Transforming Care Through Leadership: A Mixed-Methods Synthesis of Evidence From the Philippines and the Global Health System

This study investigates the impact of healthcare leadership on patient, workforce, and organizational outcomes through a systematic review and mixed-methods synthesis of 50 empirical studies published between 2002 and 2025. The review includes 33 quantitative studies encompassing more than 100,000 patients and 45,000 nurses, alongside 17 qualitative and integrative reviews. Six studies were conducted in the Philippines, allowing for a direct comparison with 44 global studies.

Quantitative findings demonstrated consistent associations between supportive leadership styles and improved outcomes. Transformational and authentic leadership were linked to lower hospital mortality (RR range 0.72–0.82), higher patient satisfaction (OR ≈1.35–1.50), and enhanced safety culture. Toxic and despotic leadership styles, by contrast, were strongly associated with nurse turnover intention in multiple contexts, including Ghana, Jordan, Egypt, and Iran.

Qualitative synthesis, guided by the ENTREQ framework, identified five recurrent themes underpinning effective leadership: visibility and role modeling, accountability and governance, supportive organizational climate, professional development opportunities, and psychological safety. These themes were consistent across high-income and low- and middle-income settings, though Philippine studies highlighted ethical competence and managerial overload as distinctive contextual issues.

The subgroup analysis confirmed that leadership exerts similar protective effects in the Philippines and globally, though policy relevance is heightened in migration-affected systems where nurse retention is critical. The findings underscore leadership as a life-saving intervention with direct effects on both patient survival and workforce sustainability.

By integrating quantitative effect sizes with qualitative drivers, this review provides a comprehensive evidence base for policymakers and health system leaders. Leadership development and governance standards should be prioritized in national health strategies, accreditation frameworks, and workforce retention policies, particularly in countries experiencing health worker migration and resource constraints.