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Hampanda K, Grubbs H, Castillo-Mancilla J, Anderson PL, Thorne J, Helova A, Turan JM, Onono M, Abuogi LL. Antiretroviral therapy adherence among peripartum women with HIV in Kenya: an explanatory mixed methods study using dry blood spot measures and narrative interviews. AIDS Care 2024:1-12. [PMID: 39106970 DOI: 10.1080/09540121.2024.2383885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 07/18/2024] [Indexed: 08/09/2024]
Abstract
ABSTRACTAdherence to antiretroviral therapy (ART) remains sub-optimal among pregnant and postpartum women with HIV (PPWH) in high HIV prevalence low resource settings with few effective behavioral interventions. A large body of qualitative literature has established general barriers and facilitators to ART adherence in PPWH at various levels (individual, interpersonal, structural). However, research exploring the underlying behavioral mechanisms of ART adherence in PPWH with objectively verified adherence biomarkers is extremely limited. We conducted 24 in-depth interviews with postpartum women in western Kenya who had linked ART drug concentrations obtained from three dried blood spot samples across the peripartum period. Among PPWH with a low drug concentration (n = 13) compared to those with continuously high drug concentrations (n = 11), distinct themes emerged related to HIV status disclosure, social support, interactions with the health system, and health beliefs. By combining ART biomarkers with patient reported challenges, there is the potential for real-time interventions to support sustained ART adherence among PPWH and improve maternal and infant health outcomes.
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Affiliation(s)
- K Hampanda
- Department of Obstetrics and Gynecology, University of Colorado, Aurora, CO, USA
- Center for Global Health, University of Colorado, Aurora, CO, USA
| | - H Grubbs
- Department of Surgery, University of Oklahoma, Oklahoma City, OK, USA
| | - J Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - P L Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - J Thorne
- Department of Obstetrics and Gynecology, University of Colorado, Aurora, CO, USA
- Center for Global Health, University of Colorado, Aurora, CO, USA
| | - A Helova
- Department of Health Policy and Organization, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
- Sparkman Center for Global Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - J M Turan
- Department of Health Policy and Organization, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
- Sparkman Center for Global Health, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Public Health, School of Medicine, Koc University, Istanbul, Turkey
| | - M Onono
- Centre for Microbiology Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - L L Abuogi
- Center for Global Health, University of Colorado, Aurora, CO, USA
- Department of Pediatrics, University of Colorado, Aurora, CO, USA
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Kalichman SC, Banas E, Shkembi B, Kalichman M, Mathews C. The three-item patient-reported instrument for retrospective adherence in resource constrained settings: reliability, validity and potential utility. J Behav Med 2024; 47:135-143. [PMID: 37524887 DOI: 10.1007/s10865-023-00438-2] [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: 03/28/2023] [Accepted: 07/17/2023] [Indexed: 08/02/2023]
Abstract
INTRODUCTION Patient-report instruments remain the most feasible and sustainable approaches for monitoring medication adherence in clinical settings. However, questions of their reliability and validity persist. Studies suggest that the 3-item instrument for retrospective adherence (IRA) developed by Wilson et al. offers a viable option for clinically monitoring medication adherence. Here we report the reliability and validity of the IRA among patients recruited from community-based HIV clinics and antiretroviral therapy (ART) dispensaries in a resource constrained township in Cape Town, South Africa. METHODS Women (n = 794) and men (n = 228) receiving ART completed the IRA at three time points: (a) in a face-to-face administration at enrollment (b) in1-week phone interview and (c) 1-month phone interview. Participants also provided contemporaneous blood samples for HIV viral load testing as a clinical outcome and unannounced phone-based pill counts as an objective assessment of ART adherence. RESULTS The IRA was internally consistent and showed evidence of time stability. The IRA also demonstrated validity with respect to pill count adherence, correlates of adherence, and HIV viral load. Response operating curve analysis yielded an area under the curve of 0.646, using 75% adherence as the cut-off, with 0.637 sensitivity and 0.567 specificity. CONCLUSIONS The IRA demonstrated reliability, construct validity and criterion validity in a resource constrained setting, supporting use of the IRA in research and clinical care.
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Affiliation(s)
- Seth C Kalichman
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, 406 Babbidge Road, Storrs, CT, 06269, USA.
| | - Ellen Banas
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, 406 Babbidge Road, Storrs, CT, 06269, USA
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Bruno Shkembi
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, 406 Babbidge Road, Storrs, CT, 06269, USA
| | - Moira Kalichman
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, 406 Babbidge Road, Storrs, CT, 06269, USA
| | - Catherine Mathews
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
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Pellowski JA, Jensen D, Tsawe N, Colvin C, Cu-Uvin S, Operario D, Lurie M, Harrison A, Myer L, Knight L. Womandla Health: development and rationale of a behavioral intervention to support HIV treatment adherence among postpartum women in South Africa. BMC Womens Health 2023; 23:649. [PMID: 38057777 PMCID: PMC10701937 DOI: 10.1186/s12905-023-02817-y] [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: 07/05/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND While Option B + has made great strides in eliminating vertical transmission of HIV and improving access to lifelong antiretroviral therapy (ART) for women, the postpartum period remains a risk period for disengagement from HIV care and non-adherence. METHODS Longitudinal qualitative data was collected from 30 women living with HIV in Cape Town, South Africa from pregnancy through 1 year postpartum to examine key barriers and facilitators to HIV treatment adherence across this transition. Participants were also asked about their preferences for behavioral intervention content, format, and scope. The intervention development process was guided by Fernandez et al.'s Intervention Mapping process and was informed by the qualitative data, the wider literature on ART adherence, and Transition Theory. RESULTS The Womandla Health Intervention is a multicomponent intervention consisting of four individual sessions with a lay health worker and four peer group sessions, which span late pregnancy and early postpartum. These sessions are guided by Transition Theory and utilize motivational interviewing techniques to empower women to ascertain their own individual barriers to HIV care and identify solutions and strategies to overcome these barriers. CONCLUSIONS This intervention will be tested in a small scale RCT. If successful, findings will provide an innovative approach to HIV treatment by capitalizing on the transition into motherhood to bolster self-care behaviors, focusing on ART adherence and also women's overall postpartum health and psychosocial needs.
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Affiliation(s)
- Jennifer A Pellowski
- School of Public Health, Brown University, Providence, USA.
- School of Public Health, University of Cape Town, Cape Town, South Africa.
| | - Destry Jensen
- School of Public Health, Brown University, Providence, USA
| | - Nokwazi Tsawe
- School of Public Health, University of Cape Town, Cape Town, South Africa
| | - Christopher Colvin
- School of Public Health, University of Cape Town, Cape Town, South Africa
- School of Medicine, University of Virginia, Charlottesville, USA
| | - Susan Cu-Uvin
- The Warren Alpert Medical School of Brown University, Providence,, USA
| | - Don Operario
- Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Mark Lurie
- School of Public Health, Brown University, Providence, USA
- School of Public Health, University of Cape Town, Cape Town, South Africa
| | | | - Landon Myer
- School of Public Health, University of Cape Town, Cape Town, South Africa
| | - Lucia Knight
- School of Public Health, University of Cape Town, Cape Town, South Africa
- School of Public Health, University of the Western Cape, Cape Town, South Africa
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