Table 4.

Predictors of BSA-Adjusted LV Mass

Parameter	Coefficient	r 2	P Value
Univariate analysis
Age at CMR, years	0.09	0.005	0.49
Male gender	15.41	0.34	<0.0001
Age at repair, years	0.14	0.01	0.28
Second arch procedure	−6.57	0.06	0.02
Ventricular septal defect	−1.75	0.003	0.64
Bicommissural aortic valve	−0.39	0.002	0.89
Arm-leg SBP gradient, mm Hg	0.01	0.002	0.89
Arm-leg SBP gradient at peak exercise, mm Hg	0.05	0.01	0.48
Increase in right arm SBP with exercise, mm Hg	0.13	0.3	0.004
Right arm hypertension (>220 mm Hg) during exercise	10.62	0.08	0.02
TAA/DAO diameter ratio	−9.52	0.01	0.26
TAA CSA/BSA, cm2/m2	0.07	0.04	0.06
Isthmus/DAO diameter ratio	4.85	0.009	0.37
Multivariable analysis (model r2=0.37)
Male gender	13.5	N/A	<0.0001
Increase in right arm SBP during exercise, mm Hg	0.14	N/A	0.02

BSA indicates body-surface area; CMR, cardiac magnetic resonance study; CSA, cross-sectional area; DAO, descending aorta; LV, left ventricle; N/A, not applicable; SBP, systolic blood pressure; TAA, transverse aortic arch.