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. 2015 Jun 25;4(7):e001978. doi: 10.1161/JAHA.115.001978

Table 3.

Predictors of SBP Response to Exercise

Parameter Coefficient r 2 P Value
Univariate analysis
 Age at CMR, y −0.22 0.01 0.54
 Male gender 11.36 0.05 0.12
 Age at repair, y −0.22 0.01 0.55
 Second arch procedure −11.00 0.04 0.14
 Ventricular septal defect −2.46 0.01 0.80
 Bicommissural aortic valve −0.53 0.01 0.94
 Arm-leg SBP difference, mm Hg 0.04 0.09 0.02
 Exercise Arm-leg SBP difference, mm Hg 0.51 0.29 <0.0001
 TAA/DAO diameter ratio −56.04 0.11 0.006
 TAA CSA/BSA, cm2/m2 −0.04 0.03 0.66
 Isthmus/DAO diameter ratio 0.16 0.01 0.6
Multivariable analysis (model r2=0.36)
 Arm-leg SBP difference at peak exercise, mm Hg 0.48 N/A <0.0001
 TAA/DAO diameter ratio −43.61 N/A 0.03

BSA indicates body-surface area; CMR, cardiac magnetic resonance study; CSA, cross-sectional area; DAO, descending aorta; SBP, systolic blood pressure; TAA, transverse aortic arch.