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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Pediatr Cardiol. 2014 Dec 18;36(4):796–801. doi: 10.1007/s00246-014-1087-z

Table 1.

Demographic characteristics of matched groups

VPSa TOFb P-value
Number of subjects 19 16
Age at testing 15.3 ± 3.6 14.3 ± 2.8 0.40
Males (%) 63 56 0.72
Race White (%) 75 94 0.14
Age at procedure (years)c 1.2 ± 1.5 0.5 ± 0.41 0.11
Years of exposure to PIc 14 ± 4.1 14 ± 2.7 1.0
a

VPS = valvar pulmonary stenosis

b

TOF = tetralogy of Fallot

c

Non-significant P values reflect adequate matching by years of exposure to PI.