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1.
J Infect Dis ; 228(6): 662-673, 2023 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-37486337

RESUMO

BACKGROUND: Men who have sex with men who ever injected drugs (ever MSM-IDU) carry a high hepatitis C virus (HCV) burden. We estimated whether current HCV testing and treatment in San Francisco can achieve the 2030 World Health Organization (WHO) HCV elimination target on HCV incidence among ever MSM-IDU. METHODS: A dynamic HCV/HIV transmission model among MSM was calibrated to San Francisco data, including HCV antibody (15.5%, 2011) and HIV prevalence (32.8%, 2017) among ever MSM-IDU. MSM had high HCV testing (79%-86% ever tested, 2011-2019) and diagnosed MSM had high HCV treatment (65% ever treated, 2018). Following coronavirus disease 2019 (COVID-19)-related lockdowns, HCV testing and treatment decreased by 59%. RESULTS: Among all MSM, 43% of incident HCV infections in 2022 were IDU-related. Among ever MSM-IDU in 2015, HCV incidence was 1.2/100 person-years (95% credibility interval [CrI], 0.8-1.6). Assuming COVID-19-related declines in HCV testing/treatment persist until 2030, HCV incidence among ever MSM-IDU will decrease by 84.9% (95% CrI, 72.3%-90.8%) over 2015-2030. This decline is largely attributed to HCV testing and treatment (75.8%; 95% CrI, 66.7%-89.5%). Slightly greater decreases in HCV incidence (94%-95%) are projected if COVID-19 disruptions recover by 2025 or 2022. CONCLUSIONS: We estimate that HCV incidence will decline by >80% over 2015-2030 among ever MSM-IDU in San Francisco, achieving the WHO target.


Assuntos
COVID-19 , Infecções por HIV , Hepatite C , Minorias Sexuais e de Gênero , Abuso de Substâncias por Via Intravenosa , Masculino , Humanos , Hepacivirus , Homossexualidade Masculina , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , São Francisco/epidemiologia , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Hepatite C/diagnóstico , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/epidemiologia , Organização Mundial da Saúde , Prevalência
2.
Acad Psychiatry ; 2023 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-37821717

RESUMO

OBJECTIVE: This article aims to determine the prevalence of caregiving among faculty at a large academic health sciences institution, to examine the effect of gender and other demographic and professional covariates on caregiving status, and to explore caregiver-generated policy recommendations. METHOD: A cross-sectional, mixed-methods survey was collected from June through August 2018. Participants were faculty within one of the institution's health professional schools (dentistry, medicine, nursing, or pharmacy) receiving at least 50% salary from the institution. In addition to demographic information, we collected academic series and rank, and assessed association between covariates on caregiving status using logistic regression. We analyzed open-ended responses using thematic analysis to identify themes in caregiver barriers and policy suggestions. RESULTS: Among 657 eligible respondents, 11.4% were informal caregivers. Women were more likely to be caregivers than men (aOR 2.53, 95% CI: 1.40, 4.78), as were older faculty. Caregivers identified unsupportive climate or unrealistic work expectations, concern about career advancement, insufficient information about policies, and concern about colleague burden as barriers to support. Suggestions for workplace support included improved leave policies, increased flexibility, caregiver resource support, improved clarity and dissemination of policy information, and financial support. CONCLUSIONS: Women faculty are more likely to be informal caregivers, exacerbating disparities within academic medicine for promotion and retention among women faculty. Institutions might include caregiving status in annual burnout surveys to guide the development of structural support and policies for extension of family leave beyond childbearing (or catastrophic leave), flexibility in work hours, and subsidized eldercare services.

