A, Unadjusted and adjusted trends in fibrate prescribing, commercial. B, Unadjusted and adjusted trends in fibrate prescribing, Medicare Advantage. Note: Trends in fibrate prescribing among patients enrolled in Medicare Advantage between 2007 and 2015; observed rates are unadjusted quarterly proportions of observations that received prescriptions, and adjusted rates are trends estimated at the means of patient, physician, and primary care service area (PCSA) covariates and at the means of best linear unbiased predictions of random effects