Table 4 Stepwise multiple regression analysis of variables related to health-related quality of life
Model | B | S.E. | β | P | R 2 | |
|---|---|---|---|---|---|---|
Physical summary score | ||||||
1 | age | -.583 | .284 | -.168 | .042 | .028 |
2 | age | -.463 | .268 | -.134 | .086 | .150 |
Number of limited joints | -1.340 | .296 | -.350 | .000 | ||
3 | age | -.475 | .265 | -.137 | .075 | .176 |
Number of limited joints | -1.145 | .306 | -.299 | .000 | ||
Number of active joints | -1.094 | .510 | -.170 | .034 | ||
4 | age | -.586 | .263 | -.169 | .027 | .214 |
Number of limited joints | -1.058 | .302 | -.276 | .001 | ||
Number of active joints | -1.064 | .500 | -.166 | .035 | ||
MTX administration route | -5.691 | 2.181 | -.198 | .010 | ||
5 | age | -.200 | .325 | -.058 | .539 | .235 |
Number of limited joints | -1.023 | .299 | -.267 | .001 | ||
Number of active joints | -1.002 | .496 | -.156 | .045 | ||
MTX administration route | -4.756 | 2.210 | -.165 | .033 | ||
MTX current weekly dose | -.572 | .289 | -.185 | .050 | ||
6 | age | .023 | .317 | .007 | .941 | .305 |
Number of limited joints | -1.084 | .287 | -.283 | .000 | ||
Number of active joints | -.874 | .476 | -.136 | .068 | ||
MTX administration route | -3.892 | 2.126 | -.135 | .069 | ||
MTX current weekly dose | -.495 | .277 | -.160 | .077 | ||
feel sick after taking MTX | -7.951 | 2.121 | -.278 | .000 | ||
Psychosocial summary score | ||||||
1 | feel sick after taking MTX | -5.624 | 1.976 | -.230 | .005 | .053 |
2 | feel sick after taking MTX | -5.338 | 1.940 | -.218 | .007 | .097 |
anxious about blood tests | -5.347 | 2.027 | -.209 | .009 | ||