3.
Clin Infect Dis ; 74(6): 993-1003, 2022 03 23.
Artigo em Inglês | MEDLINE | ID: mdl-34448809

RESUMO

BACKGROUND: The current opioid epidemic across the United States has fueled a surge in the rate of new hepatitis C virus (HCV) infections among young persons who inject drugs (PWIDs). Paramount to interrupting transmission is targeting these high-risk populations and understanding the underlying network structures facilitating transmission within these communities. METHODS: Deep sequencing data were obtained for 52 participants from 32 injecting partnerships enrolled in the U-Find-Out (UFO) Partner Study, which is a prospective study of self-described injecting dyad partnerships from a large community-based study of HCV infection in young adult PWIDs from San Francisco. Phylogenetically linked transmission events were identified using traditional genetic-distance measures and viral deep sequence phylogenies reconstructed to determine the statistical support of inferences and the direction of transmission within partnerships. RESULTS: Using deep sequencing data, we found that 12 of 32 partnerships were genetically similar and clustered. Three additional phylogenetic clusters were found describing novel putative transmission links outside of the injecting relationship. Transmission direction was inferred correctly for 5 partnerships with the incorrect transmission direction inferred in more than 50% of cases. Notably, we observed that phylogenetic linkage was most often associated with a lower number of network partners and involvement in a sexual relationship. CONCLUSIONS: Deep sequencing of HCV among self-described injecting partnerships demonstrates that the majority of transmission events originate from outside of the injecting partnership. Furthermore, these findings caution that phylogenetic methods may be unable to routinely infer the direction of transmission among PWIDs especially when transmission events occur in rapid succession within high-risk networks.


Assuntos
Usuários de Drogas , Infecções por HIV , Hepatite C , Abuso de Substâncias por Via Intravenosa , Infecções por HIV/epidemiologia , Hepacivirus/genética , Hepatite C/complicações , Humanos , Uso Comum de Agulhas e Seringas , Filogenia , Estudos Prospectivos , Parceiros Sexuais , Abuso de Substâncias por Via Intravenosa/epidemiologia , Adulto Jovem
4.
Clin Infect Dis ; 73(6): e1290-e1295, 2021 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-33768236

RESUMO

BACKGROUND: To achieve elimination of hepatitis C virus (HCV) infection, limited resources can be best allocated through estimation of "care cascades" among groups disproportionately affected. In San Francisco and elsewhere, these groups include young (age ≤ 30 years) people who inject drugs (YPWID), men who have sex with men who inject drugs (MSM-IDU), and low-income trans women. METHODS: We developed cross-sectional HCV care cascades for YPWID, MSM-IDU, and trans women using diverse data sources. Population sizes were estimated using an inverse variance-weighted average of estimates from the peer-reviewed literature between 2013 and 2019. Proportions of past/current HCV infection, diagnosed infection, treatment initiation, and evidence of cure (sustained virologic response at 12 weeks posttreatment) were estimated from the literature using data from 7 programs and studies in San Francisco between 2015 and 2020. RESULTS: The estimated number of YPWID in San Francisco was 3748; 58.4% had past/current HCV infection, of whom 66.4% were diagnosed with current infection, 9.1% had initiated treatment, and 50% had confirmed cure. The corresponding figures for the 8135 estimated MSM-IDU were: 29.4% with past/current HCV infection, 70.3% diagnosed with current infection, 28.4% initiated treatment, and 38.9% with confirmed cure. For the estimated 951 low-income trans women, 24.8% had past/current HCV infection, 68.9% were diagnosed with current infection, 56.5% initiated treatment, and 75.5% had confirmed cure. CONCLUSIONS: In all 3 populations, diagnosis rates were relatively high; however, attention is needed to urgently increase treatment initiation in all groups, with a particular unmet need among YPWID.


Assuntos
Infecções por HIV , Hepatite C , Preparações Farmacêuticas , Minorias Sexuais e de Gênero , Abuso de Substâncias por Via Intravenosa , Adolescente , Adulto , Estudos Transversais , Feminino , Hepacivirus , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Homossexualidade Masculina , Humanos , Masculino , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/epidemiologia
5.
Am J Epidemiol ; 190(9): 1744-1750, 2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-33738464

RESUMO

Whether requiring Graduate Record Examinations (GRE) results for doctoral applicants affects the diversity of admitted cohorts remains uncertain. This study randomized applications to 2 population-health doctoral programs at the University of California San Francisco to assess whether masking reviewers to applicant GRE results differentially affects reviewers' scores for underrepresented minority (URM) applicants from 2018-2020. Applications with GRE results and those without were randomly assigned to reviewers to designate scores for each copy (1-10, 1 being best). URM was defined as self-identification as African American/Black, Filipino, Hmong, Vietnamese, Hispanic/Latinx, Native American/Alaska Native, or Native Hawaiian/Other Pacific Islander. We used linear mixed models with random effects for the applicant and fixed effects for each reviewer to evaluate the effect of masking the GRE results on the overall application score and whether this effect differed by URM status. Reviewer scores did not significantly differ for unmasked versus masked applications among non-URM applicants (ß = 0.15; 95% CI: -0.03, 0.33) or URM applicants (ß = 0.02, 95% CI: -0.49, 0.54). We did not find evidence that removing GREs differentially affected URM compared with non-URM students (ß for interaction = -0.13, 95% CI: -0.55, 0.29). Within these doctoral programs, results indicate that GRE scores neither harm nor help URM applicants.


