The systematic identification and selection of research is guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 framework. This analysis searched for primary care models, frameworks or intervention studies directed toward health care system improvements in small island developing states (SIDS) and low- and middle-income countries (LMICs); Evaluated the level of adequacy and effectiveness of primary health care systems in Grenada along with similar health systems; were published in English and peer-reviewed; included quantitative, qualitative, or mixed-methods studies.A comprehensive search was performed in PubMed, MEDLINE, Scopus, Embase, Web of Science, and Google Scholar using a combination of MeSH terms and keywords, such as:"primary care" along with "health system strengthening" and terms related to Grenada and Caribbean health systems as well as universal health coverage and health system effectiveness and healthcare access. Studies were excluded if they: Focused solely on tertiary or specialty care. Studies that consisted only of opinion pieces, commentaries or conference abstracts without full data were excluded from consideration.

The research period lasted from August to September of 2024 and originally included publications in all languages. Details of the selection process can be found in the PRISMA flow diagram.

A collection of primary information on study design and population characteristics along with intervention details, primary care model descriptions, outcome measures and implementation barriers/facilitators were received.

The researcher applied the Cochrane Risk of Bias tool to randomized studies and used Joanna Briggs Institute (JBI) Critical Appraisal tools for observational and qualitative studies. The systematic review followed PRISMA guidelines to achieve methodological rigor and reliable analysis of primary care effectiveness in Grenada. Because the included studies differed substantially in design, setting and outcome measures, a quantitative meta-analysis was not appropriate; the evidence was therefore combined using a narrative synthesis organised around the review themes, an approach selected because it accommodates heterogeneous quantitative, qualitative and mixed-methods evidence within a single small-island context.

After duplicates are eliminated, titles and abstracts are checked against predetermined inclusion and exclusion criteria 3. The criteria encompass significance for primary healthcare, suitability for small island states, and accessibility to information on funding tactics, governance frameworks, and medical results. To ensure openness in the research selection process, the PRISMA 2020 flow diagram graphically displays the number of studies that are found, screened, and either included or removed at each stage.

Following the selection of research, a systematic synthesis is carried out to extract pertinent data that addresses the review’s objectives. Data extraction includes information on the significance of primary healthcare, funding methods, stakeholder and governmental involvement, and instances of effective models from nations with small populations. The synthesis’s initial goal is to compile data showing how crucial primary healthcare is to improving overall health outcomes 1. This contains details about community involvement, preventative services, and the function of primary care in the treatment of common health problems.

The second goal entails a thorough analysis of funding approaches. Synthesis includes identifying the many financial models that prosperous small island nations use and assessing how well they fit Grenada’s economic environment. This covers examinations of international cooperation, public-private partnerships, and creative funding methods. The third goal explores the functions of stakeholders and the government. Integrating information on stakeholder engagement tactics and governance frameworks offers a thorough grasp of the cooperative efforts necessary for primary healthcare implementation. This covers information on regulatory frameworks, policy frameworks, and community involvement.

A narrative method is used during the synthesis phase to integrate data from many studies and produce a comprehensible and contextualised knowledge. In addition to presenting the findings of individual studies, the goal is to make links, contrasts, and broad themes that support the overall goals of the systematic review. The PRISMA 2020 flow diagram ensures transparency and clarity by providing a visual depiction of the methodical study selection process. The methodical process of synthesising the specified studies involves obtaining and compiling data in order to fully fulfil the stated objectives. This sound methodology serves as the cornerstone for obtaining significant insights that can guide Grenada’s healthcare practises and policy.

The 15 studies that met the inclusion criteria are summarised in Table 1, which identifies each included study and the review theme(s) it informs. These study-to-theme mappings form the basis of the thematic synthesis and the discussion that follow, so that the link between the reviewed papers and the reported findings can be traced and the review repeated by other researchers.

It is impossible to overestimate the significance of primary healthcare in advancing population well-being, especially in the peculiar setting of small islands like Grenada. Primary healthcare is fundamentally about offering easily accessible, community-based services that address the many health needs of people. In Grenada, where population dispersal and geographic limitations may present difficulties, building a strong primary healthcare system is critical to provide fair access to basic medical treatments 1.

