Browsing by Author "Anastos K"

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Cervical cancer prevention and care in HIV clinics across sub-Saharan Africa: results of a facility-based survey.
(2024-Jul) Asangbeh-Kerman SL; Davidović M; Taghavi K; Dhokotera T; Manasyan A; Sharma A; Jaquet A; Musick B; Twizere C; Chimbetete C; Murenzi G; Tweya H; Muhairwe J; Wools-Kaloustian K; Technau KG; Anastos K; Yotebieng M; Jousse M; Ezechi O; Orang'o O; Bosomprah S; Pierre Boni S; Basu P; Bohlius J; Graduate School for Health Sciences, University of Bern, Bern, Switzerland.; Department of Medicine and Epidemiology, Albert Einstein College of Medicine, Bronx, New York, USA.; Department of Biostatistics, School of Public Health, University of Ghana, Accra, Ghana.; Empilweni Services and Research Unit, Rahima Moosa Mother and Child Hospital, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.; Newlands Clinic, Harare, Zimbabwe.; Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France.; Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, USA.; Institute of Global Health, University of Geneva, Geneva, Switzerland.; Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.; Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.; Programme PAC-CI, Site ANRS Treichville, Abidjan, Côte d'Ivoire.; Moi University, Eldoret, Kenya.; Department of Paediatrics and Child Health, Rahima Moosa Mother and Child Hospital, Johannesburg-Braamfontein, South Africa.; SolidarMed, Partnership for Health, Chiure, Mozambique.; Programme National de Lutte contre le Cancer (PNLCa), Abidjan, Côte d'Ivoire.; Centre National de Reference en Matière de VIH/SIDA, Bujumbura, Burundi.; University of Bordeaux, National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, Bordeaux, France.; Swiss Tropical and Public Health Institute, Allschwil, Switzerland.; Department of Clinical Sciences, Nigerian Institute of Medical Research, Lagos, Nigeria.; Einstein-Rwanda Research and Capacity Building Programme, Research for Development and Rwanda Military Hospital, Kigali, Rwanda.; SolidarMed, Partnerships for Health, Maseru, Lesotho.; Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, Indiana, USA.; Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, USA.; University of Basel, Basel, Switzerland.; Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland.; International Training and Education Centre for Health (I-TECH), Lilongwe, Malawi.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
INTRODUCTION: To eliminate cervical cancer (CC), access to and quality of prevention and care services must be monitored, particularly for women living with HIV (WLHIV). We assessed implementation practices in HIV clinics across sub-Saharan Africa (SSA) to identify gaps in the care cascade and used aggregated patient data to populate cascades for WLHIV attending HIV clinics. METHODS: Our facility-based survey was administered between November 2020 and July 2021 in 30 HIV clinics across SSA that participate in the International epidemiology Databases to Evaluate AIDS (IeDEA) consortium. We performed a qualitative site-level assessment of CC prevention and care services and analysed data from routine care of WLHIV in SSA. RESULTS: Human papillomavirus (HPV) vaccination was offered in 33% of sites. Referral for CC diagnosis (42%) and treatment (70%) was common, but not free at about 50% of sites. Most sites had electronic health information systems (90%), but data to inform indicators to monitor global targets for CC elimination in WLHIV were not routinely collected in these sites. Data were collected routinely in only 36% of sites that offered HPV vaccination, 33% of sites that offered cervical screening and 20% of sites that offered pre-cancer and CC treatment. CONCLUSIONS: Though CC prevention and care services have long been available in some HIV clinics across SSA, patient and programme monitoring need to be improved. Countries should consider leveraging their existing health information systems and use monitoring tools provided by the World Health Organization to improve CC prevention programmes and access, and to track their progress towards the goal of eliminating CC.
Comorbidities and HIV-related factors associated with mental health symptoms and unhealthy substance use among older adults living with HIV in low- and middle-income countries: a cross-sectional study.
