Table 4.

Hierarchical multiple linear regression analysis for predictors of Seattle Angina Questionnaire Physical Function Score (n=134)

	Beta	% Change in R²	Total R²	F
Block 1		19.5%^***
Age	−0.13
Sex	0.07
Hollingshead Score	−0.24^**
Co-morbidity Index	−0.08
Block 2		11.1%^***
Chest pain frequency	−0.17^*
Block 3		13.0%^***
Fatigue	−0.26^**
Dyspnea	−0.24^**
			43.7%	14.0^***
			Adjusted R² 40.6%

Note: Beta weights presented are those obtained at entry of the final block.

p < .05

^**

p < .01

^***

p < .001. Stepwise entry demonstrated that none of the symptom interaction terms significantly increased R² and thus did not enter the regression analysis.