. 2015 Mar 3;2(1):20–31. doi: 10.1093/nop/npu035

Table 3.

Prediction of attention and executive factor by the 4 clusters (N = 169)

Cluster	R²	Adjusted R²	Std. Error of the Estimate	R² change	Sig. F change
1. Sociodemographic	0.11	0.09	0.94	11%	<0.01*
2. Clinical	0.23	0.20	0.88	13%	<0.01*
3. Physical	0.27	0.21	0.87	3%	0.08
4. Mental	0.29	0.23	0.87	3%	0.18
		Unstandardized Coefficients		Standardized Coefficients
Variables of final model (4)		B	Std. Error	Beta	Sig.
(Constant)		2.23	1.14		0.05
Sex		−0.12	0.14	−0.06	0.42
Age		−0.02	0.01	−0.23	<0.01*
Education		0.45	0.14	0.23	<0.01*
Hemisphere		0.38	0.15	0.19	0.01*
Antiepileptic drugs		−0.29	0.17	−0.12	0.09
Radiotherapy		−0.09	0.14	−0.04	0.55
Chemotherapy		−0.51	0.26	−0.15	0.05
Disease duration		−0.01	0.01	−0.05	0.51
SF-36 physical component summary score		−0.01	0.01	−0.12	0.18
QLQ BN-20 visual disorder		−0.01	0.05	−0.01	0.91
QLQ BN-20 motor dysfunction		−0.06	0.06	−0.09	0.32
SF-36 mental component summary score		0.01	0.01	0.07	0.45
MFI mental fatigue		−0.01	0.02	−0.04	0.62
QLQ BN-20 communication deficit		−0.09	0.04	−0.18	0.03*
QLQ BN-20 future uncertainty		0.01	0.03	0.03	0.73

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.