Cognitive stimulation (CST) v usual activities in dementia*
| Outcomes at 7 weeks | CST | Usual activities | RBI (95% CI) | NNT (CI) |
|---|---|---|---|---|
| *ADAS–Cog = Alzheimer’s Disease Assessment Scale–Cog; Holden = Holden Communication Scale; MMSE = Mini-Mental State Examinatin; QoL–AD = Quality of Life–Alzheimer’s Disease; Other abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article. | ||||
| ⩾4 points improvement on ADAS–Cog | 30% | 13% | 131% (27 to 330) | 6 (4 to 19) |
| Mean change score | Mean score difference (CI) | |||
| MMSE (maximum 30 [normal] points) | 0.9 | −0.4 | 1.1 (0.57 to 2.3) | |
| ADAS–Cog (maximum 70 points) | 1.9 | −0.3 | 2.4 (0.64 to 4.1) | |
| QoL–AD | 1.3 | −0.8 | 1.6 (0.09 to 3.2) | |