Primary healthcare is important, but it's not only about treating patients; it's about taking a whole-person approach that includes early intervention, health education, and prevention. Primary healthcare becomes a proactive force in improving general community health by addressing health disorders at their earliest stages and encouraging healthy habits. The emphasis on preventative care can lessen the load on more sophisticated healthcare services, which makes it especially important in small island nations with limited resources.

Coming up with successful finance solutions is one of the main obstacles to providing primary healthcare in small island communities. Innovative strategies are frequently required to secure sustainable financing due to limited resources 1. It becomes imperative to investigate international cooperation, public-private partnerships, and innovative funding sources. Examining effective models from other island settings can show Grenada how to obtain sufficient funds for its primary healthcare programmes. Grenada can effectively manage the financial constraints associated with providing comprehensive healthcare to its populace by identifying and modifying financing solutions that have demonstrated efficacy in similar circumstances.

Moreover, the ability to raise money effectively and manage resources wisely is inextricably linked to the performance of basic healthcare on tiny islands. This calls for a carefully considered blending of public funding, outside assistance, and community involvement 5. Navigating these financial complexities means that Grenada must look for ways to collaborate internationally and take advantage of alliances that support its healthcare objectives. Effective financing techniques support the resilience and sustainability of the primary healthcare system in addition to ensuring the availability of resources.

It is impossible to exaggerate the significance of basic healthcare for the people living on small islands like Grenada. It functions as the cornerstone of community health, aggressively addressing both current and preventive health issues. Effective financing solutions are critical to the viability of primary healthcare in these kinds of environments. Grenada may set an example for a robust and sustainable primary healthcare system that would ultimately improve the general health and well-being of its citizens by taking lessons from similar countries' experiences and implementing creative financing methods 2. The primary healthcare environment is shaped by the involvement of multiple stakeholders and the government. It is crucial to comprehend this dynamic in order to develop policies that work well in the small island nation of Grenada.

Government participation in the creation and maintenance of primary healthcare in Grenada is a strategic necessity, not just a formality. The legislative framework, resource allocation, and overarching vision required to establish a strong primary healthcare system are provided by government engagement. It acts as the impetus for policy creation, guaranteeing that health care programmes are in line with more general objectives of national development.

Stakeholders, which include organisations like non-governmental organisations, community groups, and healthcare providers, contribute a range of viewpoints and levels of experience. Their participation guarantees a comprehensive primary healthcare strategy that takes into account the diverse demands of the populace 3. In Grenada, where cultural subtleties and community dynamics are important, stakeholder involvement serves as a means of customising healthcare services to the unique requirements and expectations of the populace.

The justification for this kind of participation stems from the understanding that providing healthcare is a team effort that necessitates coordinated efforts from several parties. While stakeholders supply community insights, cultural awareness, and frequently more resources, government agencies bring authority, infrastructure, and finance. An inclusive, flexible, and responsive healthcare ecosystem is promoted by this synergy 5.

Providing primary healthcare effectively requires more than just good intentions; it also requires a thorough policy framework that directs implementation, tracks advancement, and guarantees sustainability. Developing Grenada-specific policies entails tackling particular issues and taking advantage of favourable circumstances. First and foremost, regulations need to put accessibility first, taking into account how dispersed small island populations are. This entails the thoughtful placement of healthcare facilities to close geographical gaps and guarantee that even rural populations have access to critical services. It may also involve utilising technology for telehealth efforts.

Second, policy must prioritise illness prevention and health promotion. It is essential to stop health problems before they get worse because small island governments may have limited resources. Campaigns for public health, educational programmes, and community involvement ought to be essential elements of these strategies. Policies should also encourage and assist primary care providers. Putting in place strategies to keep qualified specialists on hand becomes essential in small islands where the number of healthcare workers may be restricted. This could include efforts to stop the brain drain of talented individuals from the healthcare industry, professional development opportunities, and scholarship programmes.

