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Bakoyannis G, Elul B, Wools-Kaloustian KK, Brown S, Semeere A, Castelnuovo B, Diero L, Nakigozi G, Lyamuya R, Yiannoutsos CT. Modeling the HIV Cascade of Care Using Routinely Collected Clinical Data to Guide Programmatic Interventions and Policy Decisions. J Acquir Immune Defic Syndr 2024; 96:223-230. [PMID: 38905474 DOI: 10.1097/qai.0000000000003413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/05/2023] [Indexed: 06/23/2024]
Abstract
BACKGROUND The HIV care cascade is a framework to examine effectiveness of HIV programs and progress toward global targets to end the epidemic but has been conceptualized as a unidirectional process that ignores cyclical care patterns. We present a dynamic cascade that accounts for patient "churn" and apply novel analytic techniques to readily available clinical data to robustly estimate program outcomes and efficiently assess progress toward global targets. METHODS Data were assessed for 35,649 people living with HIV and receiving care at 78 clinics in East Africa between 2014 and 2020. Patients were aged ≥15 years and had ≥1 viral load measurements. We used multi-state models to estimate the probability of being in 1 of 5 states of a dynamic HIV cascade: (1) in HIV care but not on antiretroviral therapy (ART), (2) on ART, (3) virally suppressed, (4) in a gap-in-care, and (5) deceased and compared these among subgroups. To assess progress toward global targets, we summed those probabilities across patients and generated population-level proportions of patients on ART and virally suppressed in mid-2020. RESULTS One year after enrollment, 2.8% of patients had not initiated ART, 86.7% were receiving ART, 57.4% were virally suppressed, 10.2% were disengaged from care, and 0.3% had died. At 5 years, the proportion on ART remained steady but viral suppression increased to 77.2%. Of those aged 15-25, >20% had disengaged from care and <60% were virally suppressed. In mid-2020, 90.1% of the cohort was on ART, 90.7% of whom had suppressed virus. CONCLUSIONS Novel analytic approaches can characterize patient movement through a dynamic HIV cascade and, importantly, by capitalizing on readily available data from clinical cohorts, offer an efficient approach to estimate population-level proportions of patients on ART and virally suppressed. Significant progress toward global targets was observed in our cohort but challenges remain among younger patients.
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Affiliation(s)
| | - Batya Elul
- Mailman School of Public Health, Columbia University, New York, NY
| | | | - Steven Brown
- Indiana University School of Medicine, Indianapolis, IN
| | - Aggrey Semeere
- Infectious Disease Institutes, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Barbara Castelnuovo
- Infectious Disease Institutes, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Lameck Diero
- Department of Medicine, Moi University School of Medicine, Eldoret, Kenya
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Rosen JG, Ndyanabo A, Nakawooya H, Galiwango RM, Ssekubugu R, Ssekasanvu J, Kim S, Rucinski KB, Nakigozi G, Nalugoda F, Kigozi G, Quinn TC, Chang LW, Kennedy CE, Reynolds SJ, Kagaayi J, Grabowski MK. Incidence of Health Facility Switching and Associations With HIV Viral Rebound Among Persons on Antiretroviral Therapy in Uganda: A Population-based Study. Clin Infect Dis 2024; 78:1591-1600. [PMID: 38114162 PMCID: PMC11175689 DOI: 10.1093/cid/ciad773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/02/2023] [Accepted: 12/14/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND A substantial proportion of persons on antiretroviral therapy (ART) considered lost to follow-up have actually transferred their human immunodeficiency virus (HIV) care to other facilities. However, the relationship between facility switching and virologic outcomes, including viral rebound, is poorly understood. METHODS We used data from 40 communities (2015-2020) in the Rakai Community Cohort Study to estimate incidence of facility switching and viral rebound. Persons aged 15-49 years with serologically confirmed HIV who self-reported ART use and contributed ≥1 follow-up visit were included. Facility switching and virologic outcomes were assessed between 2 consecutive study visits (ie, index and follow-up visits, interval of approximately 18 months). Those who reported different HIV treatment facilities between index and follow-up study visits were classified as having switched facilities. Virologic outcomes included viral rebound among individuals initially suppressed (<200 copies/mL). Multivariable Poisson regression was used to estimate associations between facility switching and viral rebound. RESULTS Overall, 2257 persons who self-reported ART use (median age, 35 years; 65% female, 92% initially suppressed) contributed 3335 visit-pairs and 5959 person-years to the analysis. Facility switching was common (4.8 per 100 person-years; 95% confidence interval [CI], 4.2-5.5) and most pronounced in persons aged <30 years and fishing community residents. Among persons suppressed at their index visit (n = 2076), incidence of viral rebound was more than twice as high in persons who switched facilities (adjusted incidence rate ratio = 2.27; 95% CI, 1.16-4.45). CONCLUSIONS Facility switching was common and associated with viral rebound among persons initially suppressed. Investments in more agile, person-centered models for mobile clients are needed to address system inefficiencies and bottlenecks that can disrupt HIV care continuity.
