Empowering knowledge and its connection to health-related quality of life: A cross-cultural study: A concise and informative title: Empowering knowledge and its connection to health-related quality of life

Aims: Assess the association between patient education (i.e. empowering knowledge) and preoperative health-related quality of life, 6 months postoperative health-related quality of life, and the increase in health-related quality of life in osteoarthritis patients who underwent total hip or total knee arthroplasty.

Method: This is a cross-cultural comparative follow-up study using structured instruments to measure the difference between expected and received patient education and self-reported health-related quality of life (EQ-5D) in Finland, Greece, Iceland, Spain and Sweden.

Results: The health-related quality of life was significantly increased 6 months postoperatively in all countries due to the arthroplasties. In the total sample, higher levels of empowering knowledge were associated with a higher health-related quality of life, both pre- and postoperatively, but not with a higher increase in health-related quality of life. On the national level, postoperative health-related quality of life was associated with higher levels of empowering knowledge in Finland, Iceland and Sweden. The increase in health-related quality of life was associated with levels of empowering knowledge for Greece.

Conclusions: Overall, it can be concluded that the level of empowering knowledge was associated with high postoperative health-related quality of life in the total sample, even though there is some variation in the results per country.