Benzodiazepine discontinuation rates for cognitive behavioural therapy (CBT) plus supervised medical tapering (SMT) (combined therapy [CT]) v CBT or SMT alone in chronic insomnia*

Follow upComparisonEvent ratesRBI (95% CI)NNT (CI)
*Abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article.
10 weeksCT v CBT85% v 54%57% (9 to 148)4 (2 to 18)
CT v SMT85% v 48%77% (20 to 189)3 (2 to 9)
12 monthsCT v CBT59% v 33%78% (−3 to 250)Not significant
CT v SMT59% v 52%14% (−30 to 91)Not significant