Table 3.
Results of forward, backward, and stepwise OLS multiple regressions of the difference between actual and predicted elapsed time during chemotherapy with VR immersion on demographic and clinical independent variables
| Regression method | Independent variables included in model | β | SE | F | Prob>F | Model R2 |
|---|---|---|---|---|---|---|
| Forward selection | Breast cancer | 15.25 | 5.81 | 6.89 | 0.0097 | |
| Colon cancer | 13.09 | 7.59 | 2.98 | 0.0868 | ||
| Male gender | −11.98 | 7.46 | 2.57 | 0.1112 | ||
| Anxiety (STAI) | −0.20 | 0.16 | 1.54 | 0.2163 | ||
| Model characteristics | df=(4,131) | 5.06 | 0.0008 | 0.134 | ||
| Backward selection | Breast cancer | 19.62 | 5.06 | 15.04 | 0.0002 | |
| Colon cancer | 8.39 | 7.06 | 1.41 | 0.2372 | ||
| Model characteristics | df=(2,133) | 8.14 | 0.0005 | 0.109 | ||
| Stepwise selection | Breast cancer | 15.29 | 5.82 | 6.89 | 0.0097 | |
| Colon cancer | 12.63 | 7.59 | 2.77 | 0.0986 | ||
| Male gender | −11.02 | 7.44 | 2.20 | 0.1408 | ||
| Model characteristics | df=(3,132) | 6.20 | 0.0006 | 0.124 | ||