Hepatitis C Virus: A Critical Appraisal of New Approaches to Therapy

Table 2

Council voting schemes.

Category	Nature of evidence
I	Evidence obtained from at least 1 well-designed, randomized, controlled trial
II	Evidence obtained from well-designed cohort or case-control studies
III	Evidence obtained from case series, case reports, or flawed clinical trials
IV	Opinions of respected authorities based on clinical experience, descriptive studies, or reports of expert committees
V	Insufficient evidence to form an opinion
	Level of support for each statement
1	Accept completely
2	Accept with some reservations
3	Accept with major reservations
4	Reject with reservations
5	Reject completely