Finnish doctors are pioneers in the production and utilization of evidence-based recommendations in healthcare. Doctor's databases were established by the end of the 1980s and Current Care guidelines have been devised since 1994. In evidence-based recommendations it is essential to provide the user with a description of the quality of research data used as the basis for the recommendation. Consistent, applicable and transparent methods are helpful in the judgment of the quality of studies and strength of evidence. In this article we describe the judgment of the level of evidence and the strength of recommendations according to the international GRADE working group.