIV , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Resultado do Tratamento , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Seguro Saúde
4.
AIDS Behav ; 27(10): 3171-3182, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36943601

RESUMO

Among sexual minority men (SMM), internalized homophobia (IH) has been consistently associated with increased depression symptoms. However, some SMM experiencing IH demonstrate resilience to buffer against depression symptoms. In this analysis, we used the Stress Process Model (SPM) as a conceptual framework to explore individual-level psychosocial resilience (ILPR) factors serving as a buffer of the IH-depression relationship. To utilize the SPM to explore whether four ILPR factors, including volunteerism, optimism, religiosity/spirituality, and global resiliency measure mediate the relationship between IH and depression symptoms among middle-aged and older SMM living with and without HIV. We used exploratory and confirmatory factor analysis to construct measurement models for the four ILPR factors. We examined whether the four ILPR factors mediated the IH-depression relationship. IH was significantly and positively associated with depression symptoms. There was a partial mediation of the IH-depression association by the four ILPR. Specifically, we found statistically significant indirect effects of optimism and the global resilience measure and supporting buffering effects of the IH-depression association. Although, the indirect effects religiosity/spirituality on the IH-depression relationship was significant, it did not support a buffering of effect. The indirect effects of volunteerism were not statistically significant. Our findings highlight the potential role of ILPR factors in the development of resilience against the negative effects of IH. Implications of these results for future research and practice are discussed.


Assuntos
Infecções por HIV , Minorias Sexuais e de Gênero , Masculino , Pessoa de Meia-Idade , Humanos , Idoso , Homofobia/psicologia , Homossexualidade Masculina/psicologia , Depressão/epidemiologia , Depressão/psicologia , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia
5.
AIDS Behav ; 27(12): 4094-4105, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37418062

RESUMO

Mental health and substance use epidemics interact to create psychosocial syndemics, accelerating poor health outcomes. Using latent class and latent transition analyses, we identified psychosocial syndemic phenotypes and their longitudinal transition pathways among sexual minority men (SMM) in the Multicenter AIDS Cohort Study (MACS, n = 3,384, mean age 44, 29% non-Hispanic Black, 51% with HIV). Self-reported depressive symptoms and substance use indices (i.e., smoking, hazardous drinking, marijuana, stimulant, and popper use) at the index visit, 3-year and 6-year follow-up were used to model psychosocial syndemics. Four latent classes were identified: "poly-behavioral" (19.4%), "smoking and depression" (21.7%), "illicit drug use" (13.8%), and "no conditions" (45.1%). Across all classes, over 80% of SMM remained in that same class over the follow-ups. SMM who experienced certain psychosocial clusters (e.g., illicit drug use) were less likely to transition to a less complex class. These people could benefit from targeted public health intervention and greater access to treatment resources.


Assuntos
Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Drogas Ilícitas , Minorias Sexuais e de Gênero , Transtornos Relacionados ao Uso de Substâncias , Masculino , Humanos , Adulto , Comportamento Sexual/psicologia , Síndrome da Imunodeficiência Adquirida/epidemiologia , Sindemia , Infecções por HIV/psicologia , Estudos de Coortes , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Homossexualidade Masculina/psicologia
6.
AIDS Res Ther ; 20(1): 29, 2023 05 13.
Artigo em Inglês | MEDLINE | ID: mdl-37179294

RESUMO

BACKGROUND: Polypharmacy, using five or more medications, may increase the risk of nonadherence to prescribed treatment. We aimed to identify the interrelationship between trajectories of adherence to antiretroviral therapy (ART) and polypharmacy. METHODS: We included women with HIV (aged ≥ 18) enrolled in the Women's Interagency HIV Study in the United States from 2014 to 2019. We used group-based trajectory modeling (GBTM) to identify trajectories of adherence to ART and polypharmacy and the dual GBTM to identify the interrelationship between adherence and polypharmacy. RESULTS: Overall, 1,538 were eligible (median age of 49 years). GBTM analysis revealed five latent trajectories of adherence with 42% of women grouped in the consistently moderate trajectory. GBTM identified four polypharmacy trajectories with 45% categorized in the consistently low group. CONCLUSIONS: The joint model did not reveal any interrelationship between ART adherence and polypharmacy trajectories. Future research should consider examining the interrelationship between both variables using objective measures of adherence.