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Affiliation(s)
- Joseph G Rosen
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | | | | | | | | | | | - Seungwon Kim
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Katherine B Rucinski
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | | | | | | | - Thomas C Quinn
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Larry W Chang
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Caitlin E Kennedy
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Rakai Health Sciences Program, Entebbe, Uganda
| | - Steven J Reynolds
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | | | - M Kate Grabowski
- Rakai Health Sciences Program, Entebbe, Uganda
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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Rosen JG, Nakyanjo N, Ddaaki WG, Zhao T, Van Vo A, Nakubulwa R, Ssekyewa C, Isabirye D, Katono RL, Nabakka P, Ssemwanga RJ, Kigozi G, Odiya S, Nakigozi G, Nalugoda F, Kigozi G, Kagaayi J, Grabowski MK, Kennedy CE. Identifying longitudinal patterns of HIV treatment (dis)engagement and re-engagement from oral histories of virologically unsuppressed persons in Uganda: A thematic trajectory analysis. Soc Sci Med 2023; 339:116386. [PMID: 37984182 PMCID: PMC10841599 DOI: 10.1016/j.socscimed.2023.116386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 10/01/2023] [Accepted: 10/28/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND There is limited study of persons deemed "harder to reach" by HIV treatment services, including those discontinuing or never initiating antiretroviral therapy (ART). We conducted narrative research in southern Uganda with virologically unsuppressed persons identified through population-based sampling to discern longitudinal patterns in HIV service engagement and identify factors shaping treatment persistence. METHODS In mid-2022, we sampled adult participants with high-level HIV viremia (≥1000 RNA copies/mL) from the prospective, population-based Rakai Community Cohort Study. Using life history calendars, we conducted initial and follow-up in-depth interviews to elicit oral histories of participants' journeys in HIV care, from diagnosis to the present. We then used thematic trajectory analysis to identify discrete archetypes of HIV treatment engagement by "re-storying" participant narratives and visualizing HIV treatment timelines derived from interviews and abstracted clinical data. RESULTS Thirty-eight participants (median age: 34 years, 68% men) completed 75 interviews. We identified six HIV care engagement archetypes from narrative timelines: (1) delayed ART initiation, (2) early treatment discontinuation, (3) treatment cycling, (4) prolonged treatment interruption, (5) transfer-related care disruption, and (6) episodic viremia. Patterns of service (dis)engagement were highly gendered, occurred in the presence and absence of optimal ART adherence, and were shaped by various factors emerging at different time points, including: denial of HIV serostatus and disclosure concerns; worsening HIV-related symptoms; psychological distress and depression; social support; intimate partner violence; ART side effects; accessibility constraints during periods of mobility; incarceration; and inflexible ART dispensing regulations. CONCLUSIONS Identified trajectories uncovered heterogeneities in both the timing and drivers of ART (re-)initiation and (dis)continuity, demonstrating the distinct characteristics and needs of people with different patterns of HIV treatment engagement throughout the life course. Enhanced mental health service provision, expanded eligibility for differentiated service delivery models, and streamlined facility switching processes may facilitate timely (re-)engagement in HIV services.
