Table 3.
Distribution and floor/ceiling effects of HAAS-I and other measures in subjects with total knee arthroplasty
| Outcome measures | Test mean (SD) | Re-test mean (SD) | Floor/ceiling effects (%) |
|---|---|---|---|
| HAAS | 10.50 (3.62) | 10.52 (3.42) | 0/0 (0%,0%) |
| KOOS Symptoms | 4.40 (3.60) | n.a. | 10/0 (16%,0%) |
| KOOS Pain | 4.72 (4.10) | n.a. | 13/0 (21%,0%) |
| KOOS ADL | 9.00 (8.50) | n.a. | 15/0 (25%,0%) |
| KOOS Sport/Recreation | 8.13 (5.03) | n.a. | 0/0 (0%,0%) |
| KOOS Quality of Life | 3.97 (2.54) | n.a. | 6/0 (10%,0%) |
| NRS | 1.90 (1.20) | n.a. | 0/0 (0%,0%) |
| SF-36 Physical Function | 78.20 (18.61) | n.a. | 0/10 (0%,16%) |
| SF-36 Physical Role | 76.23 (32.73) | n.a. | 4/35 (7%,57%) |
| SF-36 Bodily Pain | 80.57 (18.11) | n.a. | 0/23 (0%,38%) |
| SF-36 General health | 52.21 (10.18) | n.a. | 0/0 (0%,0%) |
| SF-36 Vitality | 69.67 (8.60) | n.a. | 0/0 (0%,0%) |
| SF-36 Social function | 84.01 (16.31) | n.a. | 0/25 (0%,41%) |
| SF-36 Emotional Role | 95.08 (21.80) | n.a. | 3/58 (5%,95%) |
| SF-36 Mental Health | 77.90 (9.70) | n.a. | 0/0 (0%,0%) |
n.a. not available, SD standard deviation, ICC intraclass correlation coefficient, CI confidence interval, HAAS-I High-Activity Arthroplasty Score (Italian version), NRS numerical rating scale, KOOS Knee injury and Osteoarthritis Outcome Scale, SF-36 Short Form Health Survey 36 items