Publications by authors named "Keri N Althoff"

Background: People with human immunodeficiency virus (HIV; PWH) are at increased risk of hepatitis C virus (HCV) coinfection and experiencing negative clinical outcomes. We evaluated direct-acting antiviral (DAA) initiation among PWH with HCV to identify factors associated with initiation.

Methods: US and Canadian PWH ≥18 years with a detectable HCV RNA in the North American AIDS Cohort Collaboration on Research and Design were followed up from the latest of first detectable HCV viremia, antiretroviral therapy initiation, enrollment date, or 1 January 2014 until the first of DAA prescription, clearance of HCV viremia, loss to follow-up, death, or 31 December 2021.

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Background: Stagnating declines in Kaposi sarcoma (KS) among men with HIV (MWH) following Treat-All policies necessitate evaluating changes in clinical drivers of KS. We examined clinical factors and their associations with KS rates among MWH in North America.

Methods: Among MWH in the North American AIDS Cohort Collaboration on Research and Design, we estimated annual KS rates (per 100,000 person-years [PY]) by viral suppression (<200 copies/mL), CD4 count (<500 vs.

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Background: Among communities with elevated HIV burden, increased uptake of PrEP, including long-acting injectable (LAI) PrEP, could lower HIV incidence. Lack of data on LAI PrEP interest among transgender women in the United States has limited scientific understanding of the potential impact of LAI PrEP on new infections within transgender communities. Our objective was to determine the percent of transgender women interested in LAI PrEP and identify correlates of interest.

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Objective: To evaluate the effectiveness and benefit-harm balance of various statins for the primary prevention of cardiovascular disease in people with HIV.

Design: Target trial and modelling study.

Setting: North American AIDS Cohort Collaboration on Research and Design (NA-ACCORD), 1995 to 2019.

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Background: Hospitalization causes among persons with HIV (PWH) have shifted to non-AIDS conditions, but the complete disease profile of hospitalized PWH has not been well described. To inform hospitalization and readmission prevention efforts, we examined non-AIDS disease prevalence among PWH hospitalized in four US and one Canadian cohorts.

Methods: Among PWH with ≥1 hospitalization from 2008 to 2018, we used log-binomial regression with generalized estimating equations to estimate trends in the annual prevalence of hepatitis B virus (HBV), hepatitis C virus (HCV), hypertension, hyperlipidemia, diabetes mellitus, chronic kidney disease stage ≥3 (CKD), and multimorbidity (≥2 and ≥3 conditions), defined using longitudinal diagnosis, medication, and laboratory data.

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Background: The association of anemia as a predictive and prognostic indicator of non-AIDS-defining cancer (NADC) among people with HIV (PWH) remains unknown. We evaluated the presence of anemia and its severity as a predictor of NADC and 5-year all-cause survival after an NADC diagnosis among PWH who had initiated antiretroviral therapy.

Setting: North American AIDS Cohort Collaboration on Research and Design (NA-ACCORD).

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Background: Although 30-day hospital readmission is a widely followed quality measure, there are limited US nationwide data to evaluate its trends among people with HIV (PWH) and the sex disparity over time. We describe the 30-day all-cause unplanned readmission trends among PWH and people without HIV (PWoH) in the United States.

Setting: Adult participants in the 2010-2020 Nationwide Readmissions Database, which weighted represents all US hospitalizations each year.

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Background: We developed a United States-based real-world data resource to better understand the continued impact of the coronavirus disease 2019 (COVID-19) pandemic on immunocompromised patients, who are typically underrepresented in prospective studies and clinical trials.

Methods: The COVID-19 Real World Data infrastructure (CRWDi) was created by linking and harmonizing de-identified HealthVerity medical and pharmacy claims data from 1 December 2018 to 31 December 2023, with severe acute respiratory syndrome coronavirus 2 virologic and serologic laboratory data from major commercial laboratories and Northwell Health; COVID-19 vaccination data; and, for patients with cancer, 2010 to 2021 National Cancer Institute Surveillance, Epidemiology, and End Results registry data.

