Background
Despite progress towards meeting End TB strategy targets for reducing tuberculosis (TB) incidence and deaths by 2035, South Africa remains among the top ten high-burden tuberculosis countries globally. A large challenge lies in how policies to improve detection, diagnosis and treatment completion interact with social and structural drivers of TB. Detailed understanding and theoretical development of the contextual determinants of problems in TB care is required for developing effective interventions. This article reports findings from the pre-implementation phase of a study of TB care in South Africa, contributing to ASSET - a broader five-year research programme developing and evaluating health system strengthening interventions in sub-Saharan Africa. The study aimed to develop hypothetical propositions regarding the contextual determinants of problems in TB care to inform intervention development to reduce TB deaths and incidence whilst ensuring the delivery of quality integrated, respectful person-centred care.
Methods
Theory-building case study design using the Context and Implementation of Complex Interventions (CICI) framework to identify contextual determinants of problems in TB care. Between February and November 2019, we used mixed methods in six public- sector primary healthcare facilities and one public sector hospital serving impoverished urban and rural communities in the Amajuba district of KwaZulu-Natal province, South Africa. Qualitative data included stakeholder interviews, observations and documentary analysis. Quantitative data included routine data on sputum testing and TB deaths. Data were inductively analysed and mapped onto the seven CICI contextual domains.
Results
Delayed diagnosis was caused by interactions between fragmented healthcare provision; limited resources; verticalised care provision; poor TB screening, sputum collection and record-keeping. One nurse responsible for TB care, limited integration with other conditions, and policy focus on treatment adherence contributed to staff stress and limited focus on patients’ psychosocial needs. Patients were lost to follow up due to discontinuity of information, poverty, employment restrictions and limited support for treatment side-effects. Infection control measures appeared to be compromised by efforts to integrate care.
Conclusion
Interventions are required that strengthen early detection, diagnosis, treatment initiation and completion. TB policy needs to promote person-centred support for healthcare professionals and patients through the TB treatment pathway.

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Posted 25 Jan, 2021
On 03 Mar, 2021
Received 28 Feb, 2021
Received 18 Feb, 2021
On 07 Feb, 2021
On 02 Feb, 2021
Invitations sent on 01 Feb, 2021
On 23 Jan, 2021
On 23 Jan, 2021
On 21 Jan, 2021
On 19 Jan, 2021
Posted 25 Jan, 2021
On 03 Mar, 2021
Received 28 Feb, 2021
Received 18 Feb, 2021
On 07 Feb, 2021
On 02 Feb, 2021
Invitations sent on 01 Feb, 2021
On 23 Jan, 2021
On 23 Jan, 2021
On 21 Jan, 2021
On 19 Jan, 2021
Background
Despite progress towards meeting End TB strategy targets for reducing tuberculosis (TB) incidence and deaths by 2035, South Africa remains among the top ten high-burden tuberculosis countries globally. A large challenge lies in how policies to improve detection, diagnosis and treatment completion interact with social and structural drivers of TB. Detailed understanding and theoretical development of the contextual determinants of problems in TB care is required for developing effective interventions. This article reports findings from the pre-implementation phase of a study of TB care in South Africa, contributing to ASSET - a broader five-year research programme developing and evaluating health system strengthening interventions in sub-Saharan Africa. The study aimed to develop hypothetical propositions regarding the contextual determinants of problems in TB care to inform intervention development to reduce TB deaths and incidence whilst ensuring the delivery of quality integrated, respectful person-centred care.
Methods
Theory-building case study design using the Context and Implementation of Complex Interventions (CICI) framework to identify contextual determinants of problems in TB care. Between February and November 2019, we used mixed methods in six public- sector primary healthcare facilities and one public sector hospital serving impoverished urban and rural communities in the Amajuba district of KwaZulu-Natal province, South Africa. Qualitative data included stakeholder interviews, observations and documentary analysis. Quantitative data included routine data on sputum testing and TB deaths. Data were inductively analysed and mapped onto the seven CICI contextual domains.
Results
Delayed diagnosis was caused by interactions between fragmented healthcare provision; limited resources; verticalised care provision; poor TB screening, sputum collection and record-keeping. One nurse responsible for TB care, limited integration with other conditions, and policy focus on treatment adherence contributed to staff stress and limited focus on patients’ psychosocial needs. Patients were lost to follow up due to discontinuity of information, poverty, employment restrictions and limited support for treatment side-effects. Infection control measures appeared to be compromised by efforts to integrate care.
Conclusion
Interventions are required that strengthen early detection, diagnosis, treatment initiation and completion. TB policy needs to promote person-centred support for healthcare professionals and patients through the TB treatment pathway.

Figure 1

Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
Loading...