(2025-Mar) Ross JL; Rupasinghe D; Chanyachukul T; Crabtree Ramírez B; Murenzi G; Kwobah E; Mureithi F; Minga A; Marbaniang I; Perazzo H; Parcesepe A; Goodrich S; Chimbetete C; Mensah E; Maruri F; Thi Hoai Nguyen D; López-Iñiguez A; Lancaster K; Byakwaga H; Tlali M; Plaisy MK; Nimkar S; Moreira R; Anastos K; Semeere A; Wandeler G; Jaquet A; Sohn A; Newlands Clinic, Harare, Zimbabwe.; Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.; Division of Infectious Diseases, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.; Division of Infectious Diseases, Indiana University School of Medicine, Indianapolis, Indiana, USA.; Centre for Infectious Disease Epidemiology & Research, School of Public Health, University of Cape Town, Cape Town, South Africa.; Research for Development (RD Rwanda), Kigali, Rwanda.; Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición, México City, México.; TREAT Asia/amfAR - The Foundation for AIDS Research, Bangkok, Thailand.; Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.; The HIV care clinic of the National Blood Transfusion Centre, Blood Bank Medical Centre, Abidjan, Côte d'Ivoire.; NGO Espoir-Vie Togo, Lomé, Togo.; National Hospital for Tropical Diseases, Hanoi, Vietnam.; BJ Government Medical College-JHU Clinical Research Site, Pune, India.; The Kirby Institute, UNSW Sydney, Sydney, New South Wales, Australia.; Montefiore Medical Center, Albert Einstein College of Medicine, New York, New York, USA.; Infectious Diseases Institute, Kampala, Uganda.; Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.; Mbarara ISS Clinic, Mbarara, Uganda.; National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, University of Bordeaux, Bordeaux Population Health Centre, Bordeaux, France.; AMPATH MOI University, Eldoret, Kenya.; Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia.; Instituto Nacional de Infectologia Evandro Chagas (INI), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil.
INTRODUCTION: People with HIV (PWH) are vulnerable to mental health and substance use disorders (MSDs), but the extent to which these are associated with other non-communicable diseases in ageing PWH populations remains poorly documented. We assessed comorbidities associated with symptoms of MSD among PWH ≥40 years in the Sentinel Research Network (SRN) of the International epidemiology Database to Evaluate AIDS (IeDEA). METHODS: Baseline data collected between June 2020 and September 2022, from 10 HIV clinics in Asia, Latin America and Africa contributing to the SRN, were analysed. Symptoms of MSDs and comorbidities were assessed using standardized questionnaires, anthropometric and laboratory tests, including weight, height, blood pressure, glucose, lipids, chronic viral hepatitis and liver transient elastography. HIV viral load, CD4 count and additional routine clinical data were accessed from participant interview or medical records. HIV and non-HIV clinical associations of mental illness symptoms and unhealthy substance use were analysed using logistic regression. Mental illness symptoms were defined as moderate-to-severe depressive symptoms (PHQ-9 score >9), moderate-to-severe anxiety symptoms (GAD-7 >9) or probable post-traumatic stress disorder (PCL-5 >32). Unhealthy substance use was defined as ASSIST score >3, or AUDIT ≥7 for women (≥8 for men). RESULTS: Of 2614 participants assessed at baseline study visits, 57% were female, median age was 50 years, median CD4 was 548 cells/mm CONCLUSIONS: Improved integration of MSD and comorbidity services in HIV clinical settings, and further research on the association between MSD and comorbidities, and care integration among older PWH in low-middle-income countries, are required.
Gone But Not Lost: Implications for Estimating HIV Care Outcomes When Loss to Clinic Is Not Loss to Care.
(2020-Jul) Edwards JK; Lesko CR; Herce ME; Murenzi G; Twizere C; Lelo P; Anastos K; Tymejczyk O; Yotebieng M; Nash D; Adedimeji A; Edmonds A; Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY.; Departments of Medicine and Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY.; Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia.; Institute for Implementation Science in Population Health, City University of New York, New York, NY.; Rwanda Military Hospital, Kigali, Rwanda.; Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC.; Kalembelembe Pediatric Hospital, Kinshasa, Democratic Republic of the Congo.; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.; From the Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC.; Centre Hospitalo, Universitaire de Kamenge, Bujumbura, Burundi.
BACKGROUND: In some time-to-event analyses, it is unclear whether loss to follow up should be treated as a censoring event or competing event. Such ambiguity is particularly common in HIV research that uses routinely collected clinical data to report the timing of key milestones along the HIV care continuum. In this setting, loss to follow up may be viewed as a censoring event, under the assumption that patients who are "lost" from a study clinic immediately enroll in care elsewhere, or a competing event, under the assumption that people "lost" are out of care all together. METHODS: We illustrate an approach to address this ambiguity when estimating the 2-year risk of antiretroviral treatment initiation among 19,506 people living with HIV who enrolled in the IeDEA Central Africa cohort between 2006 and 2017, along with published estimates from tracing studies in Africa. We also assessed the finite sample properties of the proposed approach using simulation experiments. RESULTS: The estimated 2-year risk of treatment initiation was 69% if patients were censored at loss to follow up or 59% if losses to follow up were treated as competing events. Using the proposed approach, we estimated that the 2-year risk of antiretroviral therapy initiation was 62% (95% confidence interval: 61, 62). The proposed approach had little bias and appropriate confidence interval coverage under scenarios examined in the simulation experiments. CONCLUSIONS: The proposed approach relaxes the assumptions inherent in treating loss to follow up as a censoring or competing event in clinical HIV cohort studies.
Trends in hepatitis B virus testing practices and management in HIV clinics across sub-Saharan Africa.