Results: The CRWDi contains 4 cohorts: patients with cancer; patients with rheumatic diseases receiving pharmacotherapy; noncancer solid organ and hematopoietic stem cell transplant recipients; and people from the general population including adults and pediatric patients.

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Background: The effect of initial antiretroviral therapy (ART) class on cancer risk in people with HIV (PWH) remains unclear.

Setting: Cohort study of 36,322 PWH enrolled (1996-2014) in the North American AIDS Cohort Collaboration on Research and Design.

Methods: We followed individuals from ART initiation (protease inhibitor [PI]-, non-nucleoside reverse transcriptase inhibitor [NNRTI]-, or integrase strand transfer inhibitor [INSTI]-based) until incident cancer, death, loss-to-follow-up, 12/31/2014, 85 months (intention-to-treat analyses [ITT]), or 30 months (per-protocol [PP] analyses).

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HIV incidence among transgender women remains high and disproportionately impacts young, Black, and Latina transgender women. Data on preferred PrEP modalities among this population are limited. Participants in The LITE Cohort completed a survey module on PrEP modality preferences during 24-month study visits.

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Background: While people with human immunodeficiency virus (PWH) start antiretroviral treatment (ART) regardless of CD4 count, CD4 measurement remains crucial for detecting advanced human immunodeficiency virus (HIV) disease and evaluating ART programs. We explored CD4 measurement (proportion of PWH with a CD4 result available) and prevalence of CD4 <200 cells/µL (hereafter "CD4 <200") at ART initiation within the International epidemiology Databases to Evaluate AIDS (IeDEA) global collaboration.

Methods: We included PWH at participating ART programs who first initiated ART at age 15-80 years during 2005-2019.

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HIV care continuum outcome disparities by health insurance status have been noted among people with HIV (PWH). We therefore examined associations between state Medicaid expansion and HIV outcomes in the United States. Adults (≥18 years) with ≥1 visit in NA-ACCORD clinical cohorts from 2012-2017 contributed person-time annually between first and final visit or death; in each calendar year, clinical retention was ≥2 completed visits > 90 days apart, antiretroviral therapy (ART) receipt was receipt of ≥3 antiretroviral agents, and viral suppression was last measured HIV-1 RNA < 200 copies/mL.

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Article Synopsis
  • Socioeconomic status (SES) affects the well-being of people living with HIV (PWH), and using area-level SES indicators can help when individual data isn't available.
  • ZIP code-level SES indicators were found to relate to viral suppression rates, and racial disparities in viral suppression narrowed by 3%-4% when accounting for SES factors.
  • This study suggests that including ZIP code-based SES can enhance understanding of how social determinants and racial disparities impact health outcomes for PWH.
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  • Transgender women (TW) face significant challenges with HIV, and there's a growing interest in using digital methods for HIV research, though bias between digital and site-based data collection is under-explored.
  • A study involving 1,312 TW in the eastern and southern USA compared characteristics of those participating in site-based versus digital modes, focusing on demographics, healthcare access, and mental health factors.
  • Results indicated that site-based participants were generally younger, more likely to identify as people of color, and had different experiences and risks related to HIV compared to those who participated online, suggesting that a hybrid approach may provide a more representative sample for research.
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Article Synopsis
  • The HEALthy Brain and Child Development (HBCD) Study is a long-term research project focusing on the development of children's brains and related factors, starting from pregnancy through early childhood.
  • It aims to include a diverse range of pregnant individuals in the U.S., with a specific emphasis on those who use substances during pregnancy, in order to study the effects of prenatal substance use on child development.
  • The study employs innovative recruitment strategies, continuous monitoring of participant groups, and careful planning of data collection methods to ensure valid and reliable results over time.
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Background: In the United States, transgender women are disproportionately impacted by HIV and prioritized in the national strategy to end the epidemic. Individual, interpersonal, and structural vulnerabilities underlie HIV acquisition among transgender women and fuel syndemic conditions, yet no nationwide cohort monitors their HIV and other health outcomes.