Assuntos
Infecções por HIV , Humanos , Feminino , Estados Unidos/epidemiologia , Pessoa de Meia-Idade , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Polimedicação , Adesão à Medicação , Antirretrovirais/uso terapêutico
7.
Aging Ment Health ; 27(2): 434-444, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35138200

RESUMO

Objectives: Studies have shown that grit-defined as perseverance and passion for achieving one's long-term goals-is associated with improved health outcomes, including lower levels of psychological distress. However, the psychometric properties of the original Grit Scale (Grit-O Scale) has not been validated among sexual minority men (SMM). The present study aimed to validate the Grit-O Scale among a sample of older SMM and assess the relationships between the Grit-O Scale factors and symptoms of psychological distress.Method: We used data from a single visit of participants in the Multicenter AIDS Cohort Study (MACS) Healthy Aging longitudinal study. The sample included 981 older SMM (mean age = 61, SD = 8.5) with and without HIV. We conducted confirmatory factor analysis (CFA) to identify the two factors of the Grit-O Scale: consistency of interest and perseverance of effort. We also conducted a latent profile analysis (LPA) to identify distinct profiles of psychological distress from self-reported scales of depression, anxiety, and perceived stress.Results:The Grit-O Scale showed acceptable reliability estimates for the items with Cronbach's alpha reliability coefficients ranging from 0.77 to 0.82. The CFA identified the two factors of the Grit-O Scale with acceptable model fit (root mean square error of approximation = 0.058 [95% CI = 0.050, 0.067], comparative fit index = 0.95, Tucker-Lewis Index = 0.93, standardized root mean square residual = 0.07). The LPA yielded three mutually exclusive profiles of psychological distress (profile 1: low stress, anxiety, and depression; profile 2: high stress and depression and low anxiety; and profile 3: high stress, anxiety, and depression). In adjusted multinominal logistic regression analysis, we found that both higher levels of consistency of interest and perseverance of effort factors of the Grit-O Scale were significantly associated with decreased odds of being in profiles 2 and 3 compared with being in profile 1.Conclusion: Our findings support the use of the Grit-O Scale among older SMM. Grit factors could explain variability in the negative psychological symptoms among older SMM and warrant further investigation.Supplemental data for this article is available online at http://dx.doi.org/10.1080/13607863.2022.2032594.


Assuntos
Ansiedade , Minorias Sexuais e de Gênero , Masculino , Humanos , Reprodutibilidade dos Testes , Estudos de Coortes , Estudos Longitudinais
8.
Aging Ment Health ; 27(8): 1609-1618, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36415908

RESUMO

Objectives: Mental health concerns (e.g. depression, anxiety) that negatively impact gay, bisexual, and other men who have sex with men (GBMSM) persist over the life course and into old age, but less is known about potential contributors to GBMSM's mental health. Close relationships can be a source of risk or resilience from stress, exerting direct relationships on mental health, and may mediate well-established associations between minority stress and mental health. This study examined whether primary partner relationship support and strain were uniquely associated with, and mediated the association between internalized homophobia, and mental health among older GBMSM.Methods: GBMSM (N = 517, M age = 60) from the Multicenter AIDS Cohort Study, who were in primary relationships with men, provided self-report data at four timepoints. We used multilevel modeling to examine longitudinal associations among relationship support and strain and internalized homophobia with depression and anxiety.Results: Relationship strain, but not support, was positively associated with mental health concerns longitudinally. There was a significant, positive indirect effect of internalized homophobia on depression and anxiety through strain, but no support. Internalized homophobia was positively associated with relationship strain, which was positively associated with mental health symptoms longitudinally.Conclusions: Relationship strain was associated with depression and anxiety longitudinally among middle-aged and older GBMSM and mediated associations of internalized homophobia with mental health. The role of partner support warrants further investigation. Mental health interventions are critically needed for older GBMSM and, for partnered GBMSM, should include strategies for reducing relationship strain to foster well-being.

