Figure 3. Demographics, baseline, last, and change in LDL for MMP patients and for non-MMP patients. Criteria for inclusion were: all secondary-prevention members who received lipid drugs in the three months between 6/1/98 and 8/31/98; a baseline LDL measured at least 60 days prior to the date of dispense, a last LDL measurement 10-12 months after the baseline; and current members alive as of 6/30/99. Both groups had similar populations and demographics: total patients included in analysis (MMP = 458 vs non-MMP = 398), mean age (64.9 vs 67.1), sex (65.9 % male vs 64.1% male), and baseline LDL (127.4 mg/dL vs 124.9 mg/dL). Mean time between LDL measurements was ten months for both groups. A one-tailed t test performed on change in LDL demonstrated a significant difference: MMP patients made more improvement in LDL than non-MMP patients (MMP = -21.0 mg/dL vs non-MMP -14.9 mg/dL, Z = 2.33, p < 0.0006).