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

Table 4 Interpersonal psychotherapy for drug-using offenders with co-occurring mental illness

Outcomes	Illustrative comparative risks* (95 % CI)		Relative effect (95 % CI)	No of Participants (studies)	Quality of the evidence (GRADE)
	Assumed risk	Corresponding risk
	Control	Interpersonal psychotherapy
Self report drug use dichotomous Follow-up: mean 3 months	Study population		RR 0.67 (0.3 to 1.5)	38 (1 study)	⊕⊝⊝⊝ very low
	474 per 1000	317 per 1000 (142 to 711)
	Moderate

*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