9.
Int J Audiol ; 62(5): 383-392, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35521916

RESUMO

OBJECTIVE: This study's objective was determining whether gap detection deficits are present in a longstanding cohort of people living with HIV (PLWH) compared to those living without HIV (PLWOH) using a new gap detection modelling technique (i.e. fitting gap responses using the Hill equation and analysing the individual gap detection resulting curves with non-linear statistics). This approach provides a measure of both gap threshold and the steepness of the gap length/correct detection relationship. DESIGN: The relationship between the correct identification rate at each gap length was modelled using the Hill equation. Results were analysed using a nonlinear mixed-effect regression model. STUDY SAMPLE: 45 PLWH (age range 41-78) and 39 PLWOH (age range 38-79) were enrolled and completed gap detection testing. RESULTS: The likelihood ratio statistic comparing the full regression model with the HIV effects to the null model, assuming one population curve for both groups, was highly significant (p < 0.001), suggesting a less precise relationship between gap length and correct detection in PLWH. CONCLUSIONS: PLWH showed degraded gap detection ability compared to PLWOH, likely due to central nervous system effects of HIV infection or treatment. The Hill equation provided a new approach for modelling gap detection ability.


Assuntos
Infecções por HIV , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Infecções por HIV/epidemiologia , Dinâmica não Linear , Inquéritos e Questionários
10.
Clin Infect Dis ; 75(12): 2119-2127, 2022 12 19.
Artigo em Inglês | MEDLINE | ID: mdl-35511608

RESUMO

BACKGROUND: Whether human immunodeficiency virus (HIV) infection is associated with the development of nonalcoholic steatohepatitis (NASH) remains unclear. The FibroScan-aspartate aminotransferase (FAST) score was developed to identify patients who have histologic NASH with high nonalcoholic fatty liver disease activity score (NAS ≥4) and significant liver fibrosis (≥F2), which has been associated with higher risk of end-stage liver disease. We examined whether HIV infection is associated with elevated FAST score in a large United States (US) cohort. METHODS: Vibration-controlled transient elastography was performed in 1309 women without history of chronic viral hepatitis enrolled from 10 US sites: 928 women with HIV (WWH) and 381 women without HIV (WWOH). We used multivariable logistic regression to evaluate associations of HIV, demographic, lifestyle, and metabolic factors with an elevated (>0.35) FAST score. RESULTS: Median age of WWH and WWOH was 51 years and 48 years, respectively. Most (90%) WWH were on antiretroviral therapy and 72% had undetectable HIV RNA. Prevalence of elevated FAST score was higher among WWH compared to WWOH (6.3% vs 1.8%, respectively; P = .001). On multivariable analysis, HIV infection was associated with 3.7-fold higher odds of elevated FAST score (P = .002), and greater waist circumference (per 10 cm) was associated with 1.7-fold higher odds (P < .001). In analysis limited to WWH, undetectable HIV RNA and current protease inhibitor use were independently associated with lower odds of elevated FAST score. CONCLUSIONS: Our findings suggest that HIV is an independent risk factor for NASH with significant activity and fibrosis. Studies validating FAST score in persons with HIV are warranted.


Assuntos
Técnicas de Imagem por Elasticidade , Infecções por HIV , Hepatopatia Gordurosa não Alcoólica , Feminino , Humanos , Pessoa de Meia-Idade , Aspartato Aminotransferases , HIV , Infecções por HIV/complicações , Fígado/patologia , Cirrose Hepática/complicações , RNA
11.
Am J Epidemiol ; 191(2): 287-297, 2022 01 24.
Artigo em Inglês | MEDLINE | ID: mdl-34718381

