Longitudinal serum total cholesterol patterns and subsequent clinical relapse in ulcerative colitis

Figure 3 Landmark Kaplan–Meier curves of relapse-free survival according to maximal serum total cholesterol levels. A: 1-year landmark; B: 2-year landmark; C: 3-year landmark. They show analyses at the 1-year, 2-year, and 3-year landmarks after endoscopic improvement, restricted to patients who remained relapse-free up to each landmark time point. Patients were stratified according to maximal serum total cholesterol measured before each landmark. Cutoffs are shown in each panel: (1) 4.53 mmol/L for the 1-year and 2-year landmarks; and (2) 5.56 mmol/L for the 3-year landmark. Numbers at risk are shown below each panel. Event counts after each landmark are shown below the panel titles and indicate the number of clinical relapses observed after each landmark divided by the number of patients included in the corresponding group. Log-rank P values are shown in each panel.