Table 3.
Construct validity, given as Spearman correlations of the five KOOS subscales and the eight SF-36 subscales in subjects following anterior cruciate ligament reconstruction (ACLR) (n = 72)
| |
|
KOOS subscales |
||||
|---|---|---|---|---|---|---|
| Pain | Symptoms | ADL | Sport/Rec | QOL | ||
| SF-36 subscales |
PF |
0.68 |
0.45 |
0.65* |
0.67* |
0.64 |
| RP |
0.56 |
0.29 |
0.47 |
0.50 |
0.43 |
|
| |
BP |
0.66* |
0.41 |
0.54 |
0.51 |
0.51 |
| |
GH |
0.38 |
0.18 |
0.38 |
0.33 |
0.39 |
| |
VT |
0.38 |
0.21 |
0.35 |
0.32 |
0.36 |
| |
SF |
0.38 |
0.23 |
0.38 |
0.33 |
0.25 |
| |
RE |
0.22 |
0.12 |
0.20 |
0.25 |
0.17 |
| MH | 0.17 | 0.08 | 0.12 | 0.10 | 0.14 | |
Abbreviations: ADL Activities of daily living, QOL Quality of life, PF Physical functioning, RP Role-physical, BP Bodily pain, GH General health, VT Vitality, SF Social functioning, RE Role-emotional, MH Mental health.
* As hypothesized, expected correlations were above 0.35 for a priori hypotheses 1-3.
As hypothesized, correlations between KOOS subscales and SF-36 subscales better representing Mental Health (bolded in table) were lower than between KOOS subscales and SF-36 subscales better representing Physical Health (a priori hypothesis 4).