Table 4.
Linear regression models.
| Model | Dependent variable | Independent variables | Coefficient | SE | p Values |
|---|---|---|---|---|---|
| 1 | PCS | Tipology of convivent | −5.525 | 2.365 | .022 |
| (F = 6.723; p = .001; R2=0.890) | Age-adjusted Charlson index | −1.463 | 0.291 | .000 | |
| Dialysis age (years) | 0.516 | 0.222 | .022 | ||
| iPTH | 4.861 | 1.660 | .004 | ||
| PSQI | −3.897 | 2.111 | .068 | ||
| 2 | MCS | Ferritin | 2.944 | 1.718 | .090 |
| (F = 10.731; p = .001; R2=0.512) | Tipology of convivent | −5.910 | 2.149 | .007 | |
| Work status | −4.249 | 1.804 | .02 | ||
| TCI-R harm avoidance | 0.159 | 0.048 | .001 | ||
| TCI-R persistance | −0.083 | 0.041 | .05 | ||
| Dialysis age (years) | 0.117 | 0.066 | .05 | ||
| CISS-avoidance | 0.226 | 0.074 | .003 | ||
| CISS-task | 0.312 | 0.061 | .000 | ||
| iPTH | 3.890 | 1.574 | .002 | ||
| PSQI | 6.615 | 1.827 | .000 | ||
| Erithropoetin (dose needed) | 2.818 | 1.689 | .099 | ||
| Phosphate | −2.089 | 1.443 | .151 |
p Values in bold, being <0.05, refer to each statistically significant association between variables.
PCS: physical component summary; MCS: mental component summary; TCI-R: Temperament and Character Revised; PSQI: Pittsburgh Sleep Quality Index.