Browsing by Person "Kielmann, Karina"

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A cluster randomised trial to evaluate the effect of optimising TB/HIV integration on patient level outcomes: The merge- trial protocol
(Elsevier, 2014-10) Kufa, T.; Hippner, P.; Charalambous, S.; Kielmann, Karina; Vassall, A.; Churchyard, G.; Grant, Alison D.; Fielding, K.
Introduction We describe the design of the MERGE trial, a cluster randomised trial, to evaluate the effect of an intervention to optimise TB/HIV service integration on mortality, morbidity and retention in care among newly-diagnosed HIV-positive patients and newly-diagnosed TB patients. Design Eighteen primary care clinics were randomised to either intervention or standard of care arms. The intervention comprised activities designed to optimise TB and HIV service integration and supported by two new staff cadres-a TB/HIV integration officer and a TB screening officer-for 24 months. A process evaluation to understand how the intervention was perceived and implemented at the clinics was conducted as part of the trial. Newly-diagnosed HIV-positive patients and newly-diagnosed TB patients were enrolled into the study and followed up through telephonic interviews and case note abstractions at six monthly intervals for up to 18 months in order to measure outcomes. The primary outcomes were incidence of hospitalisations or death among newly diagnosed TB patients, incidence of hospitalisation or death among newly diagnosed HIV-positive patients and retention in care among HIV-positive TB patients. Secondary outcomes of the study included measures of cost-effectiveness. Discussion Methodological challenges of the trial such as implementation of a complex multi-faceted health systems intervention, the measurement of integration at baseline and at the end of the study and an evolving standard of care with respect to TB and HIV are discussed. The trial will contribute to understanding whether TB/HIV service integration affects patient outcomes.
All non-adherence is equal, but is some more equal than others? TB in the digital era
(European Respiratory Society, 2020-11-02) Stagg, Helen R.; Flook, Mary; Martinecz, Antal; Kielmann, Karina; Abel Zur Wiesch, Pia; Karat, Aaron S.; Lipman, Marc; Sloan, Derek J.; Walker, Elizabeth F.; Fielding, Katherine L.
Adherence to treatment for tuberculosis (TB) has been a concern for many decades, resulting in the World Health Organization’s recommendation of the direct observation of treatment in the 1990s. Recent advances in digital adherence technologies (DATs) have renewed discussion on how to best address non-adherence, as well as offering important information on dose-by-dose adherence patterns and their variability between countries and settings. Previous studies have largely focussed on percentage thresholds to delineate sufficient adherence, but this is misleading and limited, given the complex and dynamic nature of adherence over the treatment course. Instead, we apply a standardised taxonomy- as adopted by the international adherence community- to dose-by-dose medication-taking data, which divides missed doses into a) late/non-initiation (starting treatment later than expected/not starting), b) discontinuation (ending treatment early), and c) suboptimal implementation (intermittent missed doses). Using this taxonomy, we can consider the implications of different forms of non-adherence for intervention and regimen design. For example, can treatment regimens be adapted to increase the ‘forgiveness’ of common patterns of suboptimal implementation to protect against treatment failure and the development of drug resistance? Is it reasonable to treat all missed doses of treatment as equally problematic and equally common when deploying DATs? Can DAT data be used to indicate the patients that need enhanced levels of support during their treatment course? Critically, we pinpoint key areas where knowledge regarding treatment adherence is sparse and impeding scientific progress.
