Table 2.

Exercise Capacity, Functional Status, Arterial Oxygen Saturation, and Mean Systemic Arterial Pressure in the 3 Groups at Baseline and 12 Weeks

	ASD			VSD			PDA
	Baseline	12 Weeks	P	Baseline	12 Weeks	P	Baseline	12 Weeks	P
6MWD, m	377.2 ± 68.7	436.0 ± 70.4	<0.001	371.2 ± 66.0	413.7 ± 83.1	0.006	384.3 ± 90.2	440.9 ± 71.8	0.006
Borg dyspnea index	2.6 ± 1.3	1.8 ± 1.0	0.041	2.6 ± 1.5	2.4 ± 1.5	0.496	2.2 ± 1.4	1.9 ± 1.5	0.647
WHO functional class	2.3 ± 0.5	2.1 ± 0.6	0.189	2.3 ± 0.4	1.8 ± 0.6	0.002	2.3 ± 0.6	1.8 ± 0.5	0.029
SaO2, %a	90.98 ± 5.04	93.26 ± 2.95	0.019	88.93 ± 4.83	89.31 ± 5.09	0.748	86.49 ± 3.88b	87.31 ± 4.60	0.598
MAP, mm Hg	87.82 ± 10.74	86.60 ± 7.31	0.631	84.54 ± 7.14	85.03 ± 10.03	0.809	86.48 ± 10.47	82.42 ± 11.79	0.082

Abbreviations: 6MWD, 6‐minute walk distance; ASD, atrial septal defects; MAP, mean systemic arterial pressure; PDA, patent ductus arteriosus; VSD, ventricular septal defects; SaO₂, arterial oxygen saturation; WHO, World Health Organization.

^aASD group, n = 13; VSD group, n = 16; and PDA group, n = 11.

^bSignificant compared with ASD group at baseline, P = 0.024.