Furthermore, rules ought to support joint ventures between the public and private domains. Public-private partnerships have the potential to augment resource mobilisation, optimise service delivery, and bolster the primary healthcare system's overall resilience. The particular demands of the populace have made government and stakeholder involvement in basic healthcare in Grenada a strategic need rather than just a procedural necessity. A comprehensive grasp of these needs is necessary for creating effective policies, as is a proactive attitude to resolving issues and seizing opportunities. Grenada may lead the way in developing a primary healthcare system that is inclusive, adaptable, and sustainable that meets the many health requirements of its citizens by encouraging cooperation and putting well-thought-out policies into place.

Small islands like Grenada require careful consideration of their human resource needs as well as infrastructure resource requirements in order to build and maintain an efficient primary healthcare system. It takes careful planning and financial commitments to address these issues in order to guarantee a robust and long-lasting healthcare system. The effectiveness of any healthcare system depends critically on the availability and retention of a qualified workforce, particularly in small islands where human resources may be scarce. A multipronged strategy is needed to counteract brain drain, the exodus of highly qualified workers in search of better prospects elsewhere.

First and foremost, it's critical to make local investments in professional development and education. Grenada can develop a pool of skilled practitioners who are more likely to stick around and improve the local healthcare scene by giving healthcare workers opportunities to advance their knowledge and abilities within the nation. Another key tactic is to implement competitive benefit and compensation packages. Sufficient compensation discourages experts from looking for opportunities outside and draws in highly qualified candidates. Furthermore, providing incentives like housing aid or loan forgiveness programs can make remaining in the community healthcare system more alluring overall.

Moreover, it is imperative to establish a constructive and encouraging work atmosphere. This entails creating an environment that respects healthcare workers, offers chances for advancement, and guarantees a good work-life balance. By increasing job happiness, these policies lessen the chance that professionals may look for work elsewhere.

The foundation of primary healthcare's efficacy is its infrastructure. In small islands such as Grenada, where topography poses significant obstacles, it becomes crucial to make sure infrastructure is both sufficient and dispersed. First and foremost, it is imperative that well-equipped primary care facilities be built in key areas. A variety of healthcare services, including basic diagnostic and treatment services as well as preventive care, should be provided by these facilities. Accessibility is essential, particularly in rural locations where it could be difficult to get to medical facilities.

Infrastructure can be improved by investing in technology to support healthcare delivery. Digital communication tools, electronic health records, and telehealth programs can help close access gaps, promote information exchange, and enhance overall healthcare coordination. In addition, the infrastructure of transportation contributes to the timely arrival of patients at medical facilities 2. To reach isolated populations in places with difficult terrain, it is imperative to build dependable transportation networks or mobile healthcare units.

It is equally crucial to provide a steady supply chain for drugs, medical equipment, and other necessary supplies. Because small islands are more susceptible to supply chain interruptions, strategic planning and teamwork are essential to securing and preserving the resources that are required. The success of primary healthcare in tiny islands is closely related to the requirements for infrastructure and human resources. The three main components of brain drain prevention strategies should be competitive pay, supportive work environments, and education. Establishing well-equipped buildings, utilizing technology, and guaranteeing dependable supply chains and transportation are all part of the infrastructure requirements. Grenada may establish a robust and efficient primary healthcare system that caters to the varied requirements of its populace by tackling these facets all at once.

The effectiveness of a healthcare system as a whole depends on hospitals' support of basic healthcare. Hospitals are essential for supporting and bolstering primary healthcare services in low-resource nations like Grenada with small populations.

As key nodes in the healthcare system, hospitals work closely with primary care providers to provide patients with comprehensive, well-coordinated care. Providing specialist care and services that go beyond the purview of primary healthcare institutions is one of the main roles. This covers advanced medical treatments, diagnosis, and the management of intricate medical issues. In addition, hospitals serve as primary care practitioners' referral hubs. Primary care physicians can seamlessly ensure continuity of treatment by referring patients to hospitals when necessary for specialized interventions or consultations. Creating efficient referral networks improves the healthcare network's general responsiveness and efficiency 6.

Additionally, hospitals are essential for health education and training. They provide possibilities for lifelong learning and skill development, acting as training grounds for medical professionals. A well-rounded and competent healthcare personnel is a result of collaboration in educational initiatives between hospitals and primary healthcare institutions. Furthermore, hospitals support public health programs. They frequently take part in epidemiological surveillance, community outreach, and preventative health initiatives. Hospitals support the preventative focus of primary healthcare by actively engaging in these initiatives, which improve population health and well-being overall.

