There is overwhelming evidence, from many countries, that health care is often not delivered in accordance with scientifically set and commonly‐agreed professional standards. The result is that poor quality and unsafe care harms tens of thousands of people
every year, and scarce health care resources are squandered. The good news is that many countries, which differ enormously in the way that their health systems are structured, are improving the quality of health care. Measuring quality is a first and essential
step to reaching that goal.