Objective: Our objective is to develop a nationwide cohort to estimate HIV incidence, identify risk factors, and investigate syndemic conditions co-occurring with HIV vulnerability or acquisition among US transgender women.

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Background: Anemia is an independent predictor of mortality, which may be utilized as a signal of deteriorating health. We estimated the association between anemia severity categories and mortality following the initiation of antiretroviral therapy (ART) among people with HIV (PWH) in North America.

Methods: Within the NA-ACCORD, annual median hemoglobin measurements between January 01, 2007, and December 31, 2016, were categorized using World Health Organization criteria into mild (11.

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Article Synopsis
  • Anemia is prevalent among people living with HIV (PWH), and categorizing it by mean corpuscular volume (MCV) can help identify its underlying causes while receiving antiretroviral therapy (ART).
  • In a study of nearly 15,000 anemic PWH, 74% had normocytic anemia, while smaller percentages had microcytic or macrocytic types, with distinctions based on sex.
  • The study found that older age and comorbidities increased the likelihood of developing macrocytic anemia; however, the overall rates of macrocytic anemia decreased over time as microcytic anemia rates increased among females.
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Article Synopsis
  • Researchers looked at why some patients with HIV go back to the hospital within 30 days after leaving, compared to those without HIV.
  • They studied a lot of hospital records from 2019 and found that patients with HIV had a higher chance (20.9%) of being readmitted than those without HIV (12.2%).
  • Young women with HIV had the highest readmission rates, and overall, patients with HIV need more support to stay healthy after being hospitalized.
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Background: Anal cancer risk is elevated among people with HIV. Recent anal cancer incidence patterns among people with HIV in the United States and Canada remain unclear. It is unknown how the incidence patterns may evolve.

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Background: While national adoption of universal HIV treatment guidelines has led to improved, timely uptake of antiretroviral therapy (ART), longer-term care outcomes are understudied. There is little data from real-world service delivery settings on patient attrition, viral load (VL) monitoring, and viral suppression (VS) at 24 and 36 months after HIV treatment initiation.

Methods And Findings: For this retrospective cohort analysis, we used observational data from 25 countries in the International epidemiology Databases to Evaluate AIDS (IeDEA) consortium's Asia-Pacific, Central Africa, East Africa, Central/South America, and North America regions for patients who were ART naïve and aged ≥15 years at care enrollment between 24 months before and 12 months after national adoption of universal treatment guidelines, occurring 2012 to 2018.

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The prevalence and correlates of food insecurity-the unavailability of food and limited access to it-have not been adequately considered among transgender women (TW), particularly alongside other health-related conditions burdening this population, such as HIV infection. This study examined the prevalence and correlates of food insecurity among TW. Between 2018 and 2020, 1590 TW in the Eastern and Southern U.

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Objective: Almost 400 000 people with HIV (PWH) in the United States are over age 55 years and at risk for age-associated dementias (AAD), including Alzheimer's disease and vascular contributions to cognitive impairment and dementia (VCID). We projected the cumulative incidence and mortality associated with AAD among PWH at least 60 years in the United States compared with the general population.

Design/methods: Integrating the CEPAC and AgeD-Pol models, we simulated two cohorts of 60-year-old male and female individuals: PWH, and the general US population.

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Objectives: To measure associations between residential moves because of unaffordable housing costs and disruptions in access to the Supplemental Nutrition Assistance Program; the Special Supplemental Nutrition Program for Women, Infants, and Children; and Medicaid in a health care-based sample of families with young children.

Methods: We used cross-sectional survey data on social safety net-eligible caregivers and children recruited into the Children's HealthWatch study from emergency departments and primary care clinics in Baltimore and Philadelphia (2011-2019). Children's HealthWatch measured residential moves (cost-driven and noncost-driven) in the past year and disruptions in safety net access.

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