Assuntos
Teste de Admissão Acadêmica , Educação de Pós-Graduação , Grupos Minoritários , Critérios de Admissão Escolar , Sucesso Acadêmico , Adulto , Educação de Pós-Graduação/normas , Educação de Pós-Graduação/estatística & dados numéricos , Humanos , Masculino , Grupos Minoritários/estatística & dados numéricos , Grupos Raciais/estatística & dados numéricos , Racismo , São Francisco , Critérios de Admissão Escolar/estatística & dados numéricos
6.
Subst Abus ; 42(4): 821-831, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33492198

RESUMO

Background: The synergistic epidemics of substance use, violence, and HIV/AIDS, also known as the SAVA syndemic, disproportionately affects vulnerable women in the United States. Methamphetamine use is closely linked with physical and sexual violence, including intimate partner violence (IPV), which heightens women's vulnerability to HIV. This mixed methods study examined the prevalence and correlates of violence among women who use methamphetamine, (n = 209) enrolled in an HIV intervention study in San Diego, California. Methods: At baseline, 209 women completed an interviewer-administered computer-assisted survey. A sub set of women who reported lifetime IPV (n = 18) also participated in qualitative interviews to contextualize our understanding of patterns of violence over time. Results: In the overall cohort, reports of lifetime (66.0%) and past 2-month (19.6%) IPV were prevalent. Moreover, women reported lifetime physical only (27.3%), sexual only (6.2%), or both forms of violence (50.7%) by multiple perpetrators. Factors independently associated with lifetime IPV were having unprotected sex with a steady partner (odds ratio [OR]: 2.50, 95% confidence interval [CI]: 1.04, 6.00) and being high on methamphetamine during unprotected sex with a steady partner (OR: 2.56, 95% CI: 1.30, 5.09) within the past 2 months. Our qualitative narratives illuminated how IPV in women's steady relationships often reflects a culmination of violent victimization throughout their lifetime which is further exacerbated by methamphetamine use and sexual risk through gendered power dynamics. Conclusions: HIV prevention interventions should address the SAVA syndemic in a holistic manner, including the role of methamphetamine use in the context of women's abusive steady relationships.


Assuntos
Infecções por HIV , Metanfetamina , Parceiros Sexuais , Transtornos Relacionados ao Uso de Substâncias , Violência , Feminino , Infecções por HIV/epidemiologia , Humanos , Prevalência , Fatores de Risco , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Sindemia , Estados Unidos
7.
Am J Epidemiol ; 189(10): 1049-1052, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32602528

RESUMO

"The mission of the Diversity and Inclusion Committee (D&I) in the Society for Epidemiologic Research is to foster the diversity of our membership and work towards the engagement of all members, from diverse backgrounds at all stages of their careers, in the Society's activities, with the intent of enhancing discovery in public health." As a foundational step in implementing our mission, the D&I Committee conducted a survey of SER membership. Here we report on the efforts we have undertaken to expand the diversity and inclusiveness of our Society and our aspirations for future efforts in support of D&I. Early on, we established the SERvisits program to conduct outreach to institutions and students that have historically been underrepresented at SER; we hope this program continues to grow in its reach and impact. We have also taken steps to increase the inclusiveness of SER activities, for example, by engaging members on issues of D&I through symposia and workshops at SER annual meetings and through social media. DeVilbiss et al. (Am J Epidemiol. 2020;189(10):998-1010) have demonstrated that there is substantial room for improvement with regards to diversity and inclusion within SER. We invite SER members to become involved and collaborate on this long-term goal.


Assuntos
Diversidade Cultural , Epidemiologia/organização & administração , Sociedades Médicas , Humanos
8.
Am J Epidemiol ; 2020 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-31907518

RESUMO

Using web-based survey data collected June - August 2018 from the Society for Epidemiologic Research (SER) members, we characterized numerous dimensions of social identity and lived experience, and assessed relationships between these characteristics and perceptions of inclusion and society participation. We quantified associations between characteristics, feeling very welcomed, high (top 25th percentile) self-initiated participation, and any (top 10th percentile) society-initiated participation. Racial/ethnic and religious minority categories were blinded to preserve anonymity and we accounted for missing data. Most 2018 SER members (n = 1631) were white (62%) or female (66%). Females with racial/ethnic non-response were least likely, while white males were most likely to report feeling very welcomed. Members who did not report race, identified with a specific racial/ethnic minority, or were politically conservative/right-leaning were less likely than white or liberal/left-leaning members to have high self-initiated participation. Women and individuals of a specific racial/ethnic minority or minority religious affiliations were less likely to participate in events initiated by the society. These data represent a baseline for assessing trends and the impact of future initiatives aimed at improving diversity, inclusion, representation and participation within SER.

