The JBI Levels of Evidence can be found in Appendix III. The level of evidence relates to individual papers included in the systematic review. The levels of evidence reflect current international standards and expectations.
Open Evidence uses AI-powered tools to deliver real-time, evidence-based insights for health policy, clinical guidelines, and public health decision-making.
THEORETICAL FOUNDATIONS OF NURSING THEORY A nursing theory describes, explains, predicts, or prescribes nursing care (Meleis, 2018). Theories help you understand your patients' conditions. Also, they assist you arrange data.

Scope of Work. The consultancy requires a structured and analytical approach to synthesising evidence from multiple sources. The selected consultant(s) will be expected toStructured evidence synthesis and intervention mapping. Country case studies. Draft analytical report.
...

This particular example perfectly highlights why Synthesising Evidence On Theoretical Foundations is so captivating.
This study presents an integrative review of biophilic architecture research published between 2005 and 2024, synthesising evidence on theoretical foundations, design strategies, human wellbeing outcomes, and environmental performance.
...Enhancing Evidence Synthesis, Ethical Considerations, and Collaborative...

Its theoretical foundations lie in the synthesis of relational, psychological, and technical competencies, positioning the practitionerparticipant relationship as a primary driver of sustainable employment outcomes.
Complex causal maps have been identified as particularly useful in synthesising evidence on the health impacts of policy21,22 and on the impact of interventions on health inequalities2326 because of the nuanced and transdisciplinary approach required to address such questions.