“An unnecessary cut?” multilevel health systems analysis of drivers of caesarean sections rates in Italy: A systematic review
(BioMed Central, 2020-12-10) Laurita Longo, Valentina; Odjidja, Emmanuel Nene; Beia, Thierry Kamba; Neri, Manuela; Kielmann, Karina; Gittardi, Irene; Di Rosa, Amanda Isabella; Boldrini, Michela; Melis, Gian Benedetto; Scambia, Giovanni; Lanzone, Antonio
Background: Improvements in medical technologies have seen over-medicalization of childbirth. Caesarean section (CS) is a lifesaving procedure proven effective in reducing maternal and perinatal mortality across the globe. However, as with any medical procedure, the CS intrinsically carries some risk to its beneficiaries. In recent years, CS rates have risen alarmingly in high-income countries. Many exceeding the World Health Organisation (WHO) recommendation of a 10 to 15% annual CS rate. While this situation poses an increased risk to women and their children, it also represents an excess human and financial burden on health systems. Therefore, from a health system perspective this study systematically summarizes existing evidence relevant to the factors driving the phenomenon of increasing CS rates using Italy as a case study. Methods: Employing the WHO Health System Framework (WHOHSF), this systematic review used the PRISMA guidelines to report findings. PubMed, SCOPUS, MEDLINE, Cochrane Library and Google Scholar databases were searched up until April 1, 2020. Findings were organised through the six dimensions of the WHOHSF framework: service delivery, health workforce, health system information; medical products vaccine and technologies, financing; and leadership and governance. Results: CS rates in Italy are affected by complex interactions among several stakeholder groups and contextual factors such as the hyper-medicalisation of delivery, differences in policy and practice across units and the national context, issues pertaining to the legal and social environment, and women’s attitudes towards pregnancy and childbirth. Conclusion: Mitigating the high rates of CS will require a synergistic multi-stakeholder intervention. Specifically, with processes able to attract the official endorsement of policy makers, encourage concensus between regional authorities and local governments and guide the systematic compliance of delivery units with its clinical guidelines.
Balancing authority, deference and trust across the public-private divide in health care: Tuberculosis health visitors in western Maharashtra, India
(2014-08) Kielmann, Karina; Datye, Vinita; Pradhan, Anagha; Rangan, Sheela
While concepts such as 'partnership' are central to the terminology of private-public mix (PPM), little attention has been paid to how social relations are negotiated among the diverse actors responsible for implementing these inter-sectoral arrangements. India's Revised National Tuberculosis Control Programme (RNTCP) has used intermediary agents to facilitate the involvement of private providers in the expansion of Directly Observed Therapy, Short-Course (DOTS). We examine the roles of tuberculosis health visitors (TB HVs) in mediating working relationships among private providers, programme staff and patients that underpin a PPM-DOTS launched by the RNTCP in western Maharashtra. In addition to observations and informal interactions with the programme and participating health providers, researchers conducted in-depth interviews with senior programme officers and eight TB HVs. Framed by a political discourse of clinical governance, working relationships within the PPM are structured by the pluralistic context, social and professional hierarchies and paternalism of health care in India. TB HVs are at the nexus of these relationships, yet remain undervalued partly because accountability is measured through technical rather than social outcomes of the 'partnership'. Close attention to the dynamics of power relations in working practices within the health system can improve accountability and sustainability of partnerships. 2014 2014 The Author(s). Published by Taylor & Francis.
Beyond checklists: Using clinic ethnography to assess the enabling environment for tuberculosis infection prevention control in South Africa
(Public Library of Science, 2022-11-09) Arakelyan, Stella; MacGregor, Hayley; Voce, Anna S.; Seeley, Janet; Grant, Alison D.; Kielmann, Karina
Sub-optimal implementation of infection prevention and control (IPC) measures for airborne infections is associated with a rise in healthcare-acquired infections. Research examining contributing factors has tended to focus on poor infrastructure or lack of health care worker compliance with recommended guidelines, with limited consideration of the working environments within which IPC measures are implemented. Our analysis of compromised tuberculosis (TB)-related IPC in South Africa used clinic ethnography to elucidate the enabling environment for TB-IPC strategies. Using an ethnographic approach, we conducted observations, semi-structured interviews, and informal conversations with healthcare staff in six primary health clinics in KwaZulu-Natal, South Africa between November 2018 and April 2019. Qualitative data and fieldnotes were analysed deductively following a framework that examined the intersections between health systems ‘hardware’ and ‘software’ issues affecting the implementation of TB-IPC. Clinic managers and front-line staff negotiate and adapt TB-IPC practices within infrastructural, resource and organisational constraints. Staff were ambivalent about the usefulness of managerial oversight measures including IPC protocols, IPC committees and IPC champions. Challenges in implementing administrative measures including triaging and screening were related to the inefficient organisation of patient flow and information, as well as inconsistent policy directives. Integration of environmental controls was hindered by limitations in the material infrastructure and behavioural norms. Personal protective measures, though available, were not consistently applied due to limited perceived risk and the lack of a collective ethos around health worker and patient safety. In one clinic, positive organisational culture enhanced staff morale and adherence to IPC measures. ‘Hardware’ and ‘software’ constraints interact to impact negatively on the capacity of primary care staff to implement TB-IPC measures. Clinic ethnography allowed for multiple entry points to the ‘problematic’ of compromised TB-IPC, highlighting the importance of capturing dimensions of the ‘enabling environment’, currently not assessed in binary checklists.
