Assertion: strong evidence | /r/DefinedAs | ≥75% of the hq studies
Facets:
Source sentences:
text: Strengths of the current approach are that two independent readers scored all the articles, that criteria for evaluation of the quality were in line with those of previous studies,6 ,7 and that predefined and stringent qualitative levels of evidence8 were used to summarise the data (strong evidence was defined as ≥75% of the HQ studies reporting an effect in the same direction).