Table 6

Credibility ratings for approaches to valuing changes in the risk of acute morbidity

Criteria

Approach

Welfare Theoretic (Y/N)

Numbers of Studies (Many/Some/Few)

Other Limitations

Rating

COI

No

M

Pricing medical services can be difficult

C

Revealed preference (averting behavior)

Y (under restrictive conditions)

Many for injury and accidents; not for acute respiratory symptoms

C

CV and choice experiments: Health

Y

S

Old methods/studies; some ad hoc estimates; small samples

B

QALYs

Y (under very restrictive conditions)

M

Scores insensitive to severity of acute effects

C

Bell et al. Environmental Health 2008 7:41   doi:10.1186/1476-069X-7-41