Intensive lifestyle intervention (ILI) or metformin plus standard lifestyle v placebo plus standard lifestyle for prevention of type 2 diabetes at 3 yearsâ€
| Outcome | Comparisons | Event rates | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| †Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. | ||||
| Incidence of diabetes | ILI v placebo | 14% v 29% | 50% (41 to 58) | 7 (6 to 10) |
| Metformin v placebo | 22% v 29% | 25% (13 to 35) | 14 (9 to 34) | |