Grenada can gain important insights into developing its primary healthcare plan by looking at the examples of small countries with efficient healthcare systems. Iceland, a tiny island nation with a population of about 360,000, is one famous example. Strong primary care collaboration between primary care and hospitals, community involvement, and preventative care are all hallmarks of Iceland's well-established primary healthcare system. Bhutan is another prime example; it is a nation of about 750,000 people. Bhutan's healthcare system places a high priority on accessibility, placing health facilities in key locations to guarantee coverage even in isolated regions. The nation has effectively merged contemporary medical procedures with ancient medicine, encouraging a wholistic approach to wellness.

In addition, the decentralized healthcare model is used in the Faroe Islands, an independent region within the Kingdom of Denmark with a population of about 50,000. Primary healthcare services are offered by neighborhood health centers, and partnerships with hospitals guarantee that patients receive expert care when necessary. These illustrations highlight several approaches to healthcare in nations with sparse populations, highlighting the significance of customizing plans to the particular circumstances of each state. Strong governance, community involvement, and productive cooperation between primary healthcare and hospital services are frequently critical to the success of these systems.

Hospitals have a variety of roles in supporting primary healthcare, including education, public health campaigns, referral networks, and specialist care. Analyzing case studies from low-population nations such as Bhutan, Iceland, and the Faroe Islands offers Grenada useful information by presenting a variety of models that fit its particular situation. Grenada can create a healthcare system that best balances the roles of hospitals and primary healthcare in order to address the wide range of health requirements of its population by utilizing these findings.

Primary healthcare implementation in small populations, like Grenada, has benefits and drawbacks that need to be carefully evaluated in order to maintain the effectiveness and sustainability of the healthcare system 2.

Preventive care is a major focus of primary healthcare, as it addresses health problems in their early stages. This proactive strategy is especially beneficial for small communities, because controlling health risks and stopping the spread of diseases before they worsen can have a major positive impact on the general health of the community. Primary healthcare provides comprehensive treatment by taking into account each person's social, economic, and cultural background in addition to their physical condition. In smaller communities, where interconnection is more prominent, this all-encompassing approach is essential, and it is critical to treat health within the larger framework of community dynamics.

Generally speaking, primary healthcare is less expensive than specialized treatment. Allocating resources efficiently is essential for tiny populations with limited resources. Primary healthcare can help save costs and make the most use of existing resources by emphasizing preventive and community-based services 7. Small populations' close-knit communities foster greater personal community involvement. Primary healthcare, by virtue of its community-oriented approach, can take use of this close relationship to encourage shared responsibility for community well-being, health education, and active involvement. When primary healthcare is dispersed strategically, accessibility is guaranteed even in remote locations. Ensuring equitable health outcomes in small areas with potential geographic obstacles requires making healthcare services easily accessible to all individuals.

The scarcity of specialized services is one of the main obstacles. Small populations might find it difficult to support a large number of experts, which could force people to seek out specialized treatment outside of their community, which can be logistically difficult. Small populations frequently experience resource shortages, such as a shortage of medical personnel and facilities. These limitations might affect the range and caliber of basic healthcare services, which could compromise the efficacy of diagnostic and preventative interventions.

Small populations are more susceptible to shocks from the outside world, like pandemics and natural catastrophes. During emergencies, the inadequate healthcare infrastructure could become overburdened, highlighting the significance of efficient emergency planning and response systems. The population's size may restrict the opportunities for innovative healthcare delivery. The smaller scale and scarcer resources in these contexts can make it difficult to introduce and implement new technology or healthcare paradigms. One problem associated with tiny populations is dependency on a small number of healthcare providers. Vulnerabilities may result from this, particularly if important providers experience difficulties or choose to move, which could stop the provision of healthcare services.

The benefits and drawbacks of providing primary healthcare to small populations highlight the need for customized approaches that take use of community-oriented care's advantages while addressing its drawbacks. Grenada can create a primary healthcare system that best meets the various health requirements of its people while advancing the general well-being of the community by carefully managing these factors.