RESUMO

We aimed to describe transitions between preexposure prophylaxis (PrEP) eligibility and human immunodeficiency virus (HIV) infection among HIV-negative men who have sex with men (MSM). We used data from 1,885 MSM, who had not used PrEP, enrolled in the Lisbon Cohort of MSM, with at least 2 consecutive measurements of PrEP eligibility from 2014-2020. A time-homogeneous Markov multistate model was applied to describe the transitions between states of PrEP eligibility-eligible and ineligible-and from these to HIV infection (HIV). The intensities of the transitions were closer for ineligible-to-eligible and eligible-to-ineligible transitions (intensity ratio, 1.107, 95% confidence interval (CI): 1.080, 1.176), while the intensity of the eligible-to-HIV transition was higher than that for ineligible-to-HIV transition (intensity ratio, 9.558, 95% CI: 0.738, 65.048). The probabilities of transitions increased with time; for 90 days, the probabilities were similar for the ineligible-to-eligible and eligible-to-ineligible transitions (0.285 (95% CI: 0.252, 0.319) vs. 0.258 (95% CI: 0.228, 0.287)), while the eligible-to-HIV transition was more likely than ineligible-to-HIV (0.004 (95% CI: 0.003, 0.007) vs. 0.001 (95% CI: 0.001, 0.008)) but tended to become closer with time. Being classified as ineligible was a short-term indicator of a lower probability of acquiring HIV. Once an individual moved to eligible, he was at a higher risk of seroconversion, demanding a timely delivery ofPrEP.


Assuntos
Definição da Elegibilidade/estatística & dados numéricos , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Profilaxia Pré-Exposição/estatística & dados numéricos , Minorias Sexuais e de Gênero/estatística & dados numéricos , Adulto , Soronegatividade para HIV , Humanos , Masculino , Cadeias de Markov , Portugal/epidemiologia
12.
Am J Public Health ; 112(S4): S452-S462, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35763737

RESUMO

Objectives. To determine whether intersectional stigma is longitudinally associated with biopsychosocial outcomes. Methods. We measured experienced intersectional stigma (EIS; ≥ 2 identity-related attributions) among sexual minority men (SMM) in the United States participating in the Multicenter AIDS Cohort Study. We assessed longitudinal associations between EIS (2008‒2009) and concurrent and future hypertension, diabetes, dyslipidemia, antiretroviral therapy adherence, HIV viremia, health care underutilization, and depression symptoms (2008‒2019). We conducted causal mediation to assess the contribution of intersectional stigma to the relationship between self-identified Black race and persistently uncontrolled outcomes. Results. The mean age (n = 1806) was 51.8 years (range = 22-84 years). Of participants, 23.1% self-identified as Black; 48.3% were living with HIV. Participants reporting EIS (30.8%) had higher odds of hypertension, dyslipidemia, diabetes, depression symptoms, health care underutilization, and suboptimal antiretroviral therapy adherence compared with participants who did not report EIS. EIS mediated the relationship between self-identified Black race and uncontrolled outcomes. Conclusions. Our findings demonstrate that EIS is a durable driver of biopsychosocial health outcomes over the life course. Public Health Implications. There is a critical need for interventions to reduce intersectional stigma, help SMM cope with intersectional stigma, and enact policies protecting minoritized people from discriminatory acts. (Am J Public Health. 2022;112(S4):S452-S462. https://doi.org/10.2105/AJPH.2022.306735).


Assuntos
Infecções por HIV , Hipertensão , Minorias Sexuais e de Gênero , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Antirretrovirais/uso terapêutico , Estudos de Coortes , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Humanos , Hipertensão/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estados Unidos/epidemiologia , Adulto Jovem
13.
BMC Cardiovasc Disord ; 22(1): 393, 2022 09 03.
Artigo em Inglês | MEDLINE | ID: mdl-36057773

