Community-orientated primary care: a scoping review of different models, and their effectiveness and feasibility in sub-Saharan Africa

Abstract

Introduction

Community-orientated primary care (COPC) is an approach to primary healthcare (PHC) that originated in South Africa and contributed to the formulation of the Declaration of Alma-Ata 40 years ago. Despite this, PHC remains poorly developed in sub-Saharan African countries. There has been a resurgence of interest in strengthening PHC systems in the last few years and identifying key knowledge gaps. COPC has been an effective strategy elsewhere, most notably Brazil. This scoping review investigated COPC in the sub-Saharan African context and looked for evidence of different models, effectiveness and feasibility.

Methods

Databases were systematically searched using a comprehensive search strategy to identify studies from the last 10 years. A methodological guideline for conducting scoping reviews was followed. A standardised template was used to extract data and compare study characteristics and findings. Studies were grouped into five categories: historical analysis, models, implementation, educational studies and effectiveness.

Results

A total of 1997 publications were identified and 39 included in the review. Most publications were from the last 5 years (n = 32), research (n = 27), from South Africa (n = 27), focused on implementation (n = 25) and involving case studies (n = 9), programme evaluation (n = 6) or qualitative methods (n = 10). Nine principles of COPC were identified from different models. Factors related to the implementation of COPC were identified in terms of governance, finances, community health workers, primary care facilities, community participation, health information and training. There was very little evidence of effectiveness of COPC.

Conclusions

There is a need for further research to describe models of COPC in Africa, investigate the appropriate skills mix to integrate public health and primary care in these models, evaluate the effectiveness of COPC and whether it is included in training of healthcare workers and government policy.

Summary box.

What is already known?

• Community-orientated primary care (COPC) is an approach to delivering primary healthcare (PHC) that integrates primary care practice and public health for a defined community.

What are the new findings?

• African studies agree on nine key principles for implementing COPC.

• African studies identify factors related to governance, finances, community health workers, primary care facilities, community participation, health information and training that influence the implementation of COPC.

What do the new findings imply?

• There is a need to evaluate the extent to which COPC is supported by health policy in Africa and incorporated into the training of healthcare workers.

• There is a need to move from studying implementation to evaluating the effectiveness of COPC in strengthening PHC and enabling universal health coverage.

Introduction

Forty years ago, the Declaration of Alma-Ata was the first international declaration that emphasised the importance of primary healthcare (PHC).¹ One of the antecedents of this declaration was a small community project at Pholela in rural South Africa.² This project was a small-scale, practical and effective manifestation of many of the principles that were later enshrined in the declaration. The approach to PHC that was developed at Pholela became known as community-orientated primary care (COPC). COPC is ‘a continuous process by which primary healthcare is provided to a defined community on the basis of its assessed health needs, by the planned integration of primary care practice and public health’.³

Despite the aspirations for PHC expressed in the Alma-Ata declaration and the emergence of COPC in South Africa, PHC systems in many African countries are under-resourced and in need of strengthening. The African continent has 25% of the global disease burden, but only 3% of the world’s health workers and less than 1% of the world’s health expenditure.⁴ PHC in Africa has suffered from a lack of government commitment and investment, fragmentation by vertical disease-specific programmes, catastrophic out-of-pocket payments, low level healthcare workers with limited training, poor infrastructure, a lack of supportive supervision and low status within the health system.⁵

The importance of PHC for strengthening health systems was reiterated in the 2008 World Health Report.⁶ The forty-year commemoration of Alma-Ata in 2018 has also led to updated models of PHC⁷ and a new intergovernmental declaration.⁸ The need to strengthen PHC as a system and not just care for specific diseases has gained momentum and the global Primary Healthcare Performance Initiative (PHCPI) has recently articulated a new framework to evaluate PHC.⁹ This has led to the establishment of a research consortium to address priority research questions related to the framework and PHC as a system. This scoping review was part of an African process to assess the evidence base and identify key knowledge gaps.