Building social equity and person-centred innovation into the end TB response [Letter to the editor]
(International Union Against Tuberculosis and Lung Disease, 2024-11-01) Engel, N.; Apolosi, I.; Bhargava, A.; Bhan, A.; Celan, C.; Mak, A.; Chikovore, J.; Chorna, Y.; Claassens, M.M.; Dagron, S.; Denholm, J.T.; Frick, M.; Furin, J.; Hoddinott, G.; Kashnitsky, D.; Kielmann, Karina; Kunor, T.; Lin, D.; McDowell, A.; Mitchell, E.M.; Oga-Omenka, C.; Samina, P.; Shikoli, S.A.; Silva, D.S.; Stein, R.; Stillo, J.; van der Westhuizen, H.M.; Wingfield, T.; Zwerling, A.; Daftary, A.
Reducing systemic inequities in testing, access to care, social protection – and in the scientific process – is essential to end TB. Incorporating social science methods and expertise on inequity into the mainstream TB response would help ensure that political commitments to equity move beyond symbolic gestures. We convened a meeting between TB social scientists, people with lived experience, civil society and community members to discuss equity within the global TB response. Here, we propose five means by which a social science lens can strengthen equitable, person-centred responses and reconcile the public health significance of TB with the principles of social justice.
Cases- and Narratives- in Private Medical Providers' Accounts of Managing HIV in Urban India
(McGill-Queen's University Press, 2013-11) Kielmann, Karina; Adelson, N.; Butt, L.; Kielmann, Karina
While medical pluralism in India has been of longstanding interest to medical anthropologists (see Leslie, 1976; Leslie and Young, 1992), it is only more recently that pluralism, under the guise of privatization in Indian health care, has attracted comparable interest among public health specialists. Accompanying nationwide economic reforms toward a market-based economy (Purohit 2001; Sen 2003), 25634_Adelson.indb 145 13-07-12 2:11 PM 146 Karina Kielmann India's private medical sector rapidly expanded throughout the 1990s, encompassing a wide range of formal and informal medical providers with varying degrees of institutional legitimacy. Operating alongside the government health services, private medical practitioners represent the first pattern of resort for a majority of the Indian population, regardless of income (Sengupta and Nundy 2005). These practitioners, many of whom are trained in Indian systems of medicine and homeopathy (ISM&H),2 frequently combine both allopathic and nonallopathic prescriptions and treatment regimens.
