Table 3.
Predictors of Physically Active Behavior and Motivation for Physical activity
| Dependent variable Significant predictors beta Wald p | ||||
|---|---|---|---|---|
| Physically Active Behavior (R2 = 0.483; f = 0.97)a | 1. Motivation for PA | 1.044 | 7.76 | 0.005 |
| 2. Duration since metastatic cancer (months) | 0.026 | 5.68 | 0.017 | |
|
Independent variables in the regression models: age, sex, ECOG ≥2, number of comorbidities, tumor type (breast cancer vs. others), PA before cancer diagnosis, Interest in exercise program and knowledge about PA and QoL Quality of regression model: p < 0.001; χ2 = 48.4 | ||||
| Motivation for PA (R2 = 0.685; f = 1.47)a | 1. Fatigue b | -2.301 | 7.03 | .008 |
| 2. Clinically relevant depression c | -1.390 | 4.25 | .039 | |
| 3. Knowledge about PA and QoL | .929 | 9.20 | .002 | |
| 4. PA before cancer diagnosis | .688 | 7.89 | .005 | |
| 5. Interest in exercise program | .635 | 6.97 | .008 | |
|
Independent variables in the regression models: age, sex, ECOG-Performance status ≥2, number of comorbidities, tumor type (breast cancer vs. others) Quality of regression model: p < 0.001; χ2 = 87.9 | ||||
Abbreviations: ECOG Eastern Co-operative Oncology Group performance index, PA physical activity, QoL quality of life
a R2 = Explained variance; f = Effect size according to Cohen;
b FACT-F Score ≤ 34: cut-off point for diagnosis of cancer related fatigue [32]
c PHQ8-Score ≥ 10 points to clinically relevant depression [35]