RESUMO

BACKGROUND: Infection with human immunodeficiency virus (HIV) is associated with higher risk for myocardial disease despite modern combination antiretroviral therapy (cART). Factors contributing to this excess risk, however, remain poorly characterized. We aimed to assess cross-sectional relationships between elevations of left atrial volume index (LAVI) and myocardial extracellular volume (ECV) fraction that have been reported in persons living with HIV and levels of circulating biomarkers of inflammation, fibrosis, and myocyte stretch among persons living with and without HIV (PLWH, PLWOH). METHODS: Participants from three cohorts of PLWH and PLWOH underwent cardiovascular magnetic resonance imaging for measurement of LAVI and ECV. Levels of circulating proteins (IL-6, sCD14, galectin-3, NT-proBNP, GDF-15, TIMP-2, MMP-2, and hsTnI) were measured using immunoassays. Associations were assessed using logistic and linear regression, adjusting for demographics, substance use, and clinical characteristics. RESULTS: Among 381 participants with and without HIV, median age (IQR) was 55.1 (51.2, 58.4) years, 28% were female, 69% were Black, and 46% were current smokers. Sixty-two percent were PLWH (n = 235), of whom 88% were receiving cART and 72% were virally suppressed. PLWH had higher levels of sCD14 (p = < 0.001), GDF-15 (p = < 0.001), and NT-proBNP (p = 0.03) compared to PLWOH, while levels of other biomarkers did not differ by HIV serostatus, including IL-6 (p = 0.84). Among PLWH, higher sCD14, GDF-15, and NT-proBNP were also associated with lower CD4 + cell count, and higher NT-proBNP was associated with detectable HIV viral load. NT-proBNP was associated with elevated LAVI (OR: 1.79 [95% CI: 1.31, 2.44]; p < 0.001) with no evidence of effect measure modification by HIV serostatus. Other associations between HIV-associated biomarkers and LAVI or ECV were small or imprecise. CONCLUSIONS: Our findings suggest that elevated levels of sCD14, GDF-15, and NT-proBNP among PLWH compared to PLWOH observed in the current cART era may only minimally reflect HIV-associated elevations in LAVI and ECV. Future studies of excess risk of myocardial disease among contemporary cohorts of PLWH should investigate mechanisms other than those connoted by the studied biomarkers.


Assuntos
Cardiomiopatias , Infecções por HIV , Biomarcadores , Feminino , Fator 15 de Diferenciação de Crescimento , Infecções por HIV/complicações , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Átrios do Coração/diagnóstico por imagem , Humanos , Interleucina-6 , Receptores de Lipopolissacarídeos , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico , Fragmentos de Peptídeos
14.
BMC Womens Health ; 22(1): 291, 2022 07 14.
Artigo em Inglês | MEDLINE | ID: mdl-35836248

RESUMO

BACKGROUND: Anal intercourse (AI) is not uncommon among U.S. women and, when condomless, confers a far greater likelihood of HIV transmission than condomless vaginal intercourse. We aim to identify determinants preceding AI, among women with, and women without HIV. METHODS: 3708 women living with (73%), and without HIV (27%) participating in the Women's Interagency HIV Study provided sexual behavior and other data at 6-monthly visits over a median of 9 years (1994-2014). We used generalized estimating equation models to examine sociodemographic, structural and behavioral determinants reported in the visit preceding (1) AI, and (2) condomless AI. RESULTS: AI was reported at least once over follow-up by 31% of women without, and 21% with HIV. AI was commonly condomless; reported at 76% and 51% of visits among women living without HIV, and with HIV, respectively. Women reporting AI were more likely to be younger (continuous variable, adjusted odds ratio (aOR) = 0.97, 95% confidence interval (CI):0.96-0.98), Hispanic (aOR = 1.88, CI:1.47-2.41) or White (aOR = 1.62, CI:1.15-2.30) compared to Black, and have at least high school education (aOR = 1.33, CI:1.08-1.65). AI was more likely following the reporting of either (aOR = 1.35, CI:1.10-1.62), or both (aOR = 1.77, CI:1.13-2.82) physical and sexual violence, excessive drinking (aOR = 1.27, CI:1.05-1.66) or any drug use (aOR = 1.34, CI:1.09-1.66), multiple male partners (aOR = 2.64, CI:2.23-3.11), exchange sex (aOR = 3.45, CI:2.53-4.71), one or more female sex partners (aOR = 1.32, CI:1.01-1.75), condomless vaginal intercourse (aOR = 1.80, CI:1.53-2.09), and high depressive symptoms (aOR = 1.23, CI:1.08-1.39). CONCLUSION: AI disproportionally follows periods of violence victimization, substance use, multiple sex partners and depression. Better prevention messaging and biomedical interventions that reduce acquisition or transmission risk are needed, but when AI occurs in the context of violence against women, as our findings indicate, focusing on gender-based violence reduction and immediate treatment to reduce HIV transmission risk is important.


