Variable No Intervention (N=293) Intervention (N=16) p-value
Male 104 (35%) 5 (31%) 0.7
Complex transposition 100 (93%) 8 (7%) 0.2
Balloon atrial septostomy 160 (94%) 11 (6%) 0.3
Surgeon A 97 (96%) 4 (4%) 0.8
Surgeon B 158 (94%) 10 (6%) 0.8
Surgeon C 38 (95%) 2 (5%) 0.8