Which organization is primarily responsible for leading improvement of health care worldwide through evidence-based practices?

• A. National Institute of Health Care Improvement
• B. Institute for Healthcare Improvement (IHI)
• C. Hospital Quality Improvement Alliance
• D. World Health Organization

Answer: (B)

Focusing on how to improve care across health systems using proven methods is the realm of improvement science, and this is exactly what the Institute for Healthcare Improvement does. It’s a nonprofit dedicated to spreading evidence-based approaches for real-world healthcare improvement. It provides frameworks like the Model for Improvement and PDSA cycles, tools, and collaborative learning networks that help organizations test changes, measure impact, and scale successful practices worldwide. That emphasis on practical, evidence-based improvement across diverse settings is what makes it the best match for leading healthcare improvement globally.

The World Health Organization, while central to global health and guidelines, operates more as a global public health authority shaping policies and standards rather than driving day-to-day improvement methods across health systems. The other options aren’t recognized organizations responsible for this kind of worldwide improvement effort.