Stimulus control and relaxation (treatment) v control for secondary insomnia at 3 months

OutcomesTreatmentControlRBI (95% CI)NNT (CI)
‡Clinical improvement = substantial to significant improvement in the sleep efficiency percentage. Other abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article.
Clinical improvement57%19%197 (25 to 677)3 (2 to 12)