Changing men or changing health systems? A scoping review of interventions, services and programmes targeting men’s health in sub-Saharan Africa
(BMC, 2021-03-31) Beia, Thierry; Kielmann, Karina; Diaconu, Karin
Background: Sex and gender have been shown to influence health literacy, health seeking behaviour, and health outcomes. However, research examining the links between gender and health has mainly focused on women’s health, which is a long-standing global health priority. We examine literature focused on the ‘missing men’ in global health research, in particular empirical studies that document interventions, programmes, and services targeting men’s health issues in Sub-Saharan Africa. Within these studies, we identify dominant conceptualisations of men and men’s health and how these have influenced the design of men’s health interventions and services. Methods: This is a scoping review of published and grey literature. Following comprehensive searches, we included 56 studies in the review. We conducted a bibliographic analysis of all studies and used inductive methods to analyse textual excerpts referring to conceptualizations of men and service design. An existing framework to categorise services, interventions, or programs according to their gender-responsiveness was adapted and used for the latter analysis. Results: From the included studies, we distinguished four principal ways in which men were conceptualized in programs and interventions: men are variously depicted as ‘gatekeepers’; ‘masculine’ men, ‘marginal’ men and as ‘clients. Additionally, we classified the gender-responsiveness of interventions, services or programmes described in the studies within the following categories: gender-neutral, −partnering, −sensitive and -transformative. Interventions described are predominantly gender-neutral or gender-partnering, with limited data available on transformative interventions. Health systems design features – focused mainly on achieving women’s access to, and uptake of services – may contribute to the latter gap leading to poor access and engagement of men with health services. Conclusion: This review highlights the need for transformation in sub-Saharan African health systems towards greater consideration of men’s health issues and health-seeking patterns.
Commentary: Time to change the way we think about tuberculosis infection prevention and control in health facilities: insights from recent research
(Cambridge University Press, 2023-07-17) Yates, Tom A.; Karat, Aaron S.; Bozzani, Fiammetta; McCreesh, Nicky; MacGregor, Hayley; Beckwith, Peter G.; Govender, Indira; Colvin, Christopher J.; Kielmann, Karina; Grant, Alison D.
In clinical settings where airborne pathogens, such as Mycobacterium tuberculosis, are prevalent, they constitute an important threat to health workers and people accessing healthcare. We report key insights from a 3-year project conducted in primary healthcare clinics in South Africa, alongside other recent tuberculosis infection prevention and control (TB-IPC) research. We discuss the fragmentation of TB-IPC policies and budgets; the characteristics of individuals attending clinics with prevalent pulmonary tuberculosis; clinic congestion and patient flow; clinic design and natural ventilation; and the facility-level determinants of the implementation (or not) of TB-IPC interventions. We present modeling studies that describe the contribution of M. tuberculosis transmission in clinics to the community tuberculosis burden and economic evaluations showing that TB-IPC interventions are highly cost-effective. We argue for a set of changes to TB-IPC, including better coordination of policymaking, clinic decongestion, changes to clinic design and building regulations, and budgeting for enablers to sustain implementation of TB-IPC interventions. Additional research is needed to find the most effective means of improving the implementation of TB-IPC interventions; to develop approaches to screening for prevalent pulmonary tuberculosis that do not rely on symptoms; and to identify groups of patients that can be seen in clinic less frequently.
Complexity and evidence in health sector decision-making: lessons from tuberculosis infection prevention in South Africa
(Oxford University Press (OUP), 2022-07-29) Perera, Shehani; Parkhurst, Justin; Diaconu, Karin; Bozzani, Fiammetta; Vassall, Anna; Grant, Alison; Kielmann, Karina
Abstract To better understand and plan health systems featuring multiple levels and complex causal elements, there have been increasing attempts to incorporate tools arising from complexity science to inform decisions. The utilization of new planning approaches can have important implications for the types of evidence that inform health policymaking and the mechanisms through which they do so. This paper presents an empirical analysis of the application of one such tool—system dynamics modelling (SDM)—within a tuberculosis control programme in South Africa in order to explore how SDM was utilized, and to reflect on the implications for evidence-informed health policymaking. We observed group model building workshops that served to develop the SDM process and undertook 19 qualitative interviews with policymakers and practitioners who partook in these workshops. We analysed the relationship between the SDM process and the use of evidence for policymaking through four conceptual perspectives: (1) a rationalist knowledge-translation view that considers how previously-generated research can be taken up into policy; (2) a programmatic approach that considers existing goals and tasks of decision-makers, and how evidence might address them; (3) a social constructivist lens exploring how the process of using an evidentiary planning tool like SDM can shape the understanding of problems and their solutions; and (4) a normative perspective that recognizes that stakeholders may have different priorities, and thus considers which groups are included and represented in the process. Each perspective can provide useful insights into the SDM process and the political nature of evidence use. In particular, SDM can provide technical information to solve problems, potentially leave out other concerns and influence how problems are conceptualized by formalizing the boundaries of the policy problem and delineating particular solution sets. Undertaking the process further involves choices on stakeholder inclusion affecting whose interests may be served as evidence to inform decisions.