9.
J Urban Health ; 97(6): 831-844, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32901411

RESUMO

Housing status affects drug using behaviors, but less is known about the relationship between housing patterns and hepatitis C virus (HCV) infection. HCV-negative young people who inject drugs (PWID) were enrolled into a prospective cohort (2003-2019) with quarterly study visits. We used Cox regression to estimate the independent association of recent housing status (housed vs. unhoused, housing stability, and housing trajectory) on HCV incidence. Among 712 participants, 245 incident HCV infections occurred over 963.8 person-years (py) (cumulative incidence 24.4/100 py). An inverse relationship between time housed and HCV incidence was observed (always unhoused 45.0/100 py, 95% confidence interval (CI) 37.1, 54.5; variably housed 18.0/100 py, 95% CI 15.0, 21.3; and always housed 7.0/100 py, 95% CI 3.0, 17.3). In Cox regression models controlling for confounders, those unhoused versus housed at baseline had a 1.9-fold increased infection risk (95% CI 1.4, 2.6). Those always unhoused versus always housed had a 1.5 times greater risk of HCV (95% CI 1.0, 2.3), and those spending a portion of time in stable housing a lower risk (adjusted relative hazard 0.05, 95% CI 0.3, 0.9) with a similar trend for those being housed for less time. Young adult PWID experiencing both recent and chronic states of being unhoused are at elevated risk for HCV infection. Importantly for this group of PWID, our findings indicate that some frequency of residential housing significantly reduces HCV infection risk.


Assuntos
Hepatite C , Habitação , Abuso de Substâncias por Via Intravenosa , Feminino , Hepatite C/epidemiologia , Habitação/estatística & dados numéricos , Humanos , Incidência , Masculino , Estudos Prospectivos , Medição de Risco , Abuso de Substâncias por Via Intravenosa/epidemiologia , Adulto Jovem
10.
AIDS Behav ; 23(6): 1594-1603, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30460664

RESUMO

We used two national surveys (2010: N = 1597; 2013: N = 1057) of people who inject drugs (PWID) in past-month to assess the prevalence and population size of PWID with either safe or unsafe injection and sex behaviors, overall and by HIV status. In 2013, only 27.0% (vs. 32.3% in 2010) had safe injection and sex, 24.6% (vs. 23.3% in 2010) had unsafe injection and sex, 26.4% (vs. 26.5% in 2010) had only unsafe injection, and 22.0% (vs. 18.0% in 2010) had unsafe sex only. Among HIV-positive PWID in 2013, only 22.1% (~ 2200 persons) had safe injection and sex, 14.2% (~ 1400 persons) had unsafe injection and sex, 53.1% (~ 5200 persons) had unsafe injection, and 10.6% had unsafe sex (~ 1100 persons). Among HIV-negative PWID in 2013, only 27.5% (~ 22,200 persons) had safe injection and sex, 25.9% (~ 20,900 PWID) had unsafe injection and sex, 23.2% (~ 18,700 persons) had unsafe injection, and 23.3% (~ 18,800 persons) had unsafe sex. HIV-positive and -negative PWID in Iran continue to be at risk of HIV acquisition or transmission which calls for targeted preventions services.


Assuntos
Infecções por HIV/transmissão , Abuso de Substâncias por Via Intravenosa/epidemiologia , Sexo sem Proteção/estatística & dados numéricos , Adulto , Feminino , Inquéritos Epidemiológicos , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Vigilância da População , Prevalência , Adulto Jovem
11.
Clin Infect Dis ; 66(1): 20-28, 2018 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-29020200