From South Africa, the COPC approach was adopted internationally with examples in the USA, UK and Israel.¹⁰ A systematic review completed in 2008 found that ‘most publications related to COPC do not use the complete COPC model as originally described and evidence for its effectiveness is lacking’.¹⁰ This review, however, required publications to specifically mention COPC. Many approaches to implementing PHC have emphasised community orientation without using the term COPC, such as in Bolivia and Brazil.^{11 12} Brazil’s family healthcare teams are one such prominent example at scale that has made a significant impact on child health indicators.¹² COPC in the African context is most likely to involve community health workers (CHW) as in the Brazilian model. There is evidence for the benefit of CHW programmes in Africa although not always within a COPC model.¹³ Most recently the South Africa government has committed to COPC as part of health reforms designed to pave the way for national health insurance.¹⁴

The aim of this scoping review, therefore, was to assess the evidence for COPC in the African context over the last 10 years since the previous systematic review. The review may guide current attempts at strengthening PHC as well as identify important knowledge gaps that should be addressed through future research.

Methods

A scoping review¹⁵ was conducted on different COPC models, their effectiveness and feasibility using the following questions:

• What are the different ways in which COPC has been implemented in Africa?

• What is known about the strengths and weaknesses of current approaches to COPC in Africa?

• What evidence exists for the effectiveness of COPC in Africa?

Inclusion and exclusion criteria

Articles needed to either explicitly refer to COPC or the project being evaluated should include at least four of the five key principles from the definition³:

• Be located within a PHC context

• Focus on a defined community

• Include an assessment of the health needs of the community

• Integrate primary care practice and public health

• Be planned as a continuous process

Studies were included if they were about humans, in English or French and in the last 10 years (up to and including 2017). No limits were placed on the type of article. The application of these criteria meant that a large amount of the literature on CHWs was excluded from the review as studies would often evaluate a specific competency or health programme and not COPC.

Search strategy

The following search terms were used to search for the evidence:

• [‘Community-orientated primary care‘ OR ‘Community-orientated primary care‘ OR ‘COPC‘] AND Africa

• Community health workers (mh)/organisation & administration (OG) AND Africa

• Community participation (mh) AND primary healthcare (mh) AND Africa

• Community health services (mh)/organisation & administration (OG) AND primary healthcare (mh) AND Africa (mh)

Searches were conducted in the following databases: Cochrane Library, Trip, PubMed, Google Scholar, Sabinet, Africa Wide Information and African Journals on Line.

Screening and charting the data

Each of the search strategies was conducted by one of the researchers. Each researcher screened the titles and abstracts to exclude studies that did not meet the inclusion and exclusion criteria. The researchers then sent their selected studies to the principal researcher who excluded duplications and combined the studies into one list. The principal researcher then divided the list equally between the researchers who obtained the full-text articles. Full-text articles that did not meet the inclusion and exclusion criteria were excluded and the researchers then extracted data using a standardised template. The template included the first author, date of publication, country of origin, aim of the publication, study design (if appropriate) and key findings. Each researcher then submitted the templates to the principal researcher who integrated them into one document.

Data synthesis

Studies were placed into five categories depending on their focus: historical analysis, model of COPC, implementation of COPC, education and COPC, or effectiveness of COPC. The key characteristics of the studies were entered into an Excel spreadsheet and analysed in terms of year of publication, country of origin, type of publication, type of study design and category. The key findings were then summarised thematically in a narrative. The research team met for a 3-day workshop in Johannesburg to validate the summary of the scoping review. As this is a scoping review, there was no formal review of the quality of the included literature.

Identification of knowledge gaps

In all, 15 members of the African Primafamed (Primary care and Family Medicine) network (a network of university departments of family medicine and primary care) met in Johannesburg for a 3-day workshop in April 2018. Participants included the authors of this review and members from eight other African countries (Malawi, Lesotho, Namibia, Uganda, Malawi, Zambia, Nigeria and Botswana) and Belgium. The scoping review was presented to the whole group to validate and peer review the process of the review. The knowledge gaps revealed by the review were discussed. Following this a list of possible research questions was brainstormed and ranked in terms of priority using a nominal group technique. The group considered the following issues when prioritising research questions:

• Available knowledge: What is the current level and quality of available knowledge?

