Evid Based Nurs 5:109 doi:10.1136/ebn.5.4.109
  • Treatment

A lifestyle intervention or metformin prevented or delayed the onset of type 2 diabetes in people at risk

Lifestyle intervention (LI) or metformin plus standard lifestyle v placebo plus standard lifestyle for prevention of type 2 diabetes at 3 years*

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 LI 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)

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