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Affiliation(s)
- Joseph G Rosen
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
| | | | | | - Tongying Zhao
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Anh Van Vo
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | | | | | | | | | | | | | | | - Silas Odiya
- Rakai Health Sciences Program, Entebbe, Uganda
| | | | | | | | | | - M Kate Grabowski
- Rakai Health Sciences Program, Entebbe, Uganda; Division of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Caitlin E Kennedy
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA; Rakai Health Sciences Program, Entebbe, Uganda
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Pry JM, Mwila C, Kapesa H, Mulabe M, Frimpong C, Moono M, Savory T, Bolton-Moore C, Herce ME, Iyer S. Estimating potential silent transfer using baseline viral load measures among people presenting as new to HIV care in Lusaka, Zambia: a cross-sectional study. BMJ Open 2023; 13:e070384. [PMID: 37230517 DOI: 10.1136/bmjopen-2022-070384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
OBJECTIVES To estimate potential silent transfer using baseline viral load measures among individuals presenting as new to HIV care in routine HIV clinical settings in Lusaka, Zambia. DESIGN Cross-sectional study. SETTING Two large, urban government-operated health facilities supported by the Centre for Infectious Disease Research in Zambia. PARTICIPANTS A total of 248 participants with an incident positive HIV rapid test. OUTCOME MEASURES The primary outcome measure was HIV viral suppression at baseline (i.e., potential silent transfer), defined as having a viral load ≤1000 RNA copies(c)/mL at the time of initiating HIV care. We also examined viral suppression at ≤60 c/mL. METHODS We surveyed and measured baseline HIV viral load as part of the national recent infection testing algorithm among people living with HIV (PLWH) presenting as new to care. Using mixed effects Poisson regression, we identified characteristics among PLWH associated with potential silent transfer. RESULTS Among the 248 PLWH included, 63% were women with median age of 30, and 66 (27% (66/248)) had viral suppression at ≤1000 c/mL and 53 (21% (53/248)) at ≤60 c/mL thresholds, respectively. Participants aged 40+ years had a significantly higher adjusted prevalence of potential silent transfer (adjusted prevalence ratio (aPR): 2.10; 95% CI: 2.08, 2.13) compared with participants aged 18-24 years. Participants reporting no formal education had a significantly higher adjusted prevalence of potential silent transfer (aPR: 1.63; 95% CI: 1.52, 1.75) compared with those completing primary education. Among 57 potential silent transfers who completed a survey, 44 (77%) indicated having tested positive previously at ≥1 of 38 clinics in Zambia. CONCLUSIONS The high proportion of PLWH with potential silent transfer points to clinic shopping and/or co-enrolment at multiple care sites simultaneously, suggesting an opportunity to improve care continuity at the time of HIV care entry.
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Affiliation(s)
- Jake M Pry
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
- Public Health Sciences, University of California Davis School of Medicine, Sacramento, California, USA
| | - Chilambwe Mwila
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Herbert Kapesa
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Musunge Mulabe
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Christiana Frimpong
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Misinzo Moono
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Theodora Savory
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Carolyn Bolton-Moore
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
- Division of Infectious Disease, The University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA
| | - Michael E Herce
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
- Institute for Global Health & Infectious Diseases, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Shilpa Iyer
- Research Department, Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
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Simbeza S, Mutale J, Mulabe M, Jere L, Bukankala C, Sikombe K, Sikazwe I, Bolton-Moore C, Mody A, Geng EH, Sharma A, Beres LK, Pry JM. Cross-sectional study to assess depression among healthcare workers in Lusaka, Zambia during the COVID-19 pandemic. BMJ Open 2023; 13:e069257. [PMID: 37019489 PMCID: PMC10083529 DOI: 10.1136/bmjopen-2022-069257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
OBJECTIVES We sought to assess depression among healthcare workers (HCWs) in the context of COVID-19 in Lusaka Province, Zambia. DESIGN This cross-sectional study is nested within a larger study, the Person-Centred Public Health for HIV Treatment in Zambia (PCPH), a cluster-randomised trial to assess HIV care and outcomes. SETTING The research was conducted in 24 government-run health facilities from 11 August to 15 October 2020 during the first wave of the COVID-19 pandemic in Lusaka, Zambia. PARTICIPANTS We used convenience sampling to recruit HCW participants who were previously enrolled in the PCPH study, had more than 6 months' experience working at the facility and were voluntarily willing to participate. PRIMARY OUTCOME MEASURES We implemented the well-validated 9-question Patient Health Questionnaire (PHQ-9) to assess HCW depression. We used mixed-effects, adjusted Poisson regression to estimate the marginal probability of HCWs experiencing depression that may warrant intervention (PHQ-9 score ≥5) by healthcare facility. RESULTS We collected PHQ-9 survey responses from 713 professional and lay HCWs. Overall, 334 (46.8%, 95% CI 43.1%, 50.6%) HCWs recorded a PHQ-9 score ≥5, indicating the need for further assessment and potential intervention for depression. We identified significant heterogeneity across facilities and observed a greater proportion of HCWs with symptoms of depression in facilities providing COVID-19 testing and treatment services. CONCLUSIONS Depression may be a concern for a large proportion of HCWs in Zambia. Further work to understand the magnitude and aetiologies of depression among HCWs in the public sector is needed to design effective prevention and treatment interventions to meet the needs for mental health support and to minimise poor health outcomes.