Contextual constraints and dilemmas influencing health providers’ prescription practices in a conflict-affected area: Qualitative insights from Mopti, Mali
(Public Library of Science, 2025-10-16) Coulibaly, Issa; Diarra, Yacouba; Ahmed, Mohamed Ali Ag; Ravinetto, Raffaella; Doumbi, Seydou; Kielmann, Karina
Armed conflicts present complex, multidimensional challenges that severely compromise both access to and the quality of healthcare, including the adequate prescription of essential medicines. This study aimed to identify and understand the factors underlying the irrational prescribing of medicine in areas affected by armed conflict in the Mopti region in Mali. An exploratory qualitative study was conducted using a semi-structured interview guide to collect data from 30 participants, including health professionals from three health districts, representatives of the regional health directorate, members of community health associations, and staff from non-governmental organisations (NGOs) working in health sector. Interviews were recorded, transcribed, and subjected to thematic content analysis, using NVIVO 14 (2023 version) to support coding and data retrieval. Study participants reported a range of health system- and patient-related factors contributing to irrational prescribing practices in these conflict-affected areas. Health systems factors included: an imbalance between workload and the availability of qualified staff; limited access to professional training and training resources; poor adherence to prescription guidelines and procedures -often a consequence of contextual constraints; and coercion from armed terrorist groups. Administrative and political challenges were also highlighted, including weak monitoring and supervision mechanisms within the local health system; a lack of oversight by health and regulatory authorities in blockaded areas; the development of an informal pharmaceutical sector to compensate for deficiencies in the formal system; and overprescription of medicines linked to insurance schemes. Patient-related factors included delayed care-seeking linked to regional insecurity and contributing to increased morbidity and worsened health outcomes. Our results show that the multiple contextual factors influencing prescribing of medicines are deeply inter-linked. Efforts to improve the quality of prescribing in conflict zones must recognise that practices often deemed ‘irrational’ are shaped by complex contextual constraints. A coordinated and comprehensive approach involving all health systems stakeholders is required.
Cost-effectiveness of community-based practitioner programmes in Ethiopia, Indonesia and Kenya
(World Health Organization, 2015-08-03) McPake, Barbara; Edoka, Ijeoma P.; Witter, Sophie; Kielmann, Karina; Taegtmeyer, Miriam; Dieleman, Marjolein; Vaughan, Kelsey; Gama, Elvis; Kok, Maryse; Datiko, Daniel; Otiso, Lillian; Ahmed, Rukhsana; Squires, Neil; Suraratdecha, Chutima; Cometto, Giorgio
Objective To assess the cost-effectiveness of community-based practitioner programmes in Ethiopia, Indonesia and Kenya. Methods Incremental cost-effectiveness ratios for the three programmes were estimated from a government perspective. Cost data were collected for 2012. Life years gained were estimated based on coverage of reproductive, maternal, neonatal and child health services. For Ethiopia and Kenya, estimates of coverage before and after the implementation of the programme were obtained from empirical studies. For Indonesia, coverage of health service interventions was estimated from routine data. We used the Lives Saved Tool to estimate the number of lives saved from changes in reproductive, maternal, neonatal and child health-service coverage. Gross domestic product per capita was used as the reference willingness-to-pay threshold value. Findings The estimated incremental cost per life year gained was 82 international dollars ($)in Kenya, $999 in Ethiopia and $3396 in Indonesia. The results were most sensitive to uncertainty in the estimates of life-years gained. Based on the results of probabilistic sensitivity analysis, there was greater than 80% certainty that each programme was cost-effective. Conclusion Community-based approaches are likely to be cost-effective for delivery of some essential health interventions where community-based practitioners operate within an integrated team supported by the health system. Community-based practitioners may be most appropriate in rural poor communities that have limited access to more qualified health professionals. Further research is required to understand which programmatic design features are critical to effectiveness.
