Skip to main content

Advertisement

Table 3 Significant Fixed Effects and Random Effects for Each of the Models

From: Modeling early recovery of physical function following hip and knee arthroplasty

Measure Average Recovery Model (Fixed Effects) Individual Variations in Recovery (Random Effects)
Six Minute Walk test (6 MWT) intercept (one week status), slope (rate of change at 1 week), quadratic term (weeks2)
Predictors: preoperative 6 MWT baseline score, gender; site of arthroplasty
Interactions: site of arthroplasty with rate of change at 1 week, baseline score with rate of change at 1 week
intercept
Timed Up and Go Test (TUG) intercept, slope, quadratic term
Predictors: preoperative TUG baseline score, gender, site of arthroplasty, additional outpatient treatment
Interactions: site of arthroplasty with rate of change at 1 week
intercept
Timed Stair Test (ST) intercept, slope, quadratic term
Predictors: preoperative ST baseline score, gender, site of arthroplasty, additional outpatient treatment
Interaction s: site of arthroplasty with rate of change at 1 week
intercept
WOMAC Physical Function (PF) Subscale intercept, slope, quadratic term
Predictors: preoperative WOMAC PF baseline score
intercept
Lower Extremity Function Scale intercept, slope, quadratic term
Predictors: preoperative LEFS baseline score, gender
intercept, slope