Assuntos
Infecções por HIV , Transtornos Relacionados ao Uso de Substâncias , Feminino , Infecções por HIV/prevenção & controle , Humanos , Masculino , Comportamento Sexual , Parceiros Sexuais , Estados Unidos/epidemiologia , Violência
15.
J Infect Dis ; 223(12): 2136-2144, 2021 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-33141170

RESUMO

BACKGROUND: People with HIV are disproportionately coinfected with hepatitis C virus (HCV) and experience accelerated liver-related mortality. Direct-acting antivirals (DAAs) yield high sustained virologic response (SVR) rates, but uptake is suboptimal. This study characterizes the DAA-era HCV treatment cascade and barriers among US men and women with or at risk for HIV. METHODS: We constructed HCV treatment cascades using the Women's Interagency HIV Study (women, 6 visits, 2015-2018, n = 2447) and Multicenter AIDS Cohort Study (men, 1 visit, 2015-2018, n = 2221). Cascades included treatment-eligible individuals (ie, HCV RNA-positive or reported DAAs). Surveys captured self-reported clinical (eg, CD4), patient (eg, missed visits), system (eg, appointment access), and financial/insurance barriers. RESULTS: Of 323/92 (women/men) treatment eligible, most had HIV (77%/70%); 69%/63% were black. HIV-positive women were more likely to attain cascade outcomes than HIV-negative women (39% vs 23% initiated, 21% vs 12% SVR); similar discrepancies were noted for men. Black men and substance users were treated less often. Women initiating treatment (vs not) reported fewer patient barriers (14%/33%). Among men not treated, clinical barriers were prevalent (53%). CONCLUSIONS: HIV care may facilitate HCV treatment linkage and barrier navigation. HIV-negative individuals, black men, and substance users may need additional support. CLINICAL TRIALS REGISTRATION: NCT00000797 (Women's Interagency HIV Study); NCT00046280 (Multicenter AIDS Cohort Study).


Assuntos
Síndrome da Imunodeficiência Adquirida , Antivirais , Coinfecção , Infecções por HIV , Hepatite C Crônica , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Antivirais/uso terapêutico , Estudos de Coortes , Coinfecção/tratamento farmacológico , Feminino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Disparidades em Assistência à Saúde , Hepacivirus , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Humanos , Masculino , Resposta Viral Sustentada , Estados Unidos/epidemiologia
16.
Cytokine ; 144: 155573, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33994069

RESUMO

The prevalence of non-alcoholic fatty liver disease (NAFLD) is higher in HIV-infected patients compared to the general population. While metabolic risk factors such as obesity, insulin resistance and the metabolic syndrome have been identified as key risk factors in all individuals, there is limited information regarding the mechanisms that contribute to the higher prevalence among individuals living with HIV, particularly among women and ethnic minorities. The aim of this study was to determine the association, over two time points, of a panel of biomarkers with liver steatosis in a cohort of HIV-seropositive women and age-matched negative controls and to investigate whether the association differed by HIV status. To this effect, plasma samples obtained from 105 HIV-positive and -negative participants enrolled in the Women's Interagency HIV study (WIHS) Washington DC site were assayed for biomarkers associated with inflammation, adipose tissue function, fibrinolysis, gut permeability and hepatocyte apoptosis/necrosis. Their association with liver steatosis, measured using Controlled-Attenuation Parameter (CAP) scores determined by transient elastography, were then analyzed. HIV positivity was associated with lower median IL-17A and higher IL-22 and sCD14 values. There were no statistically significant associations between HIV status, biomarkers or covariates with CAP measurement over two time points. However, IL-1ß levels were associated with higher CAP scores at the second visit. Across all statistical models, an increase in BMI was associated with an increase in CAP measurements. No statistically significant associations were found between viral load history, CD4 + T-cell count, biomarkers and covariates, including ART use, on CAP measurements. These results confirm that BMI is a key risk factor for liver steatosis independent of HIV status. The potential contributions to NAFLD of differences in IL-1ß, Th17-family cytokines and gut permeability between HIV-positive vs. negative individuals require further study.