RESUMO

Background: The objective of this study was to assess differences in hepatitis C virus (HCV) incidence by sex in people who inject drugs (PWID), using a large international multicohort set of pooled biological and behavioral data from prospective observational studies of incident human immunodeficiency virus (HIV) and HCV infections in high-risk cohorts (the InC3 Collaborative). Methods: HCV infection date was estimated based on a hierarchy of successive serological (anti-HCV), virological (HCV RNA), and clinical (symptoms and/or liver function tests) data. We used a Cox proportional hazards model to calculate the crude and adjusted female to male (F:M) hazard ratio (HR) for HCV incidence using biological sex as the main exposure. Results: A total of 1868 PWID were observed over 3994 person-years of observation (PYO). Unadjusted F:M HR was 1.38 (95% confidence interval [CI], 1.15-1.65) and remained significant after adjusting for behavioral and demographic risk factors (1.39 [95% CI, 1.12-1.72]). Although syringe and equipment sharing were associated with the highest HCV incidence rate in women (41.62 and 36.83 PYO, respectively), we found no sex differences attributed to these risk factors. Conclusions: Our findings indicate that women who inject drugs may be at greater risk of HCV acquisition than men, independent of demographic characteristics and risk behaviors. Multiple factors, including biological (hormonal), social network, and differential access to prevention services, may contribute to increased HCV susceptibility in women who inject drugs.


Assuntos
Hepatite C/epidemiologia , Fatores Sexuais , Abuso de Substâncias por Via Intravenosa/complicações , Adulto , Feminino , Humanos , Incidência , Masculino , Estudos Prospectivos , Fatores de Risco
12.
Am J Public Health ; 108(8): 987-993, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29927653

RESUMO

OBJECTIVES: To evaluate the effects of California Proposition 47, which reclassified felony drug offenses to misdemeanors in 2014, on racial/ethnic disparities in drug arrests. METHODS: Using data on all drug arrests made in California from 2011 to 2016, we compared racial/ethnic disparities in drug arrests between Whites, Blacks, and Latinos, immediately and 1 year after policy changes, controlling for secular and seasonal trends. RESULTS: In the month following passage, absolute Black-White disparities in monthly felony drug arrests decreased from 81 to 44 per 100 000 and continued to decrease over time. There was an immediate increase of 27% in the relative disparity, however, because a higher proportion of felony offense types among Whites was reclassified. Total drug arrest rates also declined, suggesting drug law enforcement was deprioritized. During the first year after enactment, felony drug arrests fell by an estimated 51 985 among Whites, 15 028 among Blacks, and 50 113 among Latinos. CONCLUSIONS: Reducing criminal penalties for drug possession can reduce racial/ethnic disparities in criminal justice exposure and has implications for improving health inequalities linked to social determinants of health.


Assuntos
Direito Penal/estatística & dados numéricos , Etnicidade/estatística & dados numéricos , Drogas Ilícitas/legislação & jurisprudência , Grupos Raciais/estatística & dados numéricos , Adolescente , Adulto , California , Humanos , Pessoa de Meia-Idade , Fatores Socioeconômicos , Adulto Jovem
13.
AIDS Behav ; 22(Suppl 1): 4-9, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29435795

RESUMO

We mapped hot spots and estimated the numbers of people who use drugs (PWUD) and who inject drugs (PWID) in 12 regions of Tanzania. Primary (ie, current and past PWUD) and secondary (eg, police, service providers) key informants identified potential hot spots, which we visited to verify and count the number of PWUD and PWID present. Adjustments to counts and extrapolation to regional estimates were done by local experts through iterative rounds of discussion. Drug use, specifically cocaine and heroin, occurred in all regions. Tanga had the largest numbers of PWUD and PWID (5190 and 540, respectively), followed by Mwanza (3300 and 300, respectively). Findings highlight the need to strengthen awareness of drug use and develop prevention and harm reduction programs with broader reach in Tanzania. This exercise provides a foundation for understanding the extent and locations of drug use, a baseline for future size estimations, and a sampling frame for future research.


Assuntos
Usuários de Drogas/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Abuso de Substâncias por Via Intravenosa/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto , Bases de Dados Factuais , Feminino , Redução do Dano , Inquéritos Epidemiológicos , Humanos , Masculino , Vigilância da População , Tanzânia/epidemiologia , Adulto Jovem
14.
Subst Use Misuse ; 53(8): 1281-1287, 2018 07 03.
Artigo em Inglês | MEDLINE | ID: mdl-29286888

