Skip to main content
. Author manuscript; available in PMC: 2018 Nov 25.
Published in final edited form as: Ann Intern Med. 2015 Apr 7;162(7):465–473. doi: 10.7326/M14-1420

Figure 3. Adjusted Means for Physical Function over Time by Treatment and Gender using Intention to Treat Analyses.

Figure 3.

Adjusted means of physical function scale of the Short Form-36 (SF-36) for the surgery (solid lines) and physical therapy (dashed lines) groups by gender (male = blue lines; female = red lines) over time from linear mixed models (adjusted for surgeon and baseline age). Three-way interaction for gender*group*time p=0.066; group*time within men p=0.10; group*time within women p=0.50.

SF-36 scale ranges from 0 to 100, with lower scores indicating more severe symptoms.

PT stands for Physical Therapy.