Table 2.
Descriptive statistics of subject characteristics.
| Variable | Means (SD) or Frequency (%) N = 43 |
Means (SD) or Frequency (%) Participated in reliability N = 22 |
Means (SD) or Frequency (%) Did not participate in reliability N = 21 |
p-value |
|
|---|---|---|---|---|---|
| Age | 68(8) | 69 (8) | 67 (8) | 0.54 | |
| Gender – Female n (%) | 30 (70) | 17 (77) | 13 (62) | 0.24 | |
| Height - cm | 164.8 (9.9) | 166.7 (8.6) | 162.7 (11.1) | 0.19 | |
| Weight - kg | 83.6 (14) | 82.2 (15.2) | 85.1 (12.7) | 0.51 | |
| Race – n (%) | 0.19 | ||||
| African- American | 1 (2) | 1 (4) | 0 | ||
| White | 42 (98) | 21 (96) | 21 (100) | ||
| Ethnicity - n (%) | 0.35 | ||||
| Hispanic | 1 (2) | 1 (4) | 0 | ||
| Non-Hispanic | 42 (98) | 21 (96) | 21 (100) | ||
| General Health - n (%) | 0.28 | ||||
| Excellent | 9 (21) | 6 (27) | 3 (14) | ||
| Good | 30 (70) | 15 (68) | 15 (72) | ||
| Fair | 4 (9) | 1 (5) | 3 (14) | ||
| Poor or Bad | 0 | 0 | 0 | ||
|
Surgery on Left Side - n (%) |
22 (51) | 10 (46) | 12 (57) | 0.55 | |
| WOMAC-PF† | 18.7 (8.3) | 16.8 (8.1) | 20.9 (8.3) | 0.91 | |
| LEFS‡ | 49.4 (9.7) | 52.7 (7.4) | 45.8 (10.8) | 0.02* | |
| Stair Test - sec | |||||
| Total Time | 18.1 (7.5) | 17.7 (6.8) | 18.6 (8.4) | 0.68 | |
| Up Time | 8.0 (3.4) | 8.0 (2.5) | 8.7 (4.5) | 0.25 | |
†
Western Ontario and McMaster Universities Osteoarthritis Index-Physical Function scale
‡
Lower Extremity Function Scale
*
Significant at p ≤ 0.05