Table 1.

Classification scheme for economic evaluations (Drummond 2005).

Are both Costs (Inputs) and Consequences (Outputs) of the Alternative Examined?
Are two or more alternatives compared?	No	No		Yes
		Examine consequences only	Examine only costs
		1B PARTIAL EVALUATION 1B		2 PARTIAL EVALUATION
		Outcome Description	Cost description	Cost-outcome description
	Yes	3A PARTIAL EVALUATION 3B		4 FULL ECONOMIC EVALUATION
		Efficacy effectiveness evaluation (e.g., RCT)	Cost analysis	Cost effectiveness analysis Cost Utility analysis Cost benefit analysis