Accessible Protocols in Consultation

• Enhanced Quality and Safety: Strengthens the quality and safety of existing practices through formalization, harmonization, and securitization.
• Integration with Professional Software: Codified NPI can be integrated into healthcare management software.
• Digital Documentation: Access to documentation from computers, tablets, or smartphones for ease of use.
• Broad Validation: Extends validation to all relevant professionals in the region.
• Quick and Easy Access: Facilitates rapid access to information at critical decision-making moments for prevention and care.
• Simplicity in Tracking: Eases the follow-up and evolutionary process of best implementation practices (e.g., identifying barriers, professional leadership, availability of training and support).

Quality Control and Adherence to Protocols

• Traceability: Utilizes unique coded protocols for tracking.
• Strengthened Care Link: Enhances the relationship between care provision and patient support.
• Monitoring Relevant Indicators: Provides tools for tracking key performance indicators.
• Continuous Education Tool: Serves as a resource for ongoing professional development.
• Regular Updates: Incorporates regular updates based on user feedback.

Means of Valuation

• Response to Identified Multidisciplinary Issues: Addresses problems identified by healthcare teams in a specific territory.
• Extended Roles for Various Professionals: Expands the roles of many professionals, particularly non-physicians.
• Elimination of Ineffective Protocols: Phases out protocols that are ineffective, hazardous, or costly.
• Reduction in Meeting Time: Decreases the need for multiple meetings focused on intervention planning.
• Support for Innovation: Encourages professionals to experiment with new practices, boosting their confidence.
• Financial Valuation: Ensures appropriate financial and resource allocation for effective implementation.

An independent healthcare professional or a multidisciplinary team from a multi-professional health center, a care network, a hospital, a medico-social establishment, a medico-educational facility, a nursing home, a prevention center, an occupational health service, a school/university service, or a palliative care service can select one or more NPI to integrate into an individual's personalized health pathway. This applies to individuals facing loss of autonomy (e.g., a frail person over 90 years old), at increased risk of illness (e.g., a smoker), living with a disability (e.g., loss of autonomy due to paraplegia), or suffering from an illness (e.g., a neurodegenerative disease). Given that health issues are now multifactorial and complex, the solutions available to improve each person's health are diverse and depend on local availability. Multiple NPI can be offered in prevention, care, and support by a physician, any authorized healthcare professional (e.g., pharmacist, nurse, midwife, physiotherapist), or a team. They are cataloged in a centralized digital platform, the NPI Registry. These NPI complement other health solutions provided at various points in a person's life journey (e.g., medication, medical devices, hospitalization, social assistance). They evolve over time based on the individual's health status, fragility, and needs (Figure 4).

The connection between mechanistic, interventional, and implementation studies forms the backbone of the epistemological positioning of the NPIS Model regarding the evaluation of NPI. This does not mean that an interventional study, for example, cannot explore biological mechanisms or psychosocial processes. Instead, this backbone provides coherence to the studies and structures the validation process of NPI for integration into a standardized practice framework.

The choice and implementation of an NPI at a given moment in a person's prevention and care journey do not depend on the NPI Registry, nor on the mission of the NPIS. These decisions are influenced by individual health situations, preferences, the availability of professionals, the qualifications of practitioners, accessibility in a given area, and socio-cultural contexts. The art of combining NPI with each other and with other health solutions at the right time lies with professionals, expert systems, interdisciplinary organizations, and the healthcare system in place in a specific country. The NPI Registry highlights essential practices that have proven effective and continue to evolve through research and feedback analysis. The NPIS has no authority to impose a choice of NPI. Each professional is free to follow them, to pursue others, or to create new ones. The same applies to each healthcare organization.

A scientific validation model for medications has existed since the 1960s, with specific regulations recognized worldwide (e.g., FDA, EMA, ANSM). A similar procedure has recently been implemented for medical devices in Europe. However, until now, no consensual model existed for nutritional, bodily, and psychosocial health services due to confusions between approach, protocol, and technique/ingredient. A participatory, pragmatic, and multidisciplinary consensus work followed international scientific health recommendations to address this for NPI (Ninot et al., 2023).

This work took into account the specificities of NPI, health risks, the balance between internal and external validity, the justification of explanatory mechanisms, ethical considerations in health, and respect for contexts of use. The NPIS Model accelerates research through the harmonization of methodological and ethical expectations in NPI. It also enhances the identification, referencing, transferability, and implementation of NPI for the benefit of user health and safety, improving the quality of training.

Ultimately, the NPIS Model distinguishes between individualized, science-based services aimed at addressing known health issues in Western medicine and occupational practices (lifestyle, art of living, work, sociocultural activity, personal development, pursuit of happiness, spiritual practice, etc.). In this sense, the model does not impede individuals' freedom to choose a particular lifestyle. It aims to address a specific health issue for an individual or a group of people within a limited timeframe and a framework regulated by the health sector. The NPIS Model encourages innovations across all other health sectors, particularly in health organizations and early identification actions for health problems.

An evidence-based data point is a theoretical or practical knowledge acquired through rigorous and integrated scientific methods and reasoning. The NPIS Model follows this logic in the health field (see Figure 3). It provides specific methodological and ethical recommendations for NPI for studies focusing on their mechanisms and explanatory processes (mechanistic study), their content (prototypical study), their evolution over time (observational study), their benefits and risks (interventional study), and their application and personalization modalities (implementation study).