• Leverage: What is the potential for improvements in this area to contribute to strengthening PHC performance?

• Magnitude of need: How cross-cutting in this problem across countries?

• Equity: How likely is research in these areas also likely to reduce disparities?

• Innovation: How likely is the research to stimulate innovation in how PHC is strengthened or how known interventions are implemented?

• Can research address the gap?

• Is another group or entity already doing this work?

Patients and public involvement

This scoping review did not involve any patients or members of the public.

Results

Description of included studies

Overall, 1997 publications were identified, screening of the titles and abstracts resulted in 69 publications and screening of the full-text articles left 39 to be included in the review. Figure 1 shows the flow of study selection.

Figure 1.

Flow of study selection. COPC, community-orientated primary care.

Table 1 presents the characteristics of the included studies. The number of publications increased substantially in the later 5 years (n=32) compared with the former (n=7). More than half of the publications originated from South Africa (n=27) while Kenya (n=4), Mozambique (n=2) and Ethiopia (n=3) had more than one each. Most of the publications were research papers (n=27), although almost all were mixed methods (case studies (n=9) and programme evaluations (n=6)) or qualitative studies (n=10). Overall, 29 were journal articles, 4 were books or book chapters, 3 were reports published online and 3 were theses published in online repositories. The majority focused on investigating factors that influence the implementation of COPC (n=25), followed by the model of COPC (n=6), history of COPC (n=4), educational studies (n=3) and effectiveness (n=1). There were no articles in French.

Table 1.

