Table 2 Demographic and clinical characteristics in rTOF with normal and subnormal exercise capacity

Age, years

29 ± 9

32 ± 13

0.243

Gender, Male/Female

12/10

27/26

0.805

Body surface area, m²

1.8 ± 0.2

1.6 ± 0.2

0.012

Diastolic blood pressure, mmHg

71 ± 11

71 ± 9

0.809

Systolic blood pressure, mmHg

120 ± 14

121 ± 17

0.719

Heart rate, bpm

78 ± 12

78 ± 16

0.964

Cardiopulmonary exercise testing

 METs

8.3 ± 1.6

6.3 ± 1.5

< 0.001

 PVO₂, ml/kg/min

29.0 ± 5.7

22.1 ± 5.3

< 0.001

 % predicted PVO₂

96.7 ± 10.2

69.9 ± 10.5

< 0.001

CMR: right ventricle

 RVEDVI, ml/m²

158 ± 24

135 ± 30

0.002

 RVESVI, ml/m²

87 ± 14

73 ± 19

0.002

 RVSVI, ml/m²

72 ± 15

62 ± 16

0.022

 RVEF, %

45 ± 5

46 ± 6

0.512