Long-Term Mortality Outcomes According to the Frequency of Right Ventricular Pacing in Veterans

Figure 5

Survival function for 4 groups. The group variable, percent pacing, and pacemaker type had a significant impact on survival. Throughout the followup period, patients with dual-chamber pacemakers were least likely to die, regardless of whether they had <20% or >80% pacing. Patients with <20% and single-chamber pacemakers had both the highest percentage of patients who died (30.8%) and the shortest time to death (25% died by 4.5 years post implant). Patients with >80% and single-chamber pacemakers also had a high percentage, who died (30.5%), and a moderate survival time (25% died by 5.2 years).