| Model | ||||
---|---|---|---|---|---|
 | A | B | C | D | E |
Intercept | 0.900‡ | 0.886‡ | 0.747‡ | 0.691‡ | -0.347 |
total WOMAC | -0.009‡ |  | 0.001 |  | -0.001 |
pain | Â | -0.012 | Â | -0.009 | Â |
stiffness |  | 0.006 |  | 0.092†|  |
functioning |  | -0.009‡ |  | -0.005 |  |
pain* stiffness | Â | Â | Â | -0.005 | Â |
pain*functioning | Â | Â | Â | -0.001 | Â |
stiffness*functioning | Â | Â | Â | 0.001 | Â |
pain2 | Â | Â | Â | 0.002 | Â |
stiffness2 | Â | Â | Â | -0.011 | Â |
functioning2 | Â | Â | Â | 0.000 | Â |
total WOMAC2 |  |  | -0.000‡ |  | -0.000†|
age | Â | Â | Â | Â | 0.033* |
age2 | Â | Â | Â | Â | 0.000 |
sex (if Female) | Â | Â | Â | Â | 0.048 |
Range of predicted scores | 0.086 to 0.900 | 0.086 to 0.900 | -0.235 to 0.748 | -0.111 to 0.852 | -0.184 to 0.828 |
MAE | 0.148 | 0.147 | 0.140 | 0.146 | 0.129 |
Adjusted r2 | 0.275 | 0.274 | 0.296 | 0.299 | 0.313 |
RMSE | 0.189 | 0.187 | 0.185 | 0.190 | 0.180 |