Cost-effectiveness of tuberculosis infection prevention and control interventions in South African clinics: a model-based economic evaluation informed by complexity science methods
(BMJ Publishing Group, 2023-02-15) Bozzani, Fiammetta Maria; McCreesh, Nicky; Diaconu, Karin; Govender, Indira; White, Richard G; Kielmann, Karina; Grant, Alison D; Vassall, Anna
Introduction: Nosocomial Mycobacterium tuberculosis (Mtb) transmission substantially impacts health workers, patients and communities. Guidelines for tuberculosis infection prevention and control (TB IPC) exist but implementation in many settings remains suboptimal. Evidence is needed on cost-effective investments to prevent Mtb transmission that are feasible in routine clinic environments. Methods: A set of TB IPC interventions was codesigned with local stakeholders using system dynamics modelling techniques that addressed both core activities and enabling actions to support implementation. An economic evaluation of these interventions was conducted at two clinics in KwaZulu-Natal, employing agent-based models of Mtb transmission within the clinics and in their catchment populations. Intervention costs included the costs of the enablers (eg, strengthened supervision, community sensitisation) identified by stakeholders to ensure uptake and adherence. Results: All intervention scenarios modelled, inclusive of the relevant enablers, cost less than US$200 per disability-adjusted life-year (DALY) averted and were very cost-effective in comparison to South Africa’s opportunity cost-based threshold (US$3200 per DALY averted). Two interventions, building modifications to improve ventilation and maximising use of the existing Central Chronic Medicines Dispensing and Distribution system to reduce the number of clinic attendees, were found to be cost saving over the 10-year model time horizon. Incremental cost-effectiveness ratios were sensitive to assumptions on baseline clinic ventilation rates, the prevalence of infectious TB in clinic attendees and future HIV incidence but remained highly cost-effective under all uncertainty analysis scenarios. Conclusion: TB IPC interventions in clinics, including the enabling actions to ensure their feasibility, afford very good value for money and should be prioritised for implementation within the South African health system.
Decentralising DR-TB care: the trade-off between quality of care and service coverage in the early phase of implementation
(International Union Against Tuberculosis and Lung Disease, 2025-09-03) Jassat, Waasila; Moshabela, Mosa; Nicol, Mark P.; Dickson, Laurie; Cox, Helen; Mlisana, Koleka; Black, John; Loveday, Marian; Grant, Alison D.; Kielmann, Karina; Schneider, Hans G.
A policy of decentralised care for drug-resistant TB (DR-TB) was introduced in South Africa in 2011. We describe a trade-off between increasing coverage of services and poor quality of care, in the early phase of policy implementation. This was a mixed methods case study, comparing implementation in KwaZulu-Natal and Western Cape provinces; with interviews and quantitative analysis of routine DR-TB programme data. We analysed qualitative data, thematically organizing findings into inputs, processes, and outputs to explore how decentralisation influenced quality of DR-TB care. Decentralisation of DR-TB care expanded access across provinces but there was wide variation in pace, planning and structural readiness. Where rapid scale-up outpaced capacity-building, weaknesses in resourcing, workforce, and clinical governance compromised quality of care. Two illustrative examples highlight that decentralisation to inadequately resourced sites resulted in morbidity to patients who did not receive effective monitoring for adverse events; and decentralising services to inadequately capacitated clinicians resulted in incorrect initiation in more complex cases and late referral of clinical complications. Attempts to decentralise DR-TB treatment in the context of complex treatment algorithms and limited health system capacity resulted in trade-offs of care quality. We argue that quality of care should be an essential consideration in early implementation of health programmes.
