Interventions for drug-using offenders with co-occurring mental health problems: a systematic review and economic appraisal

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

*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95 % confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95 % CI)
CI confidence interval
GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate
Very low quality: We are very uncertain about the estimate

ISSN: 2194-7899