“…6,[8][9][10][11][12] However, most studies have focused on the indications for tracheostomy, the subsequent outcomes, or resource utilization. 6,[10][11][12][13][14][15][16][17][18][19][20][21][22] Data are scant regarding the epidemiological risk factors for tracheostomy in CHD, and there have been no large-scale population-based studies. Furthermore, among infants with CHD requiring a tracheostomy, previous studies have failed to investigate either the overall mortality risk or the mortality risk stratified by a follow-up period.…”