Assuntos
Biomarcadores/metabolismo , Fígado Gorduroso/metabolismo , Infecções por HIV/metabolismo , Fígado/metabolismo , Adulto , Apoptose/fisiologia , Índice de Massa Corporal , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
17.
AIDS Behav ; 25(6): 1975-1983, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33387137

RESUMO

We aimed to study the uptake of preexposure prophylaxis (PrEP) before and after its implementation in the Portuguese National Health Service (PNHS) among men who have sex with men (MSM). We studied 6164 participants in the Lisbon Cohort of MSM who participated between March 2014 and July 2019. 198 participants (3.2%) reported having recently used PrEP. Approximately one-third started PrEP after its implementation. PrEP uptake increased from 0.15% in 2014 to 5.36% in 2019. In their first use, 86 participants (70.5%) used it daily. How PrEP was obtained varied according to the timing of the first use: prescribed by a physician in Portugal (11.1% before vs 68.8% after implementation) and online (40.7% before vs 14.1% after). We observed an increase in the uptake and in the prescription by a physician, particularly after its implementation in the PNHS representing a change to a more equitable and safer way of using PrEP.


RESUMEN: Nuestro objetivo fue estudiar el uso de profilaxis pre exposición (PrEP) en hombres que tienen sexo con hombres (HSH), antes y después de su implementación en el Servicio Nacional de Salud de Portugal (PNHS). Estudiamos 6164 participantes de la Cohorte de HSH de Lisboa evaluados entre marzo de 2014 y julio de 2019. De los participantes, 198 (3,2%) indicaron haber utilizado PrEP recientemente. Aproximadamente un tercio comenzó con PrEP después de su implementación en el PNHS. El uso de PrEP aumentó del 0,15% en 2014 al 5,36% en 2019. En su primer uso, 86 participantes (70,5%) la usaron a diario. La forma en que se obtuvo la PrEP varió según el momento del primer uso: prescrito por un médico en Portugal (11,1% antes vs. 68,8% después de la implementación) y online (40,7% antes vs. 14,1% después). Observamos un aumento en el uso y en prescripción médica, particularmente después de su implementación en el PNHS, lo que representa un cambio hacia una forma más equitativa y segura de usar la PrEP.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Humanos , Masculino , Portugal , Medicina Estatal
18.
Soc Psychiatry Psychiatr Epidemiol ; 56(2): 259-272, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32780176

RESUMO

PURPOSE: Racial/ethnic minorities experience disproportionate rates of depressive symptoms in the United States. The magnitude that underlying factors-such as social inequalities-contribute to these symptoms is unknown. We sought to identify exposures that explain racial/ethnic differences in clinically significant depressive symptomology among men who have sex with men (MSM). METHODS: Data from the Multicenter AIDS Cohort Study (MACS), a prospective cohort study, were used to examine clinically significant symptoms of depression (Center for Epidemiologic Studies Depression Scale score ≥ 20) among non-Latinx White, non-Latinx Black, and Latinx MSM. We included 44,823 person-visits by 1729 MSM seen in the study sites of Baltimore/Washington, DC; Chicago; Pittsburgh/Columbus; and Los Angeles from 2000 to 2017. Regression models estimated the percentage of depressive symptom risk explained by social, treatment, and health-related variables related to race/ethnicity. Machine-learning methods were used to predict the impact of mitigating differences in determinants of depressive symptoms by race/ethnicity. RESULTS: At the most recent non-missing MACS visit, 16% of non-Latinx White MSM reported clinically significant depressive symptoms, compared to 22% of non-Latinx Black and 25% of Latinx men. We found that income and social-environmental stress were the largest contributors to racial/ethnic disparities in risk for depressive symptoms. Similarly, setting the prevalence of these two exposures to be equal across racial/ethnic groups was estimated to be most effective at reducing levels of clinically significant depressive symptoms. CONCLUSION: Results suggested that reducing socioeconomic inequalities and stressful experiences may be effective public health targets to decrease racial/ethnic disparities in depressive symptoms among MSM.