Table of included studies

Author	Year	Countries	Focus area	Publication type	Aim or purpose of the publication
Aantjes16	2014	Ethiopia, Malawi, South Africa, Zambia	Implementation	Case studies, mixed methods, comparing four countries	Evaluation of civil society led community home-based care programmes for HIV.
Adie	2014	Nigeria	Implementation	Case study, mixed methods, 32 focus groups, 78 questionnaires, observation, document review	Evaluation of PHC implementation and strengthening through community involvement.
Austin-Evelyn18	2017	South Africa	Implementation	Programme evaluation, mixed methods in one province, 91 CHWs	Evaluation of implementation PHC re-engineering in Eastern Cape
Baatiema19	2013	Ghana		Qualitative, 17 individual, 2 focus groups and a community dialogue with service users, providers and community leaders	Evaluation of community participation in the community-based health planning and services in rural Ghana
Bam20	2013	South Africa	Model	Commentary	Describing the model of COPC in Tshwane
Curry21	2012	Ethiopia	Implementation	Qualitative, 14 focus groups, 140 participants	Evaluating community perspectives on roles of government and community in strengthening PHC in low-income settings
De Neve22	2017	Lesotho, Mozambique, South Africa, Swaziland	Implementation	Case studies, qualitative methods, 60 interviews with donors, government officials and expert observers	Evaluation of factors involved in upscaling CHW programmes for HIV in the context of complex health systems and multiple donors
Dookie23	2012	South Africa	Implementation	Commentary	Challenges facing PHC delivery in South Africa and mechanisms to assist planning
Giugliani24	2014	Angola	Implementation	Case study, document review, CHW records, qualitative interviews	Evaluation of implementation of CHW programme in Luanda
Jinabhai25	2015	South Africa	Implementation	Programme evaluation of seven districts from perspective of managers and CHWs	To evaluate implementation of ward-based outreach teams in National Health Insurance pilot sites across South Africa
Keegan2	2008	South Africa	History	Commentary	Describes the historical development of COPC from the 1940s onwards in South Africa
Kinkel26	2013	South Africa	Implementation	Qualitative, focus group interviews with seven health posts in one district	Evaluation of implementation of ward-based outreach teams in Tshwane
Knight27	2017	South Africa	Education	Case study, mixed methods, 183 medical students	Evaluates an innovative longitudinal community-based educational initiative built around the principles of COPC for undergraduate students in Kwa-Zulu Natal
Labonte28	2014	Ethiopia, Kenya, South Africa, Democratic Republic Congo	Implementation	Case studies, mixed methods	Evaluating the comprehensiveness of PHC
Marcus29	2017	South Africa	Implementation	Programme evaluation, mixed methods, 14 subdistricts and three best practice sites, viewpoint of managers	Evaluated implementation of ward-based outreach teams from perspective of managers
Marcus30	2015	South Africa	Model	Educational book	Practical guide to doing COPC
Marcus31	2013	South Africa	Model	Educational book	Practical guide to doing COPC
Moosa32	2017	South Africa	Implementation	Qualitative, 41 district managers	Views of managers on implementation of ward-based outreach teams in Johannesburg
Munshi33	2017	South Africa	Implementation	Qualitative evaluation in one health district: Five focus group discussions with CHWs; 14 in-depth interviews with team leaders and managers and ethnographic observations	Evaluation of implementation of ward-based outreach teams in Gauteng
Ndima34	2015	Mozambique	Implementation	Qualitative, 29 interviews with CHWs, supervisors and community leaders	To evaluate the effect of supervision on CHW motivation and policy implementation
Nelligan35	2016	Kenya	Education	Qualitative, interviews with eight family medicine registrars and five faculty members	Evaluating the inclusion of COPC in the curriculum for postgraduate family medicine training
Noble36	2009	South Africa	History	Commentary	Historical analysis of incorporating COPC into the Durban Medical School in the 1940s and 1950s
Nxumalo37	2016	South Africa	Implementation	Ethnographic qualitative study in three community-based organisations: 23 key informant interviews, 3 focus group interviews, observations, 74 participant observations	To explore factors that affect provision of care and access to care from CHWs in Gauteng and Eastern Cape
Nxumalo38	2014	South Africa	Implementation	Case studies, qualitative, of three CHW programmes using key informant interviews, focus groups and observations	Evaluated the challenges of implementing COPC through ward-based outreach teams
Olayo39	2014	Kenya	Effectiveness	Quasi-experimental study	Evaluation of effectiveness of COPC approach on health and social indicators
Oliver44	2015	Kenya	Implementation	Case study, mixed methods in two communities	Exploring CHWs’ views of their practice and the challenges they face
Padayachee45	2013	South Africa	Implementation	Programme evaluation, qualitative evaluation, 27 managers, focus groups with task team and CHWs	Rapid assessment of implementation of ward-based outreach teams in North West
Perry46	2017	Ethiopia, Rwanda, Zambia, Zimbabwe	Implementation	Review	Review of structure and functioning of CHW programmes in multiple countries
Pfaff47	2010	South Africa	Implementation	Case study	Evaluation of a COPC model in the context of people with stroke
Philips48	2014	South Africa	History	Commentary	Analysis of policymaking with regard to COPC post-1994 in South Africa
Reid49	2010	South Africa	Model	Commentary	Reflection on the model of COPC
Schneider50	2014	South Africa	Implementation	Case study, mixed methods, 27 telephonic interviews, 9 focus groups, document analysis	Evaluation of implementation of ward-based outreach teams in North West
Schneider51	2015	South Africa	Implementation	Programme evaluation of one urban and two rural subdistricts, 97 key informant interviews, 10 focus groups, 23 observations of CHWs, 16 patient interviews	Evaluation of reorientation of community-based services in Western Cape from focus on HIV and tuberculosis towards more comprehensive policy goals aligned with COPC
Singh13	2013	Sub-Saharan Africa	Model	Commentary	Overview of the role of and need for CHWs in sub-Saharan Africa
Story52	2017	Rwanda, Senegal	Implementation	Review of case studies	Presents a new framework for institutionalisation of community-based services for mothers and children
Van Rensburg53	2011	South Africa	History	Commentary	Historical analysis of CHW programmes in the late Apartheid period
Van Rooyen54	2017	South Africa	Education	Qualitative, documents from 242 medical students and 50 interviews with CHWs	To evaluate the impact of peer-assisted learning sessions on student and CHW capability in a COPC context
WHO55	2017	Sub-Saharan Africa	Implementation	Policy brief	Summary of evidence and policy recommendations for impact of CHW programmes in African region
Zulu56	2016	South Africa	Implementation	Programme evaluation, mixed methods, survey of 368 CHWs and interviews with 17 managers in one rural district	Evaluation of ward-based outreach teams in Kwa-Zulu Natal

CHWs, community health workers; COPC, community-orientated primary care; PHC, primary healthcare.

