Figure legends
Figure 1. The time course of the functional capacity. (A) Changes in the functional capacity between baseline and 3 months after the pacemaker implantation. Three months after the pacemaker implantation, 43% of those with a poor and moderate FC at baseline improved to a good FC (16+105/40+239). (B) The distribution of the FCs at baseline, 3 months, 6-month, and 1 year after the pacemaker implantation. The patients were a priori classified into a poor FC (<2 METs), moderate FC (2<METs <4), and good FC (> 4 METs). FC=functional capacity, METs=metabolic equivalents.
Figure 2 . Kaplan-Meier analysis of the time to the subsequent outcome.
(A ) The cardiovascular hospitalization rate was higher in the patients with a poor FC than in those with a moderate or good FC.
(B ) The total mortality rate was higher in the patients with a poor FC than in those with a moderate FC or good FC. FC=functional capacity.
Figure 3 . Subgroup analysis among the patients with a poor functional capacity.
(A ) Changes in the functional capacity during a 1-year follow-up. Seven (1.75%) patients improved to a moderate FC, and 19 (47.5%) had a marked improvement. FC=functional capacity, F/U=follow up.
(B ) The total mortality rate. A log-rank test was not applied because no patients with a good FC died.