Publications by authors named "Claudia Hawkins"

Background: People living with the human immunodeficiency virus (HIV) are at a greater risk of developing hepatocellular carcinoma (HCC), potentially due to the stimulation of inflammation by HIV infection. Inflammation-related DNA methylation signatures obtained in liquid biopsy, such as circulating cell-free DNA (cfDNA), may serve as promising minimally invasive biomarkers that can inform diagnosis of HCC.

Methods: Using data from 249 individuals with HIV (114 individuals with normal liver conditions, 69 with fibrosis, 30 with cirrhosis, and 36 with HCC), we constructed a cfDNA methylation-based inflammation score (inflammation-DNAm score) based on 54 CpGs previously associated with circulating C-reactive protein concentrations.

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Article Synopsis
  • This study updates the COVID-19 pandemic situation in Canada using two additional years of data, focusing on the period leading up to the WHO's declaration of the end of the public health emergency on May 5, 2023.
  • It summarizes the trends in COVID-19 transmissions and deaths, analyzes variant appearances using genomic data, and provides historical context for the pandemic's progression in Canada.
  • The findings indicate that Canada's COVID-19 transmission rates remained below outbreak levels for eight months before the WHO announcement, while key persistence metrics showed a significant short-term positive trend but a negative long-term trend.
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Background: HIV infection can cause malabsorption and rapid utilization of nutrients. A randomized trial of multivitamin supplementation among people living with HIV/AIDS (PLWHA) initiating antiretroviral therapy (ART) in Tanzania was stopped early due to increased alanine aminotransferase (ALT) concentrations in the multiple recommended dietary allowances (RDA) multivitamin group. We conducted detailed analysis to assess the effect of multivitamins on ALT elevations and evaluate whether subgroups of PLWHA have greater hepatotoxicity risks associated with the use of high-dose multivitamins.

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Due to shared routes of transmission, including sexual contact and vertical transmission, HIV-HBV co-infection is common, particularly in sub-Saharan Africa. Measurement of viral load (VL), for both HIV and HBV, plays a critical role for determining their infectious phase and monitoring response to antiviral therapy. Implementation of viral load testing in clinical settings is a significant challenge in resource-limited countries, notably because of cost and availability issues.

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The study explores barriers and suggestions for improving viral load testing (VLT) uptake in Tanzania, revealing that only 58% of patients receive VLT annually, contrary to the Tanzanian National Guidelines toward the 95-95-95 UNAIDS targets. Twelve individual interviews and three patient-focus groups were conducted as part of a qualitative study conducted in six human immunodeficiency virus (HIV) clinics in Dar es Salaam to identify potential suggestions for access enhancement, as well as barriers to VLT uptake. Using King's theory of goal attainment, we found that missing appointments was the primary individual barrier to VLT uptake, along with limited knowledge among individuals living with HIV.

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Background: This study updates our findings from the COVID-19 pandemic surveillance we first conducted in South Asia in 2020 with 2 additional years of data for the region. We assess whether COVID-19 had transitioned from pandemic to endemic at the point the World Health Organization (WHO) ended the public health emergency status for COVID-19 on May 5, 2023.

Objective: First, we aim to measure whether there was an expansion or contraction in the pandemic in South Asia around the WHO declaration.

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Background: This study updates the COVID-19 pandemic surveillance in Central Asia we conducted during the first year of the pandemic by providing 2 additional years of data for the region. The historical context provided through additional data can inform regional preparedness and early responses to infectious outbreaks of either the SARS-CoV-2 virus or future pathogens in Central Asia.

Objective: First, we aim to measure whether there was an expansion or contraction in the pandemic in Central Asia when the World Health Organization (WHO) declared the end of the public health emergency for the COVID-19 pandemic on May 5, 2023.

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Background: This study updates the initial COVID-19 pandemic surveillance in sub-Saharan Africa (SSA) from 2020 by providing 2 additional years of data for the region.

Objective: First, we aimed to measure whether there was an expansion or contraction in the pandemic in SSA when the World Health Organization (WHO) declared an end to the public health emergency for the COVID-19 pandemic on May 5, 2023. Second, we used dynamic and genomic surveillance methods to describe the history of the pandemic in the region and situate the window of the WHO declaration within the broader history.

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Background: Adults living with HIV (ALHIV) are at increased risk of developing metabolic syndrome (MetS). Several factors are associated with an increase in MetS in these individuals, including certain antiretroviral therapies (ART). There is limited data on the prevalence of MetS among ALHIV in sub-Saharan Africa following scale up of newer integrase inhibitor-containing ART regimens.

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Background: In May 2020, the World Health Organization (WHO) declared Latin America and the Caribbean (LAC) the epicenter of the COVID-19 pandemic, with over 40% of worldwide COVID-19-related deaths at the time. This high disease burden was a result of the unique circumstances in LAC.

Objective: This study aimed to (1) measure whether the pandemic was expanding or contracting in LAC when the WHO declared the end of COVID-19 as a public health emergency of international concern on May 5, 2023; (2) use dynamic and genomic surveillance methods to describe the history of the pandemic in the region and situate the window of the WHO declaration within the broader history; and (3) provide, with a focus on prevention policies, a historical context for the course of the pandemic in the region.

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Background: In this study, we built upon our initial research published in 2020 by incorporating an additional 2 years of data for Europe. We assessed whether COVID-19 had shifted from the pandemic to endemic phase in the region when the World Health Organization (WHO) declared the end of the public health emergency of international concern on May 5, 2023.