‘Deep down in their heart, they wish they could be given some incentives’: A qualitative study on the changing roles and relations of care among home-based caregivers in Zambia
(2015-01-28) Cataldo, Fabian; Kielmann, Karina; Kielmann, Tara; Mburu, Gitau; Musheke, Maurice
Background Across Sub-Saharan Africa, the roll-out of antiretroviral treatment (ART) has contributed to shifting HIV care towards the management of a chronic health condition. While the balance of professional and lay tasks in HIV caregiving has been significantly altered due to changing skills requirements and task-shifting initiatives, little attention has been given to the effects of these changes on health workers' motivation and existing care relations. Methods This paper draws on a cross-sectional, qualitative study that explored changes in home-based care (HBC) in the light of widespread ART rollout in the Lusaka and Kabwe districts of Zambia. Methods included observation of HBC daily activities, key informant interviews with programme staff from three local HBC organisations (n = 17) and ART clinic staff (n = 8), as well as in-depth interviews with home-based caregivers (n = 48) and HBC clients (n = 31). Results Since the roll-out of ART, home-based caregivers spend less time on hands-on physical care and support in the household, and are increasingly involved in specialised tasks supporting their clients' access and adherence to ART. Despite their pride in gaining technical care skills, caregivers lament their lack of formal recognition through training, remuneration or mobility within the health system. Care relations within homes have also been altered as caregivers' newly acquired functions of monitoring their clients while on ART are met with some ambivalence. Caregivers are under pressure to meet clients and their families' demands, although they are no longer able to provide material support formerly associated with donor funding for HBC. Conclusions As their responsibilities and working environments are rapidly evolving, caregivers' motivations are changing. It is essential to identify and address the growing tensions between an idealized rhetoric of altruistic volunteerism in home-based care, and the realities of lay worker deployment in HIV care interventions that not only shift tasks, but transform social and professional relations in ways that may profoundly influence caregivers' motivation and quality of care.
Determinants of non-adherence to anti-TB treatment in high income, low TB incidence settings: A scoping review
(The Union, 2021-06-01) Jones, Annie; Bidad, Natalie; Horne, Rob; Stagg, Helen R.; Wurie, Fatima; Kielmann, Karina; Karat, Aaron S.; Kunst, Heinke; Campbell, Colin N. J.; Darvell, Marcia; Clarke, Amy Louise; Lipman, Marc
Background Improving adherence to anti-tuberculosis (TB) treatment is a public health priority in high income, low incidence (HILI) regions. We conducted a scoping review to identify reported determinants of non-adherence in HILI settings.
Development and description of a theory-driven, evidence-based, complex intervention to improve adherence to treatment for tuberculosis in the UK: the IMPACT study
(Informa UK Limited, 2023-11-27) Jones, Annie S. K.; Horne, Rob; White, Jacqui; Costello, Trish; Darvell, Marcia; Karat, Aaron S.; Kielmann, Karina; Stagg, Helen R.; Hill, Adam T.; Kunst, Heinke; Campbell, Colin N. J.; Lipman, Marc C. I.
Background Tuberculosis (TB) has a significant treatment burden for patients, requiring at least six months of anti-TB treatment (ATT) with multiple medicines. Ensuring good adherence to ATT is central to global TB strategies, including those in high-income, low-TB incidence (HILI) settings. For adherence interventions to be successful and deliverable, they need to address the personal and environmental factors influencing patient and provider behaviour. Purpose This paper describes the application of theory and research evidence to inform the design process of the IMPACT manualised intervention to support ATT adherence for adults with TB disease in the United Kingdom (UK). It also provides a full description of the resulting intervention. Methods We synthesised findings from our formative research (qualitative and quantitative scoping reviews and patient and carer interviews) and supplemented these with clinic observations, a literature review, and healthcare provider interviews. Findings were mapped to the guiding theoretical framework (Perceptions and Practicalities Approach) which was operationalised to design the intervention components and content. An Intervention Development Group (IDG) of relevant stakeholders were consulted to adapt the intervention to local clinical settings. Results The pragmatic, deliverable components and content for the IMPACT intervention included: (1) an enhanced, structured, risk assessment to systematically identify risk factors for non-adherence plus locally-adapted guidance to mitigate these; and (2) patient educational materials (an animated video and interactive patient booklet) about TB and its treatment, to communicate the need for treatment and address common concerns. Conclusions Using a theory– and evidence– based approach incorporating stakeholder input, we have developed a multi-component, pragmatic, manualised intervention, which addresses patients’ personal barriers to adherence within local service resources to improve adherence to ATT within UK TB services.
