The basis for theassumed risk(e.g. the median control group risk across studies) is provided in footnotes. Thecorresponding risk(and its 95% confidence interval) is based on the
assumed risk in the comparison group and therelative effectof the intervention (and its 95% CI).
CI:Confidence interval;RR:Risk ratio;
Music therapy for people with schizophrenia and schizophrenia-like disorders (Review) 4
Copyright © 2013 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.
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.
1 Limitations in the designs such as poorly reported randomisation and blinding, as well as less-well defined music therapy.
2 The effect was in the large range according to Cohen 1988.
3 Imprecision - only one study reported results on this outcome.
4 Very large effect based on direct evidence with no major threats to validity.
5 Inconsistency - Heterogeneity between studies was high and significant.
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