Objective: We first aimed to measure whether there was an expansion or contraction in the pandemic in Europe at the time of the WHO declaration.

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Background: This study updates the COVID-19 pandemic surveillance in the Middle East and North Africa (MENA) we first conducted in 2020 with 2 additional years of data for the region.

Objective: The objective of this study is to determine whether the MENA region meets the criteria for moving from a pandemic to endemic. In doing so, this study considers pandemic trends, dynamic and genomic surveillance methods, and region-specific historical context for the pandemic.

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With improved survival, adults living with HIV (ALHIV) are increasingly likely to experience age-related and HIV-related comorbidities, including renal insufficiency. Other risk factors for renal insufficiency (high blood pressure (BP), obesity, diabetes, and dyslipidemia) are also growing more common among ALHIV. To determine the prevalence of renal insufficiency (defined as an eGFR < 60 mL/min/1.

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Unlabelled: The COVID-19 pandemic and associated prevention strategies caused widespread interruptions to care and treatment for people living with HIV. Adolescents living with HIV (AWHIV) were particularly vulnerable to poor mental and physical health during COVID-19. We assessed the burden of generalized and COVID-19-related anxiety and associations with adherence to HIV care and treatment and viral load suppression (VLS) among AWHIV during the peak of the COVID-19 pandemic in Tanzania.

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Background: For adults living with HIV (ALHIV) and comorbidities, access to comprehensive healthcare services is crucial to achieving optimal health outcomes. This study aims to describe lived experiences, challenges, and coping strategies for accessing care for hypertension and/or diabetes (HTN/DM) in HIV care and treatment clinics (CTCs) and other healthcare settings.

Methodology: We conducted a qualitative study that employed a phenomenological approach between January and April 2022 using a semi-structured interview guide in six HIV CTCs in Dar es Salaam, Tanzania.

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Introduction: We determined steatotic liver disease (SLD) incidence in a prospective cohort of men with HIV (MWH) and men without HIV (MWOH).

Methods: Incident SLD was defined using paired noncontrast computed tomography scans performed during 2010-2013 and repeated during 2015-2017.

Results: Of 268 men, 173 MWH and 95 MWOH, 33 had incident SLD (11.

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Background: An enhanced understanding of renal outcomes in persons with chronic HBV, HIV, and HBV/HIV coinfection is needed to mitigate chronic kidney disease in regions where HBV and HIV are endemic.

Objectives: To investigate changes in estimated glomerular filtration rate (eGFR) in adults with HBV, HIV or HBV/HIV enrolled in a 3 year prospective cohort study of liver outcomes in Dar es Salaam, Tanzania and initiated on antiviral therapy.

Methods: We compared eGFR between and within groups over time using mixed-effects models.

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Article Synopsis
  • PWUD in Tanzania face stigma related to both drug use and HIV, impacting their health and social outcomes, prompting the need for culturally adapted stigma measurement tools.
  • The study involved translating existing stigma measures, adding new items, and conducting cognitive debriefing with a diverse group of PWUD to ensure comprehension in the Tanzanian context.
  • Results showed that a majority of adapted items were understood by participants, although some challenges in translation and interpretation were addressed, leading to successfully adapted measures for future research on stigma's psychometric properties.
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Background: During the COVID-19 pandemic, telemedicine was adopted to ensure continuity of HIV care. We examined how introducing televisits affected technical quality of care for people with HIV (PWH) during this time.

Methods: PWH receiving HIV care at Howard Brown Health Centers and Northwestern University in Chicago, Illinois were included.

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Background: The integration of patient-reported outcome measures (PROMS) into health care delivery systems is being increasingly recognized as an important component of quality, person-centered care, especially for chronic illnesses like congestive heart failure (CHF). However, while PROMS are increasingly being used to follow up CHF patients in high income countries, their use in sub-Saharan Africa is still limited. We adapted the Kansas City Cardiomyopathy Questionnaire (KCCQ-23), an internationally validated, CHF-specific PROM and tested its use in measuring outcomes in an outpatient CHF clinic at a cardiac referral hospital in Tanzania.

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While viral load (VL) testing is critical to effective treatment of human immunodeficiency virus (HIV), little is known about patients' experiences with, and barriers to VL-testing in the context of HIV infection. We assessed patient reported experience measures (PREMs) on VL-testing in public HIV clinics in Tanzania. In a cross-sectional convergent mixed method study, we collected information on VL test related PREMs, clinical and sociodemographic factors.

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While Hepatitis B virus (HBV) and the human immunodeficiency virus (HIV) are endemic in West Africa, the prevalence of HBV/HIV coinfection and their associated risk factors in children remains unclear. In this review, we sought to assess HBsAg seroprevalence among 0- to 16-year-olds with and without HIV in West African countries and the risk factors associated with HBV infection in this population. Research articles between 2000 and 2021 that reported the prevalence of HBV and associated risk factors in children in West Africa were retrieved from the literature using the Africa Journals Online (AJOL), PubMed, Google Scholar, and Web of Science databases as search tools.

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Introduction: Hepatocellular carcinoma (HCC) is an increasing cause of mortality in Nigeria among persons with HIV (PLH), as access to antiretroviral therapy (ART) improves. In this study we describe clinical, radiological, and laboratory characteristics in Nigerian adults with HCC, with and without HIV, and examine how HIV impacts survival.

Methods: This prospective observational study was conducted between August 2018 and November 2021 at two Nigerian hospitals [Jos University Teaching Hospital (JUTH) and Lagos University Teaching Hospital (LUTH)].

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