Table 2

Summary of Patient Characteristics and Baseline Preoperative Function

Patient Characteristics And Baseline, Preoperative Function
Dropouts/Withdrawn Patients Mean, (SD), N
Subjects Mean (SD) N
T-Test Results p-value

Age (years)
68.03, (12.30), 36
63.81, (10.19), 152
p = 0.033
BMI kg/m2
29.96, (5.40), 36
30.15, (4.82), 151
p = 0.839
TUG score (seconds)
11.23, (4.39), 36
10.14, (3.67), 152
p = 0.128
6 MWT distance (meters)
370.06, (111.20), 35
412.05, (118.12), 148
p = 0.057
Stair Test (seconds)
22.44, (9.34), 35
17.65, (9.91), 151
p < 0.010
WOMAC PF score
30.97, (12.19), 36
32.86, (11.30), 152
p = 0.377
LEFS score
32.61, (13.21), 36
30.03, (12.54), 152
p = 0.272

Abbreviations: N = Number

SD = Standard Deviation

BMI = Body Mass Index

TUG = Timed up and go test

6 MWT = Six Minute Walk Test

PF = Physical Function

LEFS = Lower Extremity Function Scale

Kennedy et al. BMC Musculoskeletal Disorders 2006 7:100   doi:10.1186/1471-2474-7-100