Analyzing and debating the results of our systematic research provided practical guidance for establishing Grenada's primary healthcare system. Evidence demonstrates that a preventive approach is not only clinically effective but also financially prudent when considering the significance of basic healthcare. The potential of community engagement to serve as a catalyst for long-term health outcomes is highlighted in the conversation. It also makes one think about how to modify preventive measures to fit the geographic and cultural setting of Grenada.

The assessment of successful models emphasizes the significance of diversification in funding tactics. The conversation explores the possible advantages of international cooperation while highlighting Grenada's obligation to actively participate in global health projects. Additionally, it takes into account how public-private partnerships might maximize the mobilization of resources. Governance structures are examined in relation to government and stakeholder involvement. The results imply that efficient primary healthcare is predicated on a clearly defined governance framework. The implications for Grenada are discussed, with a focus on the necessity of well-defined policy frameworks and proactive involvement with a range of stakeholders, including community leaders.

Talks about the value of funding regional professional development and education are prompted by human resource concerns. The interpretation places a strong emphasis on how attractive pay and encouraging work cultures help to keep talented individuals on staff. Potential policy changes to encourage medical personnel to remain in the Grenadian healthcare system are discussed in depth. In terms of infrastructure, the interpretation highlights the necessity of technological integration and facility location that is strategic. The conversation looks at creative ways to deal with mobility issues, such mobile medical units, and investigates how digital solutions might improve healthcare accessibility.

In addition to emphasizing the importance of every facet of primary healthcare, the interpretation and discussion of the results of our systematic research offer practical recommendations for Grenada. Policymakers and healthcare professionals may steer toward a customized and efficient primary healthcare system that addresses the distinct needs of Grenada's populace by carefully examining the statistical data and diagrams and having thoughtful conversations.

The results of the systematic review revealed important themes that offer a thorough grasp of the dynamics and factors to be taken into account while creating an efficient primary healthcare system, especially one that is suited to the small island states of Grenada. Each of the five themes presented below was derived from the included studies mapped to it in Table 1, and the same five themes structure the interpretation in the discussion that follows, so that every finding can be traced to the specific papers from which it was drawn. There is agreement, according to the theme analysis, regarding the significance of a preventive focus in primary healthcare. Promising models emphasise preventive approaches, demonstrating a change in approach from reactive to proactive healthcare tactics 8. This theme highlights Grenada's capacity to develop an early intervention and wellness-focused healthcare system. Effective primary healthcare is frequently cited as having a foundational community-oriented approach. The thematic analysis emphasizes how crucial it is to actively involve communities in healthcare decisions in order to promote shared responsibility and a sense of ownership. Grenada is encouraged by this subject to customize interventions to the distinct social and cultural dynamics of its people.

The necessity of comprehensive treatment in primary healthcare is continuously emphasized by the review's conclusions. Effective models incorporate social, economic, and cultural factors in addition to physical health. Grenada ought to investigate all-encompassing healthcare strategies that suit the island nation's small population's tendency toward interconnectedness 9.

The thematic analysis emphasizes how successful global partnerships are at maintaining primary healthcare. The aforementioned subject proposes that Grenada need to proactively participate in worldwide health endeavors, capitalizing on outside assistance to augment its healthcare funding and resource distribution. One important topic that comes up is how successful public-private collaborations are. The analysis highlights the potential advantages of partnering with business and public sectors to maximize resource mobilization. Grenada can look at creative alliances to increase the budget for healthcare. The significance of creative funding methods is emphasized by the theme analysis. Models with innovative finance strategies work well in small island environments. In order to ensure sustainability and flexibility in the face of financial restrictions, this subject pushes Grenada to investigate creative funding options.

The thematic analysis emphasizes how important it is for primary healthcare systems to have well-defined governance structures. Grenada should place a high priority on establishing accountable and transparent governance mechanisms to direct the development and implementation of healthcare policy. One important motif that has been discovered is active involvement with stakeholders 10. The analysis highlights the importance of working with a variety of organizations, including representatives from the community. Grenada can use this topic to support the development of an ecosystem for healthcare that is sensitive to the particular requirements of its people. Effective models demonstrate the strength of teamwork in the healthcare industry. According to the theme analysis, in order to guarantee a well-coordinated and efficient healthcare system, Grenada ought to promote collaborations between local communities, non-governmental groups, and the government.

