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Regressionpredicted percent differences in serum PSA levels across metformin doses within covariate subpopulations. Each line represents the multivariate‐adjusted relationship at each of the following subpopulations: median diabetes duration, median age, obesity (A); statin, ASA, and diuretic use status (B); and sulfonylurea and thiazolidinedione (TZD) use status (C).
