Fig. 5

Kaplan-Meier survival curves for the two groups used in the study. The y-axis gives the proportion of patients still in treatment (not aligned) over time (days on x-axis). By drawing a line perpendicular to the x-axis at a given time value, the proportion of patients not completed for each group is determined from the corresponding y-axis. There is clear separation occurring as early as 20 days. This separation is maintained throughout the duration of the study