Fig. 3

Longitudinal measurements of RVEF over 18 months. There were significant changes in RVEF over time (p < 0.001). By Sidak-adjusted pairwise comparisons with the baseline, the mean RVEF showed a small but significant decrease at 6 and 12 months (p < 0.001 for both), that was no longer significant at 18 months (p = 0.08). Data shown as mean and 95% confidence intervals (vertical bars)