[Improvement knowledge has been applied when changing health services - and continues to be needed]. / Förbättringskunskap behöver fortsatt tillämpas i vården.

In 2002, Läkartidningen published a call to apply improvement knowledge in efforts to change health services. Looking back over the past 20 years, we highlight many scientifically documented examples of such application. Many efforts, often within ¼breakthrough collaboratives«, have included Swedish national quality registries, with documented health outcome improvements related to application of Improvement Knowledge. Applications have been evaluated through improvement science studies. A literature review documented 32 PhD theses addressing healthcare improvement published by Swedish universities. Increasingly, improvement knowledge definitions and applications include - and harness - the experiences and knowledge among patients and their families. To meet challenges in the future, all health care stakeholders will need to master and apply improvement knowledge.