Table 5.

Prediction of Cognitive Functioning Scale total score by the 4 clusters (N = 169)

Cluster	R2	Adjusted R2	Std. Error of the Estimate	R2 Change	Sig. F, Change
1. Sociodemograpic	0.08	0.07	40.27	8%	<0.01*
2. Clinical	0.10	0.05	40.30	1%	0.77
3. Physical	0.29	0.24	30.86	19%	<0.01*
4. Mental	0.44	0.39	30.45	16%	<0.01*
		Unstandardized Coefficients		Standardized Coefficients
Variables of final model (4)		B	Std. Error	Beta	Sig.
(Constant)		26.73	4.55		<0.01*
Sex		−2.14	0.57	−0.24	<0.01*
Age		0.00	0.03	0.01	0.89
Education		−0.02	0.56	0.00	0.97
Hemisphere		−0.81	0.59	−0.09	0.17
Antiepileptic drugs		−0.44	0.69	−0.04	0.53
Radiotherapy		−0.27	0.57	−0.03	0.64
Chemotherapy		−1.44	1.02	−0.10	0.16
Disease duration		0.02	0.05	0.03	0.67
SF-36 physical component summary score		0.03	0.04	0.07	0.38
QLQ BN-20 visual disorder		−0.01	0.19	−0.01	0.94
QLQ BN-20 motor dysfunction		−0.81	0.23	−0.28	<0.01*
SF-36 Mental component summary score		0.09	0.03	0.21	0.01*
MFI mental fatigue		−0.30	0.09	−0.25	<0.01*
QLQ BN-20 communication deficit		−0.55	0.16	−0.25	<0.01*
QLQ BN-20 future uncertainty		0.29	0.13	0.19	0.02*

Abbreviations: MFI, Multidimensional Fatigue Inventory; QLQ BN-20, Brain cancer specific Quality of Life Questionnaire; SF-36, Medical Outcomes Study Short-Form 36; Std., standard; Sig., significant.