ADA and laryngotracheoesophageal cleft: Compared to that of the group with the lowest ADA level (Q1), the OR values for the risk of developing LC in the Q2, Q3, and Q4 groups were 11.465 (6.390–20.573), 9.616 (5.563–16.624), and 10.975 (6.206–19.408), respectively, and the adjusted OR values were 12.991 (6.261–26.957), 11.456 (5.723–22.933), and 11.350 (5.443–23.667), respectively.