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Table 3 Simulated economic outcomes in the Diabetes Prevention Program intervention groups over a lifetimea

From: The cost-effectiveness of diabetes prevention: results from the Diabetes Prevention Program and the Diabetes Prevention Program Outcomes Study

Outcome Lifestyle intervention Metformin intervention Placebo Intervention
Lifetime intervention costs, $ 9,718 8,801 2,907
Lifetime outcome costs, $ 42,256 46,460 48,432
Total lifetime direct medical costs, $ 51,974 55,261 51,339
Lifetime QALYs 10.89 10.45 10.32
∆ Cost vs. placebo, $ 635 3,922
∆ QALY vs. placebo 0.57 0.13
∆ Cost / ∆ QALY, $ 1,124 31,286
  1. QALY quality-adjusted life-year
  2. aCosts and QALYs discounted at 3 % per year