An exploration of facilitators and challenges in the scale-up of a national, public sector community health worker cadre in Zambia: a qualitative study.

BACKGROUND: In 2010 a public sector cadre of community health workers called Community Health Assistants (CHAs) was created in Zambia through the National Community Health Worker Strategy to expand access to health services. This cadre continues to be scaled up to meet the growing demands of Zambia's rural population. We summarize factors that have facilitated the scale-up of the CHA program into a nationwide CHW cadre and the challenges of introducing and institutionalizing the cadre within the Zambian health system. METHODS: Semi-structured, individual interviews were held across 5 districts with 16 CHAs and 6 CHA supervisors, and 10 focus group discussions were held with 93 community members. Audio recordings of interviews and focus group discussions were transcribed and thematically coded using Dedoose web-based software. RESULTS: The study showed that the CHAs play a critical role in providing a wide range of services at the community level, as described by supervisors and community members. Some challenges still remain, that may inhibit the CHAs ability to provide health services effectively. In particular, the respondents highlighted infrequent supervision, lack of medical and non-medical supplies for outreach services, and challenges with the mobile data reporting system. CONCLUSIONS: The study shows that in order to optimize the impact of CHAs or other community health workers, key health-system support structures need to be functioning effectively, such as supervision, community surveillance systems, supplies, and reporting. The Ministry of Health with support from partners are currently addressing these challenges through nationwide supervisor and community data trainings, as well as advocating for adding primary health care as a specific focus area in the new National Health Strategy Plan 2017-2021. This study contributes to the evidence base on the introduction of formalized community health worker cadres in developing countries.

Implementation of the Community Health Assistant (CHA) Cadre in Zambia: A Process Evaluation to Guide Future Scale-Up Decisions.

Universal health coverage requires an adequate health workforce, including community health workers (CHWs) to reach rural communities. To improve healthcare access in rural areas, in 2010 the Government of Zambia implemented a national CHW strategy that introduced a new cadre of healthcare workers called community health assistants (CHAs). After 1 year of training the pilot class of 307 CHAs deployed in September 2012. This paper presents findings from a process evaluation of the barriers and facilitators of implementation of the CHA pilot, along with how evidence was used to guide ongoing implementation and scale-up decisions. Qualitative inquiry was used to assess implementation during the first 6 months of the program rollout, with 43 in-depth individual and 32 small group interviews across five respondent types: CHAs, supervisors, volunteer CHWs, community members, and district leadership. Potential 'implementation moderators' were explored using deductive coding and thematic analysis of participant perspectives on community acceptance of CHAs, supervision support mechanisms, and coordination with volunteer CHWs, and health system integration of a new cadre. Community acceptance of CHAs was generally high, but coordination between CHAs and existing volunteer CHWs presented some challenges. The supervision support system was found to be inconsistent, limiting assurance of consistent quality care delivered by CHAs. Underlying health system weaknesses regarding drug supply and salary payments furthermore hindered incorporation of a new cadre within the national health system. Recommendations for implementation and future scale based on the process evaluation findings are discussed.