Resistance exercise v attention control and vitamin D v placebo in frail older people*
| Outcomes | Comparison | Score | Mean difference (95% CI) | ||
|---|---|---|---|---|---|
| Mean physical component score of 36 item short form questionnaire at 3 months | Resistance v control | 34 v 35 | −1 (−4 to 1) | ||
| Vitamin D v placebo | 35 v 35 | 0 (−2 to 3) | |||
| Event rates | RRR (CI) | NNT | ||
|---|---|---|---|---|
| Resistance v control | 54% v 58% | 7.9% (−16 to 27) | Not significant |
| RRI (CI) | NNH | |||
|---|---|---|---|---|
| *Abbreviations defined in glossary; RRR, RRI, NNT, NNH, and CI calculated from data in article. | ||||
| Proportion of people who fell over 6 months | Vitamin D v placebo | 59% v 53% | 13% (−11 to 43) | Not significant |