The benefits of making investments in professional development and education are emphasized by the thematic analysis. This theme promotes Grenada's establishment of initiatives that develop a resilient and trained healthcare workforce, guaranteeing the availability of qualified experts 11. Acknowledging the importance of competitive pay emerges as a crucial theme. According to the report, Grenada should put remuneration mechanisms into place to draw in and keep healthcare professionals while addressing the issues of brain drain and stable labor markets. Retaining qualified individuals is regularly linked to a supportive work environment. Grenada is encouraged by this topic to establish circumstances that support healthcare personnel' sense of community, professional development, and job happiness 12.

The report emphasizes how crucial it is to implement measures to stop brain drain. Grenada has the potential to investigate focused efforts aimed at retaining skilled healthcare personnel, such as rewards for ongoing education and ways to improve overall job contentment.

The importance of situating healthcare facilities strategically is highlighted by the thematic analysis. This theme implies that Grenada should take geographic difficulties into account when building its healthcare system, making sure that facilities are reachable even in isolated locations (Francis, Edwards and Telesford, 2023). One key theme that comes to light is the use of technology in healthcare. The report recommends that Grenada make use of technology to improve healthcare accessible, particularly in resource-poor areas, by implementing telehealth initiatives and electronic health records.

One important subject that has been recognized is addressing transportation challenges. The theme analysis recommends that Grenada look into creative ways to guarantee that people can get to medical facilities on time, such dependable transportation networks or mobile health units. A thorough summary of the major themes identified from the systematic review is given by the thematic analysis 13. Together, these themes provide Grenada with practical lessons that it may use to create a primary healthcare system that not only responds to the particular difficulties of its small island location but also builds on tried-and-true tactics and accomplishments seen in related contexts.

With a focus on the implications for Grenada specifically, the systematic review effectively accomplished its goals by meticulously synthesising the available data and insights to provide a thorough understanding of the elements necessary for establishing an efficient primary healthcare system in small island nations. The goals were designed to cover important areas of primary healthcare, governance, workforce issues, funding plans, and infrastructure needs. The systematic review achieved all of these goals in the following ways. The goal of the systematic review was to clarify the complex significance of primary healthcare by carefully examining the body of existing evidence 14. The findings on the preventive emphasis, community involvement, and holistic care components of effective models were skillfully synthesised. This knowledge offers a strong basis for assisting Grenada in creating a healthcare system that puts an emphasis on wellness and caters to the particular requirements of its people.

Numerous funding methods, such as international partnerships, public-private partnerships, and creative finance mechanisms, were carefully examined in the systematic study. The review provides policymakers in Grenada with insights to diversify funding sources, maintaining the sustainability and adaptability of the healthcare system, by synthesising research regarding the efficacy of different initiatives. The governance frameworks and stakeholder involvement in successful models were carefully studied in the review. Grenada may benefit from the review's insightful recommendations on how to customise its approach and promote an inclusive and responsive healthcare system by recognising the significance of stakeholder collaboration, transparent governance, and overall governance frameworks.

The systematic review did a good job of delving into the human resource components and providing data on supportive work environments, competitive pay, and educational programmes. The assessment helps Grenada develop and sustain a resilient healthcare staff by addressing issues with brain drain and offering insights on worker retention 15. The infrastructure requirements were thoroughly analysed by the systematic evaluation, which included creative transportation options, technology integration, and the thoughtful placement of facilities. The review provides recommendations to Grenada in strategically designing healthcare infrastructure that promotes accessibility and efficiency by synthesising evidence on these essential elements.

The goals of the systematic review were successfully attained by combining the available data, identifying important trends, and providing Grenada with useful recommendations. Policymakers and other healthcare professionals gain a nuanced understanding of the opportunities and challenges involved in creating an efficient healthcare system that is suited to the particular circumstances of a small island nation through the thorough analysis of primary healthcare components, funding strategies, governance, workforce considerations, and infrastructure requirements. The synthesised knowledge is a useful tool for making well-informed decisions, which helps Grenada build a primary healthcare system that is both responsive and robust.