Findings related to the history of COPC

The origins of the COPC model were attributed to Sidney and Emily Kark who pioneered this approach at Pholela in rural South Africa during the 1940s.^{2 16–18} The Karks transformed the concept of primary care from solo general practitioners offering office-based curative care for individual patients to a personal, family and community-orientated practice. This practice was a multidisciplinary team, based in a health centre, but working extensively within a defined community. The team was also inter-disciplinary and combined health, social and psychological sciences. The team’s work was guided by data gathered within the community. Interventions led to significant reductions in syphilis, malnutrition, infant and overall mortality. The advent of Apartheid led to the abandonment of this approach and the emigration of the key leaders. While the model is an inspiration, one must also be cautious about transferring ideas from a different social, historical and political context to the current context.

Findings related to the model of COPC

Nine key COPC principles were identified (table 2).^{13 19–23} These principles resonate with the five principles extrapolated from the definition used in the methods, but elaborate further and add important principles such as community participation, being comprehensive and in our context involving a multidisciplinary team. There is no universally accepted definition of COPC, but studies within the African context converged on these nine principles.

Table 2.

Nine key principles of COPC

Principle	Definition
A defined community	The community served is specifically defined, usually in geographical terms
A multidisciplinary team approach	COPC involves a team of health workers; typically, community health workers, nurses and sometimes doctors
A comprehensive approach	Within the defined community, a COPC approach engages people of all ages, genders and includes attention to health promotion, disease prevention, care, rehabilitation and palliation
An equitable approach	COPC should be accessible, appropriate, affordable and relevant to everyone in the community. Health equity may be improved
Analysis of local health needs and assets	COPC includes assessment of the health needs of the community as well as the inter-sectoral resources available to assist with these needs
Prioritisation of health needs and interventions	The analysis of health needs leads to a process of prioritisation and then development of interventions to address these priorities that involves stakeholders from different sectors
Community participation	The analysis of health needs, prioritisation, planning and action should be done in a participatory approach with community members or structures
Evidence-based and scientific	COPC uses data collected from households, facilities, research and other sources to identify and respond to individual, household and community health needs
Service integration around users	COPC is fundamentally person-centred in how services are coordinated and continuous

COPC, community-orientated primary care.

A defined community: The community served is usually defined in terms of geographical boundaries and often in terms of a population served by a primary care facility. This goes beyond the practice population to include all members of the population at risk. Household registration can identify the population for which the primary care facility is responsible and potentially be linked to data obtained at the primary care facility on those that have attended. This could meet some of the needs of what the PHCPI refers to as empanelment.

A multidisciplinary team approach: All models of COPC included teams of CHWs supported by a variety of nurses or sometimes doctors. CHWs were typically based in the community and nurses or doctors in the primary care facility. The need for multidisciplinary teams in PHC is also recognised in the PHCPI framework.

A comprehensive approach: COPC should include health promotion, disease prevention, treatment, rehabilitation and palliative care. There was often a particular emphasis in the community on health promotion and disease prevention. Visiting all households systematically was seen as important to promote health and provide health education, identify new cases, trace contacts and support adherence. There was an integration of facility-based and community-based activities within one team. CHWs can often reach marginalised and vulnerable groups within communities.

An equitable approach: COPC should be accessible, appropriate, affordable and relevant to the community. COPC should enable greater health equity.

Analysis of local health needs and assets: COPC includes the gathering of information on health needs of the community as well as institutional or organisational assets within the community that can help to address those needs. Assets may be defined broadly in terms of inter-sectoral actors and not just healthcare.

