Table 1.

Category for ranking recommendations and evidence levels adopted in the guidelines. Referenced from the report [16] developed by this committee, Oxford University Press, 2022.

Category, Grade	Definition
I	Strong recommendation with strong evidence for efficacy with clinical benefit
II	General recommendation with moderate evidence for efficacy with clinical benefit
III-A	Suggestion to encourage use by expert opinion without sufficient evidence
III-B	Insufficient evidence to make any suggestion
III-C	Suggestion to discourage use because of insufficient evidence
IV	Recommendation against use with sufficient evidence of no clinical efficacy or increased adverse outcomes