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Affiliation(s)
- Sandra Simbeza
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Jacob Mutale
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Musunge Mulabe
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Lazarus Jere
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Chama Bukankala
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Kombatende Sikombe
- Implementation Science Unit, Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Izukanji Sikazwe
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Carolyn Bolton-Moore
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
- Division of Infectious Diseases, The University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Aaloke Mody
- Division of Infectious Diseases, Washington University in St Louis, St Louis, Missouri, USA
| | - Elvin H Geng
- Division of Infectious Diseases, Washington University in St Louis, St Louis, Missouri, USA
| | - Anjali Sharma
- Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Laura K Beres
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jake M Pry
- Implementation Science Unit, Research Department, Center for Infectious Disease Research in Zambia, Lusaka, Zambia
- Public Health Sciences, University of California Davis School of Medicine, Sacramento, California, USA
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Maeri I, Eyul P, Getahun M, Hatchett K, Owino L, Akatukwasa C, Itiakorit H, Gutin SA, Johnson-Peretz J, Ssali S, Cohen CR, Bukusi EA, Kamya MR, Charlebois ED, Camlin CS. Nothing about us without us: Community-based participatory research to improve HIV care for mobile patients in Kenya and Uganda. Soc Sci Med 2023; 318:115471. [PMID: 36628879 PMCID: PMC10184576 DOI: 10.1016/j.socscimed.2022.115471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 09/11/2022] [Accepted: 10/20/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Population mobility is prevalent and complex in sub-Saharan Africa, and can disrupt HIV care and fuel onward transmission. While differentiated care models show promise for meeting the needs of mobile populations by addressing care cascade gaps, the voices of mobile populations need to be included when designing care delivery models. We assessed the unmet needs of mobile populations and engaged mobile stakeholders in the design and implementation of service delivery to improve care outcomes for mobile people living with HIV (PLHIV). METHODS CBPR was conducted in 12 rural communities in Kenya and Uganda participating in a mobility study within the Sustainable East Africa Research in Community Health (SEARCH) test-and-treat trial (NCT# 01864603) from 2016 to 2019. Annual gender-balanced meetings with between 17 and 33 mobile community stakeholders per meeting were conducted in local languages to gather information on mobility and its influence on HIV-related outcomes. Discussions were audio-recorded, transcribed and translated into English. Findings were shared at subsequent meetings to engage mobile stakeholders in interpretation. At year three, intervention ideas to address mobile populations' needs were elicited. After refinement, these intervention options were presented to the same communities for prioritization the following year, using a participatory ranking approach. RESULTS Transit hubs, trading centers, and beach sites were identified as desirable service locations. Communities prioritized mobile health 'cards' with electronic medical records and peer-delivered home-based services. Mobile health clinics, longer antiretroviral refills, and 24/7 (after service) were less desirable options. Care challenges included: lack of transfer letters to other clinics; inability to adhere to scheduled appointments, medication regimens, and monitoring of treatment outcomes while mobile amongst others. CONCLUSIONS Iterative discussions with mobile community stakeholders elicited communities' health priorities and identified challenges to achieving HIV care cascade outcomes. Understanding the mobility patterns and unique needs of mobile populations through responsive community engagement is critical.