Prioritisation of health needs and interventions: The analysis of health needs should lead to a process of prioritisation that identifies the most important needs and plans interventions to address the priorities. Interventions should be planned in an inter-disciplinary and inter-sectoral approach. This should enable engagement with the health-related socio-economic and environmental determinants of health.

Community participation: COPC activities, such as the analysis and prioritisation of health needs and planning of interventions, should be done in collaboration with the local community. Appropriate bodies such as community health committees or forums should be established to enable broad collaboration between community members and other role players. The PHCPI framework also included the core element of community engagement as a key feature of effective PHC. Conceptually, participation may imply a higher level of collaboration and partnership than just engagement.

Evidence-based and scientific: COPC gathers and analyses quantitative and qualitative data on health from the community and uses this information to plan appropriate responses at the level of the individual, household or community.

Service integration around users: COPC should be person-centred, based on partnerships between people and practitioners and enable continuity of care over time in a continuous process. Person-centredness, coordination and continuity of care are also recognised as key features of quality PHC in the PHCPI framework.

Findings related to implementation of COPC

Governance

Implementation of COPC was hindered by a lack of ongoing political commitment, poor cooperation between levels of government and conflicting mandates at the local level.^24–26

Implementation at a local level may also be constrained by poor inter-sectoral collaboration between government departments.²⁷

Managers within the district health system must have a high level of understanding and ownership of COPC.²⁸ Risks to implementation include poor communication within the services and a centralised leadership style that does not trust the COPC process.²⁹ COPC must be seen in an integrated way with other healthcare reforms.

Financing

Financial commitment is required to provide sufficient CHWs, ensure supportive supervision, procure essential supplies and equipment, support the data management system, train the people involved, and support operational costs such as space and transport.^{30 31} A failure to support one of these essential aspects risks the success of the whole endeavour.

CHW teams

Approaches based on volunteerism are less likely to succeed than those based on employment.^{13 32} A number of issues impact on retention of CHWs such as low salaries, part-time employment, interruptions in payment, uncertain contractual arrangements, no benefits and a lack of career progression opportunities.²⁴ If employment of CHWs is made via a non-government organisation (NGO), then there may be conflict between the goals of the NGO and that of the health services.

Appropriate selection of CHWs is important.²⁴ While educational criteria may be important, the CHWs should also be embedded in the community and indigenous culture.

A COPC approach often requires a re-think of the competencies required of CHWs to fulfil more comprehensive roles. CHWs should not continue to be seen as just extending the services of clinics or a particular vertical disease programme. Implementation requires clarity on what the essential competencies are and how these are addressed in training. Existing CHWs must be willing to adapt and integrate the new skills. A balance must be struck between the possible workload and accumulation of different tasks.

CHWs must also balance their ability to act as natural helpers, much like a family member or neighbour who offers simple care that is culturally appropriate, and their new tasks as part of the health system.²⁵ CHWs often allow patients to voice their difficulties and barriers to care and have a critical opportunity to assist the patient with these issues, although this may require access to resources and inter-sectoral networks.²⁵

The effectiveness of CHWs is often limited by a lack of equipment (eg, uniforms, kit bags, cell phones, medical equipment) or other resources (eg, transport, space to meet, office equipment).^{28 33}

A huge factor in successful implementation is the provision of strong management and supportive supervision.³¹ Suboptimal team leadership may be because the person is already fully committed at the local clinic, does not have the capability or training.²⁹ Other team members, such as health promoters or environmental health officers, may not be available. A failure to adequately staff the team is a recipe for poor implementation.

Family physician training often includes a role as champion of COPC and they can be a key role player within the sub-district to progressively build the COPC team and functionality.

Primary care facilities

COPC requires a functional integration of primary care staff in the clinic with those in the community. CHWs need to build good relationships with healthcare workers in the primary care facility. Clinic-based staff may be resistant because they anticipate that COPC will increase their workload or give them additional tasks.^{24 29} Primary care providers are typically nurses or mid-level practitioners (eg, clinical officers, physician assistants, clinical associates) supported by doctors. Doctors may be present in larger primary care facilities, visiting from a local hospital or not available. In the short term, COPC may increase service utilisation, although if successful may decrease the disease burden in the longer term.

