of the performance of activities after stroke. Both groups
found small but statistically significant summary effect sizes
(SES) in favor of the group that spent more treatment time
focused on activities of daily living (ADL). In a sensitivity
analysis, larger overall effect sizes were found in studies that
weighted individual effect sizes for the differences in amount
of rehabilitation between experimental and control groups.3
In these 2 systematic reviews, however, methodological
limitations of the primary studies, differences in organizational
settings, and marked heterogeneity of patient characteristics
proved to be major confounding factors