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Affiliation(s)
- Irene Maeri
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya.
| | - Patrick Eyul
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Monica Getahun
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, San Francisco, USA
| | - Khalela Hatchett
- Department of Community Health Sciences, University of California Los Angeles, Los Angeles, USA
| | - Lawrence Owino
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | | | | | - Sarah A Gutin
- Department of Medicine, Center for AIDS Prevention Studies, University of California San Francisco, San Francisco, USA
| | - Jason Johnson-Peretz
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, San Francisco, USA
| | - Sarah Ssali
- School of Women and Gender Studies, Makerere University, Kampala, Uganda
| | - Craig R Cohen
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, San Francisco, USA
| | - Elizabeth A Bukusi
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Moses R Kamya
- Infectious Diseases Research Collaboration, Kampala, Uganda; School of Medicine, Makerere University, Kampala, Uganda
| | - Edwin D Charlebois
- Department of Medicine, Center for AIDS Prevention Studies, University of California San Francisco, San Francisco, USA
| | - Carol S Camlin
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, San Francisco, USA; Department of Medicine, Center for AIDS Prevention Studies, University of California San Francisco, San Francisco, USA
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Odayar J, Chi BH, Phillips TK, Mukonda E, Hsiao NY, Lesosky M, Myer L. Transfer of Patients on Antiretroviral Therapy Attending Primary Health Care Services in South Africa. J Acquir Immune Defic Syndr 2022; 90:309-315. [PMID: 35298449 DOI: 10.1097/qai.0000000000002950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/22/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Patients stable on antiretroviral therapy (ART) may require transfer between health care facilities to maintain continuous care, yet data on the frequency, predictors, and virologic outcomes of transfers are limited. METHODS Data for all viral load (VL) testing at public sector health facilities in the Western Cape Province (2011-2018) were obtained. Participant inclusion criteria were a first VL between 2011 and 2013, age >15 years at ART initiation, and >1 VL within 5 years of ART initiation, of which ≥1 was at a primary health care facility. Two successive VLs taken at different facilities indicated a transfer. We assessed predictors of transfer using generalized estimating equations with Poisson regression and the association between transfer and subsequent VL> 1000 copies/mL using generalized mixed effects. RESULTS Overall 84,814 participants (median age at ART initiation 34 years and 68% female) were followed up for up to 4.5 years after their first VL: 34% (n = 29,056) transferred at least once, and among these, 26% transferred twice and 11% transferred thrice or more. Female sex, age <30 years, and first VL > 1000 copies/mL were independently associated with an increased rate of transfer [adjusted rate ratio 1.24, 95% confidence interval (CI): 1.21 to 1.26; 1.34, 95% CI: 1.31 to 1.36; and 1.42, 95% CI: 1.38 to 1.45, respectively]. Adjusting for age, sex, and disengagement, transfer was associated with an increased relative odds of VL > 1000 copies/mL (odds ratio 1.35, 95% CI: 1.29 to 1.42). CONCLUSIONS Approximately one-third of participants transferred and virologic outcomes were poor post-transfer. Stable patients who transfer may require additional support to maintain adherence.
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Affiliation(s)
- Jasantha Odayar
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Benjamin H Chi
- Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC; and
| | - Tamsin K Phillips
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Elton Mukonda
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Nei-Yuan Hsiao
- Division of Medical Virology, National Health Laboratory Service, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | - Maia Lesosky
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Landon Myer
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
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8
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Espinosa Dice AL, Bengtson AM, Mwenda KM, Colvin CJ, Lurie MN. Quantifying clinic transfers among people living with HIV in the Western Cape, South Africa: a retrospective spatial analysis. BMJ Open 2021; 11:e055712. [PMID: 34857581 PMCID: PMC8640660 DOI: 10.1136/bmjopen-2021-055712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/03/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES For persons living with HIV (PLWH) in long-term care, clinic transfers are common and influence sustained engagement in HIV care, as they are associated with significant time out-of-care, low CD4 count, and unsuppressed viral load on re-entry. Despite the geospatial nature of clinic transfers, there exist limited data on the geospatial trends of clinic transfers to guide intervention development. In this study, we investigate the geospatial characteristics and trends of clinic transfers among PLWH on antiretroviral therapy (ART) in the Western Cape Province of South Africa. DESIGN Retrospective spatial analysis. SETTING PLWH who initiated ART treatment between 2012 and 2016 in South Africa's Western Cape Province were followed from ART initiation to their last visit prior to 2017. Deidentified electronic medical records from all public clinical, pharmacy, and laboratory visits in the Western Cape were linked across space and time using a unique patient identifier number. PARTICIPANTS 4176 ART initiators in South Africa (68% women). METHODS We defined a clinic transfer as any switch between health facilities that occurred on different days and measured the distance between facilities using geodesic distance. We constructed network flow maps to evaluate geospatial trends in clinic transfers over time, both for individuals' first transfer and overall. RESULTS Two-thirds of ART initiators transferred health facilities at least once during follow-up. Median distance between all clinic transfer origins and destinations among participants was 8.6 km. Participant transfers were heavily clustered around Cape Town. There was a positive association between time on ART and clinic transfer distance, both among participants' first transfers and overall. CONCLUSION This study is among the first to examine geospatial trends in clinic transfers over time among PLWH. Our results make clear that clinic transfers are common and can cluster in urban areas, necessitating better integrated health information systems and HIV care.