Assuntos
Etnicidade , Minorias Sexuais e de Gênero , Baltimore/epidemiologia , Estudos de Coortes , Hispânico ou Latino , Homossexualidade Masculina , Humanos , Los Angeles/epidemiologia , Masculino , Estudos Prospectivos , Fatores Socioeconômicos , Estados Unidos
19.
J Sex Med ; 17(9): 1629-1642, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32703707

RESUMO

INTRODUCTION: Condomless anal intercourse (AI) confers a far greater likelihood of HIV transmission than condomless vaginal intercourse (VI). However, little is known about AI practice over the life course of women, to what extent AI practice is condom-protected, and whether it is associated with other HIV risk behaviors. We aim to describe longitudinal AI practice among HIV-seronegative women and to identify subgroups with distinct trajectories of AI practice. METHODS: Using data from the Women's Interagency HIV Study, an observational cohort of US women with or at risk for HIV, we described AI practice among HIV-seronegative participants. Group-based trajectory modeling was used to identify distinct AI trajectories. We used multinomial regression to examine associations between baseline characteristics and trajectory group membership. RESULTS: A third of the 1,085 women in our sample reported any AI over follow-up (median follow-up = 14 years). AI decreased more sharply with age compared to VI. Consistent condom use during AI was low: twice the proportion of women never reported using condoms consistently during AI compared to during VI. 5 trajectory groups were identified: AI & VI persistors (N = 75) practiced AI and VI consistently over follow-up (AI & VI desistors (N = 169) tended to practice AI and VI when young only, while VI persistors (N = 549), VI desistors (N = 167), and AI & VI inactives (N = 125) reported varying levels of VI practice, but little AI. AI & VI persistors reported multiple male partners and exchange sex at more visits than other groups. Women who identified as bisexual/lesbian (vs heterosexual), who had ever experienced physical and sexual violence (vs never), and/or who reported above the median number of lifetime male sex partners (vs median or below) had approximately twice the odds of being AI & VI persistors than being VI persistors. CONCLUSIONS: We identified a small subgroup of women who practice AI and report inconsistent condom use along with other risk behaviors throughout the life course; they may therefore particularly benefit from ongoing access to HIV prevention services including pre-exposure prophylaxis. Owen BN, Baggaley RF, Maheu-Giroux M, et al. Patterns and Trajectories of Anal Intercourse Practice Over the Life Course Among US Women at Risk of HIV. J Sex Med 2020;17:1629-1642.


Assuntos
Infecções por HIV , Comportamento Sexual , Preservativos , Feminino , Infecções por HIV/transmissão , Heterossexualidade , Humanos , Masculino , Parceiros Sexuais
20.
AIDS Behav ; 24(12): 3482-3490, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32418165

RESUMO

Pain is common in women with HIV, though little research has focused on psychosocial experiences contributing to pain in this population. In the present study we examined whether internalized HIV stigma predicts pain, and whether depressive symptoms mediate this relationship among women with HIV. Data were drawn from the Women's Interagency HIV Study (WIHS), for 1,364 women with HIV who completed three study visits between 2015 and 2016. We used a sequential longitudinal design to assess the relationship between internalized HIV stigma at time 1 on pain at time 3 through depressive symptoms at time 2. Analyses revealed internalized HIV stigma was prospectively associated with greater pain, B = 5.30, 95% CI [2.84, 7.60]. The indirect effect through depressive symptoms supported mediation, B = 3.68, 95% CI [2.69, 4.79]. Depression is a modifiable risk factor that can be addressed to improve pain prevention and intervention for women with HIV.


Assuntos
Depressão , Infecções por HIV , Estigma Social , Adulto , Idoso , Depressão/epidemiologia , Feminino , Infecções por HIV/complicações , Humanos , Pessoa de Meia-Idade , Dor , Fatores de Risco , Estados Unidos/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA