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. Author manuscript; available in PMC: 2015 Mar 5.
Published in final edited form as: Am J Phys Med Rehabil. 2014 Jul;93(7):579–585. doi: 10.1097/PHM.0000000000000065

TABLE 2.

Results of the hierarchical regression on 6MW distance 6 mos after TKA

Model r2 Change in r2 Change in F Significant F Change
Age 0.07 — 4.48 0.04
Age + sex 0.17 0.10 7.41 0.008
Age + sex + acute TUG time 0.24 0.07 5.42 0.02
Age + sex + acute TUG time + preoperative TUG time 0.63 0.40 62.84 <0.001