RESUMO

BACKGROUND: To date, research applying the Sexual Relationship Power Scale (SRPS) has been limited to sexual risk behaviors. OBJECTIVE: We measured levels of sexual relationship power and examined associations between sexual relationship power and injecting and sexual behaviors that place women at increased risk for blood borne infections. METHODS: Using data from a cross-sectional study of young women who inject drugs (WWID) in San Francisco, USA, logistic regression analysis identified independent associations between SRPS and subscale scores (relationship control [RC] and decision making dominance [DMD]) and injecting and sexual behaviors. RESULTS: Of the 68 young WWID, 24 (34%) reported receptive syringe sharing, 38 (56%) reused/shared a cooker to prepare drugs, and 25 (37%) injected someone else's drug residue during the three-months prior to enrollment. Most (60, 88%) reported condomless sex with main sex-partner, 8 (12%) reported transactional sex, and 36 (53%) had two or more recent sex partners. The median SRPS score was 2.98 (IQR: 2.65, 3.18), 3.23 (IQR: 3.23, 3.57) for RC and 2.40 (IQR: 2.20, 2.60) for DMD. No significant associations were detected between SRPS or DMD and injecting or sexual risk behaviors. After adjusting for gender and years injecting, for every one-point increase in RC, women had a 6.70 lower odds of recent condomless sex (95%CI: 0.92, 50.00, p = 0.06), and a 3.90 lower odds of recent transactional sex (95%CI: 1.22, 12.50, p = 0.02). CONCLUSION: Our study findings suggest that some components of sexual relationship power may play a role in sexual risk, but not in injecting risk.


Assuntos
Usuários de Drogas/psicologia , Poder Psicológico , Comportamento Sexual/psicologia , Parceiros Sexuais/psicologia , Abuso de Substâncias por Via Intravenosa/psicologia , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Uso Comum de Agulhas e Seringas/psicologia , Assunção de Riscos , Adulto Jovem
15.
Clin Infect Dis ; 64(7): 860-869, 2017 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-28362947

RESUMO

BACKGROUND: We determined temporal trends (1985-2011) in hepatitis C virus (HCV) incidence and associated behavioral exposures for people who inject drugs (PWID) from the United States (Boston, Baltimore, and San Francisco), Canada (Montreal), the Netherlands (Amsterdam), and Australia (Sydney and Melbourne). METHODS: Using population-based cohort data from HCV-negative PWID, we calculated overall and within-city HCV incidence trends, HCV rates by study enrollment period (1985-2011), and temporal trends in exposure behaviors. Poisson regression models estimated trends in HCV incidence over calendar-time. Survival models identified risk factors for HCV incidence across cities and estimated independent effects of city and calendar period on HCV infection risk. RESULTS: Among 1391 initially HCV-negative participants followed prospectively (1644.5 person-years of observation [PYO]), 371 HCV incident infections resulted in an overall incidence of 22.6 per 100 PYO (95% confidence interval [CI], 20.4-25.0). Incidence was highest and remained elevated in Baltimore (32.6/100 PYO), San Francisco (24.7/100 PYO), and Montreal (23.5/100 PYO), lowest in Melbourne and Amsterdam (7.5/100 PYO and 13.1/100 PYO, respectively), and moderate (21.4/100 PYO) in Sydney. Higher rates of syringe and equipment sharing and lower prevalence of opioid agonist therapy were associated with HCV incidence in cities with the highest incidence. Risk for infection dropped by 18% for every 3-year increase in calendar-time (adjusted hazard ratio, 0.8 [95% CI, .8-.9]) in the multivariable model. CONCLUSIONS: Differences in prevention strategies and injecting contexts may explain the ongoing high HCV incidence in these North American cities and emphasize the need for scale-up of opioid agonist therapy and increased coverage of needle and syringe programs in North America.


Assuntos
Usuários de Drogas/estatística & dados numéricos , Hepatite C/epidemiologia , Hepatite C/transmissão , Adulto , Estudos de Coortes , Feminino , Hepacivirus/genética , Hepatite C/virologia , Humanos , Incidência , Perda de Seguimento , Masculino , Vigilância da População , Medição de Risco , Fatores de Risco , Análise Espaço-Temporal , Adulto Jovem
16.
J Infect Dis ; 214(9): 1383-1389, 2016 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-27571901