Direct estimates of absolute ventilation and estimated Mycobacterium tuberculosis transmission risk in clinics in South Africa
(Public Library of Science, 2022-11-02) Beckwith, Peter G.; Karat, Aaron S.; Govender, Indira; Deol, Arminder K.; McCreesh, Nicky; Kielmann, Karina; Baisley, Kathy; Grant, Alison D.; Yates, Tom A.
Healthcare facilities are important sites for the transmission of pathogens spread via bioaerosols, such as Mycobacterium tuberculosis. Natural ventilation can play an important role in reducing this transmission. We aimed to measure rates of natural ventilation in clinics in KwaZulu-Natal and Western Cape provinces, South Africa, then use these measurements to estimate Mycobacterium tuberculosis transmission risk. We measured ventilation in clinic spaces using a tracer-gas release method. In spaces where this was not possible, we estimated ventilation using data on indoor and outdoor carbon dioxide levels. Ventilation was measured i) under usual conditions and ii) with all windows and doors fully open. Under various assumptions about infectiousness and duration of exposure, measured absolute ventilation rates were related to risk of Mycobacterium tuberculosis transmission using the Wells-Riley Equation. In 2019, we obtained ventilation measurements in 33 clinical spaces in 10 clinics: 13 consultation rooms, 16 waiting areas and 4 other clinical spaces. Under usual conditions, the absolute ventilation rate was much higher in waiting rooms (median 1769 m3/hr, range 338–4815 m3/hr) than in consultation rooms (median 197 m3/hr, range 0–1451 m3/hr). When compared with usual conditions, fully opening existing doors and windows resulted in a median two-fold increase in ventilation. Using standard assumptions about infectiousness, we estimated that a health worker would have a 24.8% annual risk of becoming infected with Mycobacterium tuberculosis, and that a patient would have an 0.1% risk of becoming infected per visit. Opening existing doors and windows and rearranging patient pathways to preferentially use better ventilated clinic spaces result in important reductions in Mycobacterium tuberculosis transmission risk. However, unless combined with other tuberculosis infection prevention and control interventions, these changes are insufficient to reduce risk to health workers, and other highly exposed individuals, to acceptable levels.
Diverse clinical and social circumstances: Developing patient-centred care for DR-TB patients in South Africa
(The Union, 2021-09-21) Mitrani, Leila; Dickson-Hall, Lindy; Le Roux, Sacha; Grant, Alison D.; Kielmann, Karina; Mlisana, Koleka; Moshabela, Mosa; Nicol, Mark P.; Black, John; Cox, Helen
Objective: To describe the medical, socio-economic and geographical profiles of patients with rifampicin-resistant TB (RR-TB) and the implications for the provision of patient-centred care.
Drug-resistant tuberculosis patient care journeys in South Africa: A pilot study using routine laboratory data
(Ingenta, 2020-01-01) Hill, Jeremy Stewart; Dickson-Hall, Lindy; Grant, Alison D.; Grundy, Chris; Black, John; Kielmann, Karina; Mlisana, Koleka; Mitrani, Leila; Loveday, Marian; Moshabela, Mosa; Le Roux, Sacha; Jassat, Waasila; Nicol, Mark; Cox, Helen Suzanne
SETTING: Thirteen districts in Eastern Cape (EC), KwaZulu-Natal (KZN) and Western Cape (WC) Provinces, South Africa.