Long-Term Mortality Outcomes According to the Frequency of Right Ventricular Pacing in Veterans
Figure 3
Survival function for <20% versus >80% RVP. Although Kaplan-Meier analysis did not find a significant difference between these groups when they were examined without covariates, Cox regression analysis controlling for age at implant, pacemaker type, and rate responsiveness showed that overall survival was better for those veterans with >80% RVP (). Lower age, dual-chamber pacemaker, and rate responsiveness were associated with better survival. Most of the difference in risk occurs between years 3 and 8 post implant. There is little difference prior to year 2.
