|Exercise Capacity (Follow-Up Minus Baseline Change)|
|No. of studies||22||10|
|WMD (95% CI)||3.10 (2.01–4.20)||41.15 (16.68–65.63)|
|Egger test p value||0.052||0.806|
6MWT = 6-min walk test; CI = confidence interval; Vo2peak = maximum oxygen uptake; WMD = weighted mean difference.
↵∗ DerSimonian and Laird random effects method. Treatment or lower than 1.0 favors exercise intervention; negative WMD favors exercise intervention. Positive weighted (by inverse variance) changes in exercise capacity values favor the exercise rehabilitation group. Number of studies, WMD (95% CI), p value for significance of effect size, I2 statistic, and Egger test p value for small-study effect reported.