Fatigue, barriers to physical activity and predictors for motivation to exercise in advanced Cancer patients

BMC Palliative Care

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
Physically Active Behavior (R² = 0.483; f = 0.97)^a	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]

ISSN: 1472-684X