Clinic-based staff may continue to see the role of the CHW as an extension of the clinic rather than understanding their broader role within the whole community. Requiring CHWs to operate from the facility may waste time in travel and in most cases they should probably operate from locations outside the clinic.²⁸

Community participation

The relationship of CHWs to their community is impacted by their ability to access support and resources, as well as concerns regarding confidentiality and privacy.^{25 29} If they are unable to assist community members, then the community loses confidence in them. Tension may also exist between community needs or expectations and what CHWs are equipped and authorised to deliver.³⁴ A community with strong social cohesion and social capital provides an enabling environment for CHWs.⁴

Active engagement with community members appears essential. Dialogue between community members, local managers, facility staff and CHWs is needed, particularly with regard to health needs, prioritisation and planning of interventions. Community-based health-related activities may require a different set of competencies from primary care workers other than clinical care and have implications for training.

Different communities may have different understandings of participation that range from the sharing of information to involvement in decision-making regarding health services. Health facility community committees can assist with community participation, but may also lead to conflict as community members are more aware of their rights. Community participation can also reflect paternalistic and authoritarian community leadership styles and undermine opportunities for participation from women, youth and marginalised men.

As well as engaging community members a COPC approach must also create a network of other relevant stakeholders. These may be governmental, faith-based, non-governmental, private sector or civil society groups.

Monitoring, evaluation, data and health information

Evidence is needed to inform planning and monitor implementation of COPC from both the routine health information system, additional audits or reports, staff performance review and supervision.^{30 31}

Data collected at the household level or other places by the CHWs need an information system to capture, analyse and convert it into useful information that can be used in decision-making.^{24 35} The quality of this data should be checked and verified. Cell phone technology and m-health solutions are being piloted to enable CHWs to collect such data. Information should support COPC at the individual, household and community level. Ideally, such data should be integrated with the rest of the PHC information system.

Findings related to effectiveness

One quasi-experimental study was identified from Kenya that demonstrated significant benefits in terms of antenatal care, health facility delivery, water use, food availability, hand washing, presence of clinic card and measles vaccination.³⁶ Impact was greater in rural compared with peri-urban or urban areas.

Findings related to education and training

Initial training of CHWs needs to be aligned with the more comprehensive roles and competencies of COPC.²⁰ Training then needs to be experiential, ongoing and structured into everyday COPC practice.^{28 34} Training should be linked to assessment and career progression.^{28 29} In addition to more organised training, supportive supervision is important in building capacity.³³

Departments of family medicine have embraced the postgraduate training of family physicians in COPC and identified learning outcomes.³⁷ Benefits have also been described in undergraduate education by exposing medical students to COPC in longitudinal educational initiatives.^{38 39} Students reported improved personal development, better awareness of the local context, community engagement and responsiveness to community health needs, opportunities for health promotion and community interventions, experience of collaborative teamwork, taking a population perspective and understanding the underlying social determinants of health. CHWs also appeared to benefit from engagement with students and there was improved knowledge sharing with the community. No studies were found looking at education of other healthcare workers.

Discussion

This review identifies nine key principles of COPC in the sub-Saharan African context, which resonate with principles expressed elsewhere.⁴⁰ These principles also dovetail with the eight key design principles recognised by the CHW impact project for community health systems, although the need to formally accredit CHW competence and to avoid user fees were not seen in the African literature on COPC.³⁸ Many health systems use CHWs, but only a few do so in a way that meets these COPC principles, and many use CHWs as part of vertical disease programmes, as extension of services from primary care facilities or for task shifting from other primary care providers. Although the term COPC is gaining acceptance in the PHC literature, in Africa it appears to be unfamiliar outside of South Africa and Kenya, and researchers coming from other disciplines, such as public health, may also not use this term. There may therefore still be a need to identify and describe models of COPC that have been conceptualised and implemented in other countries.

