Table 6 Credibility ratings for approaches to valuing changes in the risk of acute morbidity
From: Ancillary human health benefits of improved air quality resulting from climate change mitigation
| Â | Criteria | Â | ||
|---|---|---|---|---|
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 | Â | 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 |