(2017-Nov-01) Coffie PA; Egger M; Vinikoor MJ; Zannou M; Diero L; Patassi A; Kuniholm MH; Seydi M; Bado G; Ocama P; Andersson MI; Messou E; Minga A; Easterbrook P; Anastos K; Dabis F; Wandeler G; Global Hepatitis Programme, HIV Department, World Health Organization, Geneva, Switzerland.; Département de Dermatologie et d'Infectiologie, UFR des Sciences Médicales, Université Félix Houphouët Boigny, Abidjan, Côte d'Ivoire. ahuatchi@gmail.com.; ISPED, Université de Bordeaux, Bordeaux, France.; Centre de Prise en charge de Recherche et de Formation. CePReF-Aconda-VS, Abidjan, Côte d'Ivoire.; Centre Médical de Suivi de Donneurs de Sang/ CNTS/PRIMO-CI, Abidjan, Côte d'Ivoire.; Department of Medicine, Moi University, College of Health Sciences, School of Medicine, Eldoret, Kenya.; Programme PACCI, CHU Treichville, Site de Recherche ANRS, Abidjan, Côte d'Ivoire. ahuatchi@gmail.com.; Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda.; Service des Maladies Infectieuses et de Pneumologie, CHU Sylvanus Olympio, Lomé, Togo.; Division of Medical Virology, Department of Pathology, University of Stellenbosch and Tygerberg Academic Hospital, Cape Town, South Africa.; Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.; Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland. gilles.wandeler@ispm.unibe.ch.; Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York, USA.; INSERM U1219, Bordeaux Population Health, Bordeaux, France.; Centre for Infectious Disease Epidemiology and Research (CIDER), University of Cape Town, Cape Town, South Africa.; Hôpital de Jour, Service des Maladies Infectieuses et Tropicales, CHU Souro Sanou, Bobo Dioulasso, Burkina Faso.; Infectious Diseases Institute, Kampala, Uganda.; Department of Infectious Diseases, Fann University Hospital, Dakar, Senegal.; Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY, USA.; Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland. gilles.wandeler@ispm.unibe.ch.; Service de Médecine Interne, CNHU Hubert Maga, Cotonou, Benin.; Département de Dermatologie et d'Infectiologie, UFR des Sciences Médicales, Université Félix Houphouët Boigny, Abidjan, Côte d'Ivoire.; Department of Medicine at University of Alabama, Birmingham, AL, USA.; Department of Infectious Diseases, Fann University Hospital, Dakar, Senegal. gilles.wandeler@ispm.unibe.ch.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
BACKGROUND: Approximately 8% of HIV-infected individuals are co-infected with hepatitis B virus (HBV) in sub-Saharan Africa (SSA). Knowledge of HBV status is important to guide optimal selection of antiretroviral therapy (ART) and monitor/prevent liver-related complications. We describe changes in testing practices and management of HBV infection over a 3-year period in HIV clinics across SSA. METHODS: A medical chart review was conducted in large urban HIV treatment centers in Côte d'Ivoire (3 sites), Benin, Burkina Faso, Cameroon, Kenya, Senegal, South Africa, Togo, Uganda and Zambia (1 site each). Of the patients who started ART between 2010 and 2012, 100 per year were randomly selected from each clinic. Demographic, clinical and laboratory information as well as individual treatment histories were collected using a standardized questionnaire. We examined changes over time in the proportion of patients screened for HBV infection (HBV surface antigen [HBsAg]-positivity), identified predictors of HBV testing using logistic regression, and assessed the proportion of patients initiating a tenofovir (TDF)-containing ART regimen. RESULTS: Overall, 3579 charts of patients initiating ART (64.4% female, median age 37 years) were reviewed in 12 clinics. The proportion of patients screened for HBsAg increased from 17.8% in 2010 to 24.4% in 2012 overall, and ranged from 0.7% in Kenya to 96% in South Africa. In multivariable analyses, age and region were associated with HBsAg screening. Among 759 individuals tested, 88 (11.6%; 95% confidence interval [CI] 9.4-14.1) were HBV-infected, of whom 71 (80.7%) received a TDF-containing ART regimen. HBsAg-positive individuals were twice as likely to receive a TDF-containing first-line ART regimen compared to HBsAg-negative patients (80.7% vs. 40.3%, p < 0.001). The proportion of patients on TDF-containing ART increased from 57.9% in 2010 to 90.2% in 2012 in HIV/HBV-co-infected patients (Chi-2 test for trend: p = 0.01). Only 114 (5.0%) patients were screened for anti-HCV antibodies and one of them (0.9%, 95% CI 0.02-4.79) had a confirmed HCV infection. CONCLUSIONS: The systematic screening for HBV infection in HIV-positive patients before ART initiation was limited in most African countries and its uptake varied widely across clinics. Overall, the prescription of TDF increased over time, with 90% of HIV/HBV-coinfected patients receiving this drug in 2012.