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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Hypertension. 2010 Sep 27;56(5):920–925. doi: 10.1161/HYPERTENSIONAHA.110.160549

Table 3.

Summary of Forward Stepwise Regression Analyses.

Dependent Variable: Effective Reflecting Distance
Independent Variable β P-level Accumulative R2
Δaortic PWV-leg PWV, cm/sec 0.54 <0.0001 0.57
Ascending aortic length, mm 0.31 <0.0001 0.72
MAP, mmHg 0.39 <0.0001 0.76
Heart rate, beat/min −0.13 <0.0001 0.78
Sex, female=0 0.08 <0.05 0.79
Dependent Variable: Aortic Pulse Pressure
Independent Variable β P-level Accumulative R2
MAP, mmHg 0.60 <0.0001 0.42
Heart rate, beat/min −.32 <0.0001 .48
Aortic PWV, cm/sec 1.07 <0.0001 0.49
ERD, mm −0.87 <0.01 0.49
Tref, sec 0.49 <0.01 0.51

PWV=pulse wave velocity, MAP=mean arterial pressure, Tref=time of return of reflected wave evaluated with the cross-correlation method, ERD=effective reflecting distance.