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Affiliation(s)
- Ana Lucia Espinosa Dice
- Department of Biostatistics, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Angela M Bengtson
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Kevin M Mwenda
- Spatial Structures in the Social Sciences (S4), Population Studies and Training Center (PSTC), Brown University, Providence, Rhode Island, USA
| | - Christopher J Colvin
- Division of Social and Behavioural Sciences, School of Public Health and Family Medicine, University of Cape Town, Observatory, Western Cape, South Africa
- Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - Mark N Lurie
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
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Effects of implementing universal and rapid HIV treatment on initiation of antiretroviral therapy and retention in care in Zambia: a natural experiment using regression discontinuity. Lancet HIV 2021; 8:e755-e765. [PMID: 34656208 DOI: 10.1016/s2352-3018(21)00186-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND Universal testing and treatment (UTT) for all people living with HIV has only been assessed under experimental conditions in cluster-randomised trials. The public health effectiveness of UTT policies on the HIV care cascade under real-world conditions is not known. We assessed the real-world effectiveness of universal HIV treatment policies that were implemented in Zambia on Jan 1, 2017. METHODS We used data from Zambia's routine electronic health record system to analyse antiretroviral therapy (ART)-naive adults who newly enrolled in HIV care up to 1 year before and after the implementation of universal treatment (ie, Jan 1, 2016, to Jan 1, 2018) at 117 clinics supported by the Centre for Infectious Disease Research in Zambia. We used a regression discontinuity design to estimate the effects of implementing UTT on same-day ART initiation, ART initiation within 1 month, and retention on ART at 12 months (defined as clinic attendance 9-15 months after enrolment and at least 6 months on ART), under the assumption that patients presenting immediately before and after UTT implementation were balanced on both measured and unmeasured characteristics. We did an instrumental variable analysis to estimate the effect of same-day ART initiation under routine conditions on 12-month retention on ART. FINDINGS 65 673 newly enrolled patients with HIV (40 858 [62·2%] female, median age 32 years [IQR 26-39], median CD4 count 287 cells per μL [IQR 147-466]) were eligible for inclusion in the analyses; 31 145 enrolled before implementation of UTT, and 34 528 enrolled after UTT. Implementation of universal treatment increased same-day ART initiation from 41·7% to 74·8% (risk difference [RD] 33·1%, 95% CI 30·5-35·7), ART initiation by 1 month from 69·6% to 87·0% (RD 17·4%, 15·5-19·3), and 12-month retention on ART from 56·2% to 63·3% (RD 7·1%, 4·3-9·9). ART initiation rates became more uniform across patient subgroups after implementation of universal treatment, but heterogeneity in 12-month retention on ART between subgroups was unchanged. Instrumental variable analyses indicated that same-day ART initiation in routine settings led to a 15·8% increase (95% CI 12·1-19·5) in 12-month retention on ART. INTERPRETATION UTT policies implemented in Zambia increased the rapidity and uptake of ART, as well as retention on ART at 12 months, although overall retention on ART remained suboptimal. UTT policies reduced disparities in treatment initiation, but not 12-month retention on ART. Natural experiments reveal both the anticipated and unanticipated effects of real-world implementation and indicate the need for new strategies leveraging the short-term effects of UTT to cultivate long-term treatment success. FUNDING National Institutes of Health.
