Table 3.

Observed R² Values for Selected Covariates and Incremental R² Values for the Cognitive Function Measures With Significant Relationships

PAOF	COGNITIVE FUNCTION MEASURE	R2 COVARIATES ONLY*	INCREMENTAL R2†
Memory	Four-Word Short-Term Memory, 5 s	0.283	0.156
	Rey Complex Figure, Immediate Recall	0.257	0.160
Use of hands	Digit Symbol Substitution	0.405	0.128
	Trail-Making Test-A time	0.291	0.154
	Trail Making Test-B time	0.260	0.160
	Four-Word Short-Term Memory, 5 s	0.283	0.156
	Four-Word Short-Term Memory, 15 s	0.194	0.175
	Four-Word Short-Term Memory, 30 s	0.181	0.177
Executive function	Four-Word Short-Term Memory, 15 s	0.194	0.175
	Rivermead Story, Immediate Recall	0.235	0.164
	Rivermead Story, Delayed Recall	0.200	0.173
Language	Trail Making Test-B time	0.260	0.160
Total score	Four-Word Short-Term Memory, 15 s	0.194	0.175
	Four-Word Short-Term Memory, 30 s	0.181	0.177
	Rey Complex Figure, Immediate Recall	0.257	0.160
	Rey Complex Figure, Delayed Recall	0.273	0.158

Abbreviations: R² = incremental effect size; PAOF = Patient’s Assessment of Own Functioning

^*Covariates only: age, education, time on hormonal therapy, fatigue, anxiety, depression, and type of hormonal therapy

^†Incremental effect size (R²) for the particular cognitive function measure with a sample size of 31 at a significance level of 0.05, based on the changes in R² with the addition of the PAOF score of interest where the covariates were controlled