Most of the published work was from South Africa, which may reflect the recent focus on COPC as part of re-engineering PHC.¹⁴ This policy initiative has led to a number of studies evaluating implementation in the last 5 years. Following the Declaration of Alma-Ata, a number of African countries implemented COPC type initiatives during the 1980s and 1990s, but as this scoping review looked at the last 10 years these studies would not have been included. There is a need for more recent studies on COPC from a wider variety of countries in the region.

Almost all of the research was qualitative or mixed methods in the form of case studies or programme evaluations. There is a need for more observational or experimental research to evaluate the effectiveness of COPC in the sub-Saharan context. There may also be a need to develop tools or extend existing ones, such as the Primary Care Assessment Tool,⁴¹ to allow evaluation of the whole COPC model. There may also be a need to evaluate COPC when implemented at scale in health systems outside of particular cases or projects. South Africa and Kenya may provide an opportunity to do this as COPC is embedded in national policy.

Among the implementation research, there was little exploration of the functional integration of public health and primary care competencies among healthcare workers as well as the implications for training. COPC training may need to be more prominent in nursing and medical education at both undergraduate and postgraduate levels. In South Africa, for example, the need to re-orientate general practitioners at scale to COPC has been identified.⁴² Although the studies highlighted the importance of political commitment, there was little research focusing on how COPC is included in policy. The evidence base on implementation also points to a number of issues that need further evaluation. These include the evaluation of m-health-based information systems, the underlying datasets and their interoperability with other parts of the information system at the facility and higher levels. Further evaluation of different approaches to training, the scope of practice of CHWs in a COPC framework, the approach to supportive supervision and experiential workplace based learning, is needed. Ways of modelling COPC should also be developed and evaluated to assist policymakers in planning human and financial resources at scale. The studies on education appeared to be largely from family medicine and medical education and further evaluation of training on COPC by other disciplines and for other health workers is needed in the African context.

The scoping review was a collaborative activity among four researchers who all reside in different countries. Each person independently and separately conducted one of the subsearches in the protocol. They then applied the agreed definition of COPC to select the included studied and so there is a possibility of selection bias as the selection was not checked by a second independent researcher. Many of the key findings came from more than one study and are unlikely to be substantially altered by this possibility. There could have been some uncertainty with marginal studies as to whether to include or exclude them and reviewers did ask for a second opinion if they were unsure on specific articles. No unpublished or ongoing studies were included. The group did however meet for a 3-day workshop to validate the review results. Many excluded studies evaluated CHWs’ ability to perform specific tasks or work for specific health programmes. These studies were not included as we were interested in evaluations of COPC as a whole, in particular its comprehensive nature in delivery of care.

The review led to the identification of five priority research questions:

• What are the current models of COPC in Africa?

• In models of COPC in Africa, is there integration of public health and primary care competencies and what is the skills mix required?

• What is the effectiveness of models of COPC in Africa?

• Is the COPC approach incorporated into the training of healthcare workers in Africa?

• To what extent does national health policy in Africa drive a COPC approach?

Out of these five questions, the review team ranked the question on effectiveness as the most important. Although there is evidence globally for the effectiveness of CHW programmes with specific health programmes, such as maternal and child health, there is a need for more evaluation of the COPC approach as a reform of the PHC system as a whole and within the African context.⁴³ This dovetails with previous calls for more research on COPC to evaluate health outcomes and community participation.¹⁰

Conclusions

Over the last 10 years, COPC has been most strongly conceptualised and studied in South Africa, although a number of other countries also had approaches to PHC that met the criteria for COPC. The literature was consistent in identifying nine key principles for COPC in the African context and paid homage to the historical roots of COPC in South Africa during the 1940s. Studies identified numerous strengths and weaknesses in current approaches to COPC that related to governance, financing, CHWs, primary care facilities, community participation, use of data and information, and training. There was little evidence for the effectiveness of COPC in the African context and although such evidence exists internationally, there is a need for more focus on observational and experimental studies within the region.