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Table 3 Linear regression models for determining the contribution of PA on the physical composite score of the SF-36 after controlling for lower extremity impairment

From: Daily physical activity and its contribution to the health-related quality of life of ambulatory individuals with chronic stroke

   R 2 R 2 change Unstandardized ß (standard error) Standardized ß P
Model 1 Lower extremity impairment 0.134 0.134 1.53 (.632) 0.367 0.020
  Lower extremity impairment 0.134 0.134 1.33 (.598) 0.367 0.020
  PASIPD 0.260 0.126 0.457 (.182) 0.358 0.017
  Lower extremity impairment 0.134 0.134 1.53 (.632) 0.367 0.020
Model 2 Lower extremity impairment 0.130 0.130 1.2 (.626) 0.301 0.024
  Accelerometer activity kilocounts 0.234 0.104 6.41 (0.00) 0.337 0.034