RESUMO

BACKGROUND: Bayesian evolutionary analysis (coalescent analysis) based on genetic sequences has been used to describe the origins and spread of rapidly mutating RNA viruses, such as influenza, Ebola, human immunodeficiency virus (HIV), and hepatitis C virus (HCV). METHODS: Full-length subtype 1a and 3a sequences from early HCV infections from the International Collaborative of Incident HIV and Hepatitis C in Injecting Cohorts (InC3), as well as from public databases from a time window of 1977-2012, were used in a coalescent analysis with BEAST software to estimate the origin and progression of the HCV epidemics in Australia and North America. Convergent temporal trends were sought via independent epidemiological modeling. RESULTS: The epidemic of subtype 3a had more recent origins (around 1950) than subtype 1a (around 1920) in both continents. In both modeling approaches and in both continents, the epidemics underwent exponential growth between 1955 and 1975, which then stabilized in the late 20th century. CONCLUSIONS: Historical events that fuelled the emergence and spread of injecting drug use, such as the advent of intravenous medical therapies and devices, and growth in the heroin trade, as well as population mixing during armed conflicts, were likely drivers for the cross-continental spread of the HCV epidemics.


Assuntos
Hepacivirus/genética , Hepatite C/epidemiologia , Hepatite C/virologia , Austrália/epidemiologia , Teorema de Bayes , Evolução Biológica , Epidemias , Infecções por HIV/epidemiologia , Infecções por HIV/virologia , Humanos , América do Norte/epidemiologia , RNA Viral/genética , Abuso de Substâncias por Via Intravenosa/virologia
17.
Hepatology ; 59(1): 109-20, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23908124

RESUMO

UNLABELLED: Although 20%-40% of persons with acute hepatitis C virus (HCV) infection demonstrate spontaneous clearance, the time course and factors associated with clearance remain poorly understood. We investigated the time to spontaneous clearance and predictors among participants with acute HCV using Cox proportional hazards analyses. Data for this analysis were drawn from an international collaboration of nine prospective cohorts evaluating outcomes after acute HCV infection. Among 632 participants with acute HCV, 35% were female, 82% were Caucasian, 49% had interleukin-28 (IL28)B CC genotype (rs12979860), 96% had injected drugs ever, 47% were infected with HCV genotype 1, and 7% had human immunodeficiency virus (HIV) coinfection. Twenty-eight percent were HCV antibody negative/RNA positive at the time of acute HCV detection (early acute HCV). During follow-up, spontaneous clearance occurred in 173 of 632, and at 1 year after infection, 25% (95% confidence interval [CI]: 21, 29) had cleared virus. Among those with clearance, the median time to clearance was 16.5 weeks (IQR: 10.5, 33.4), with 34%, 67%, and 83% demonstrating clearance at 3, 6, and 12 months. Adjusting for age, factors independently associated with time to spontaneous clearance included female sex (adjusted hazards ratio [AHR]: 2.16; 95% CI: 1.48, 3.18), IL28B CC genotype (versus CT/TT; AHR, 2.26; 95% CI: 1.52, 3.34), and HCV genotype 1 (versus non-genotype 1; AHR: 1.56; 95% CI: 1.06, 2.30). The effect of IL28B genotype and HCV genotype on spontaneous clearance was greater among females, compared to males. CONCLUSIONS: Female sex, favorable IL28B genotype, and HCV genotype 1 are independent predictors of spontaneous clearance. Further research is required to elucidate the observed sex-based differences in HCV control.


Assuntos
Hepacivirus/genética , Hepatite C/epidemiologia , Interleucinas/genética , Adulto , Feminino , Seguimentos , Genótipo , Hepatite C/genética , Hepatite C/virologia , Humanos , Interferons , Masculino , Estudos Prospectivos , Remissão Espontânea , Fatores Sexuais
18.
Healthcare (Basel) ; 12(7)2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38610138

RESUMO

BACKGROUND: Telemedicine offers the opportunity to provide clinical services remotely, thereby bridging geographic distances for people engaged in the medical system. Following the COVID-19 pandemic, the widespread adoption of telemedicine in clinical practices has persisted, highlighting its continued relevance for post-pandemic healthcare. Little is known about telemedicine use among people from socially marginalized groups. METHODS: The No One Waits (NOW) Study is a single-arm clinical trial measuring the acceptability, feasibility, and safety of an urban point-of-diagnosis hepatitis C (HCV) treatment initiation model delivered in a non-clinical community setting. Participants enrolled in the NOW Study are recruited via street outreach targeting people experiencing homelessness and injecting drugs. Throughout the NOW Study, clinical care is delivered through a novel staff-facilitated telemedicine model that not only addresses geographic and transportation barriers, but also technology and medical mistrust, barriers often unique to this population. While clinicians provide high-quality specialty practice-based care via telemedicine, on-site staff provide technical support, aid in communication and rapport, and review the clinicians' instructions and next steps with participants following the visits. Research questionnaires collect information on participants' experience with and perceptions of telemedicine (a) prior to treatment initiation and (b) at treatment completion. DISCUSSION: For people from socially marginalized groups with HCV infection, creative person-centered care approaches are necessary to diagnose, treat, and cure HCV. Although non-clinical, community-based staff-facilitated telemedicine requires additional resources compared to standard-of-care telemedicine, it could expand the reach and offer a valuable entrance into technology-delivered care for socially marginalized groups. TRIAL REGISTRATION: NCT03987503.

