Table 3.

Coefficients, correlation and multiple r squared values of the original and the reduced linear models for OCS 9 point and OCS 13 point groups

		Dimension 1 (exercise tolerance)	Dimension 2 (speech)	Dimension 3 (cooperation)	Dimension 4 (cyanosis)	Dimension 5 (SpO2)	Dimension 6 (breathing)	Dimension 7 (heart rate/rhythm)	Correlation coefficients	Multiple r squared
OCS 9 points	Original	0.089	0.117	0.323*	0.418**	0.310	0.211	0.117	0.545	0.628
	Reduced	-	-	0.365*	0.446**	0.418**	0.340**	-	0.541	0.623
OCS 13 points	Original	0.500**	−0.003	0.422	0.582**	0.555**	0.330	0.082	0.550	0.708
	Reduced	0.603**	-	0.522*	0.690**	0.625**	-	-	0.540	0.703

*p < 0.01, and **p < 0.001