Figure 2.

The results from the first part of the study.

Notes: The difference between the treatment groups was not statistically significant for the knee flexion score. Furthermore, the results were robust across statistical methods and across methods of handling missing data. More specifically, the magnitude, direction, and precision of effect were qualitatively similar; although, two of these methods (ANCOVA and posttreatment [P=0.15 and 0.12, respectively]) demonstrated a trend toward lower scores in the treatment group (ie, the control group had better outcomes).

Abbreviation: CI, confidence interval; ANCOVA, analysis of covariance.