Figure 3.

Survival and Differences in Survival in Age Groups 50 to 59 and 60 to 69 Years

Regression-standardized survival and differences in survival in age groups 50 to 59 years (left panels) and 60 to 69 years (right panels). Upper curves represent the estimated survival if the entire population had received a mechanical valve or a Perimount valve, respectively. The lower curves show the estimated difference in survival between the mechanical valve group and the Perimount group. The shaded areas show the 95% CI. Survival was significantly better in the mechanical valve group than in the Perimount group regardless of age group.