Comparison of Kaplan-Meier curves and hazard plots for specific risk scoring systems for overall survival (columns 1 and 2) and for time to leukemic transformation (columns 3 and 4). Colors for risk groups are assigned in the order of risk from lowest to highest: green, gray, yellow, red, blue. The bold black dotted line represents all patients. For leukemic transformation, the cause-specific hazard is shown. The curves for time to leukemic transformation correspondingly are based on the cause-specific hazard (and are not cumulative incidence curves). Attenuation of hazards occurred over time after diagnosis in all scoring systems. After approximately 3.5 years, hazards in the separate risk groups became similar and essentially equivalent after 5 years. Note differing time scales for the Kaplan-Meier and hazard plots. A detailed view of individual scores shown in enlarged single figures is available in supplemental Figure 1A-T.