Memantine v placebo at 12 weeks in severe dementia*

OutcomesMemantinePlaceboRBI (95% CI)NNT (CI)
*CGI-C=Clinical Global Impression of Change; BGP=Behavioural Rating Scale for Geriatric Patients. Other abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article.
Treatment response on the CGI-C73%45%62% (25 to 114)4 (3 to 8)
Coincidental response on the CGI-C and BGP subscore61%32%94% (35 to 186)4 (3 to 8)