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Mody A, Tram KH, Glidden DV, Eshun-Wilson I, Sikombe K, Mehrotra M, Pry JM, Geng EH. Novel Longitudinal Methods for Assessing Retention in Care: a Synthetic Review. Curr HIV/AIDS Rep 2021; 18:299-308. [PMID: 33948789 DOI: 10.1007/s11904-021-00561-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2021] [Indexed: 01/22/2023]
Abstract
PURPOSE OF REVIEW Retention in care is both dynamic and longitudinal in nature, but current approaches to retention often reduce these complex histories into cross-sectional metrics that obscure the nuanced experiences of patients receiving HIV care. In this review, we discuss contemporary approaches to assessing retention in care that captures its dynamic nature and the methodological and data considerations to do so. RECENT FINDINGS Enhancing retention measurements either through patient tracing or "big data" approaches (including probabilistic matching) to link databases from different sources can be used to assess longitudinal retention from the perspective of the patient when they transition in and out of care and access care at different facilities. Novel longitudinal analytic approaches such as multi-state and group-based trajectory analyses are designed specifically for assessing metrics that can change over time such as retention in care. Multi-state analyses capture the transitions individuals make in between different retention states over time and provide a comprehensive depiction of longitudinal population-level outcomes. Group-based trajectory analyses can identify patient subgroups that follow distinctive retention trajectories over time and highlight the heterogeneity of retention patterns across the population. Emerging approaches to longitudinally measure retention in care provide nuanced assessments that reveal unique insights into different care gaps at different time points over an individuals' treatment. These methods help meet the needs of the current scientific agenda for retention and reveal important opportunities for developing more tailored interventions that target the varied care challenges patients may face over the course of lifelong treatment.
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Affiliation(s)
- Aaloke Mody
- Division of Infectious Diseases, Washington University School of Medicine, Campus Box 8051, 4523 Clayton Avenue, St. Louis, Missouri, 63110, USA.
| | - Khai Hoan Tram
- Division of Infectious Diseases, Washington University School of Medicine, Campus Box 8051, 4523 Clayton Avenue, St. Louis, Missouri, 63110, USA
| | - David V Glidden
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Ingrid Eshun-Wilson
- Division of Infectious Diseases, Washington University School of Medicine, Campus Box 8051, 4523 Clayton Avenue, St. Louis, Missouri, 63110, USA
| | - Kombatende Sikombe
- Centre for Infectious Diseases Research in Zambia, Lusaka, Zambia
- Department of Public Health Environments and Society, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Megha Mehrotra
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Jake M Pry
- Division of Infectious Diseases, Washington University School of Medicine, Campus Box 8051, 4523 Clayton Avenue, St. Louis, Missouri, 63110, USA
- Centre for Infectious Diseases Research in Zambia, Lusaka, Zambia
| | - Elvin H Geng
- Division of Infectious Diseases, Washington University School of Medicine, Campus Box 8051, 4523 Clayton Avenue, St. Louis, Missouri, 63110, USA
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Ehrenkranz P, Rosen S, Boulle A, Eaton JW, Ford N, Fox MP, Grimsrud A, Rice BD, Sikazwe I, Holmes CB. The revolving door of HIV care: Revising the service delivery cascade to achieve the UNAIDS 95-95-95 goals. PLoS Med 2021; 18:e1003651. [PMID: 34029346 PMCID: PMC8186775 DOI: 10.1371/journal.pmed.1003651] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 06/08/2021] [Indexed: 01/01/2023] Open
Abstract
Peter Ehrenkranz and co-authors present a cyclical cascade of care for people with HIV infection, aiming to facilitate assessment of outcomes.
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Affiliation(s)
- Peter Ehrenkranz
- Global Health, Bill & Melinda Gates Foundation, Seattle, WA, United States of America
- * E-mail:
| | - Sydney Rosen
- Department of Global Health, Boston University School of Public Health, Boston, MA, United States of America
- Health Economics and Epidemiology Research Office, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Andrew Boulle
- School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Jeffrey W. Eaton
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, United Kingdom
| | - Nathan Ford
- HIV & Global Hepatitis Programme, World Health Organization, Geneva, Switzerland
- Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Matthew P. Fox
- Department of Global Health, Boston University School of Public Health, Boston, MA, United States of America
- Health Economics and Epidemiology Research Office, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States of America
| | - Anna Grimsrud
- HIV Programmes & Advocacy Department, International AIDS Society, Cape Town, South Africa
| | - Brian D. Rice
- Department of Public Health, Environments and Society, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Izukanji Sikazwe
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Charles B. Holmes
- Center for Innovation in Global Health, Georgetown University, Washington, DC, United States of America
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