Table 4.

Relations of Hemodynamic Indices to Body Surface Area in the reference sample before and after allometric indexation and ratiometric indexation.

Hemodynamic Index	Association, Non- indexed Parameters		P value for BSA*Gender	Residual Association, Allometric Indices *		Residual Association, Ratiometric Indices *
	R	P value	Interaction †	R	P value	R	P value
Stroke Volume, mL	0.57	<0.0001	0.89	0.007	0.86	0.05	0.23
Cardiac Output, mL/min	0.40	<0.0001	0.51	0.006	0.89	−0.009	0.82
Heart Rate, bpm	0.26	<0.0001	0.48	−0.002	0.94	−0.35	<0.0001
SVR, dyn·s/cm5	0.37	<0.0001	0.50	0.01	0.69	0.04	0.32
Aortic Zc, mmHg·s/mL	0.30	<0.0001	0.29	0.005	0.85	0.09	0.02
Total Arterial Compliance, mmHg/mL	0.48	<0.0001	0.28	0.002	0.95	0.02	0.70
Stroke Volume /Pulse Pressure, mmHg/mL	0.43	<0.0001	0.23	0.004	0.92	−0.02	0.61
Ea, mmHg/mL	0.51	<0.0001	0.89	0.012	0.76	−0.04	0.28
Ees, mmHg/mL	0.51	<0.0001	0.80	−0.002	0.96	−0.02	0.72
Central Augmentation Index. %	0.39	<0.0001	0.95	−0.007	0.86	0.23	<0.0001
Time to Inflection Point, sec	0.49	<0.0001	0.16	−0.005	0.89	0.24	<0.0001

^*Gender-independent linear correlation between body surface area-normalized variables and body surface area

^†From log-log models