19.
Int J Drug Policy ; : 104452, 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38910096

RESUMO

BACKGROUND: Young adult (18-30 years) people who inject drugs (PWID) face high hepatitis C virus (HCV) prevalence. In San Francisco, where >60% of PWID lack stable housing, barriers hinder HCV treatment access. We assessed progress towards the World Health Organization's (WHO) HCV elimination goal of an 80% reduction in incidence over 2015-2030, focusing on young (YPWID) and unstably housed PWID in San Francisco. METHODS: We developed a dynamic HCV transmission model among PWID, parameterized and calibrated using bio-behavioural survey datasets from San Francisco. This included 2018 estimates for the antibody-prevalence among PWID (77%) and care cascade estimates for HCV for YPWID (72% aware of their status and 33% ever initiating treatment). Based on programmatic data, we assumed a 53.8% reduction in testing and 40.7% decrease in treatment from 2020 due to the COVID-19 pandemic, which partially rebounded from April 2021 with testing rates then being 31.1% lower than pre-pandemic rates and treatment numbers being 19.5% lower. We simulated different scenarios of how services changed after the pandemic to project whether elimination goals would be met. RESULTS: Continuing post-pandemic rates of testing and treatment, the model projects an 83.3% (95% credibility interval [95% CrI]:60.6-96.9%) decrease in incidence among PWID over 2015-2030 to 1.5/100pyrs (95% CrI:0.3-4.4) in 2030. The probability of achieving the elimination goal by 2030 is 62.0%. Among YPWID and unstably housed PWID, the probability of achieving the elimination goal by 2030 is 54.8 and 67.6%, respectively. Importantly, further increasing testing and treatment rates to pre-pandemic levels by 2025 only results in a small increase in the probability (67.5%) of the elimination goal being achieved among all PWID by 2030, while increased coverage of medication for opioid use disorder among YPWID and/or housing interventions results in the probability of achieving elimination increasing to over 75%. CONCLUSION: The COVID-19 pandemic impeded progress toward achieving HCV elimination. Our findings indicate that existing partial rebounds in HCV testing and treatment may achieve the elimination goal by 2030, with an additional scale-up of interventions aimed at YPWID or unstably housed PWID ensuring San Francisco is likely to achieve elimination by 2030.

20.
J Clin Transl Sci ; 8(1): e22, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38384906

RESUMO

Objective: Despite advances in incorporating diversity and structural competency into medical education curriculum, there is limited curriculum for public health research professionals. We developed and implemented a four-part diversity, equity, and inclusion (DEI) training series tailored for academic health research professionals to increase foundational knowledge of core diversity concepts and improve skills. Methods: We analyzed close- and open-ended attendee survey data to evaluate within- and between-session changes in DEI knowledge and perceived skills. Results: Over the four sessions, workshop attendance ranged from 45 to 82 attendees from our 250-person academic department and represented a mix of staff (64%), faculty (25%), and trainees (11%). Most identified as female (74%), 28% as a member of an underrepresented racial and ethnic minority (URM) group, and 17% as LGBTQI. During all four sessions, attendees increased their level of DEI knowledge, and within sessions two through four, attendees' perception of DEI skills increased. We observed increased situational DEI awareness as higher proportions of attendees noted disparities in mentoring and opportunities for advancement/promotion. An increase in a perceived lack of DEI in the workplace as a problem was observed; but only statistically significant among URM attendees. Discussion: Developing applied curricula yielded measurable improvements in knowledge and skills for a diverse health research department of faculty, staff, and students. Nesting this training within a more extensive program of departmental activities to improve climate and address systematic exclusion likely contributed to the series' success. Additional research is underway to understand the series' longer-term impact on applying skills for behavior change.

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