Table 1 Clinical characteristics of pediatric patients

Age (years, [SD])

3.5 years [3.6]

Sex

 Male

32 (67%)

 Female

16 (33%)

Race

 White/Caucasian

37 (77%)

 Black/African American

8 (17%)

 Multi-racial/Other

3 (6%)

 BMI percentile (mean [SD])

51.6 [35]

Prematurity (gestational age at birth)

 At term

18 (38%)

 32–37 weeks (moderate/late preterm)

18 (38%)

 29–32 weeks (very preterm)

4 (8%)

 < 28 weeks (extremely preterm)

8 (16%)

Primary clinical indications for DLB

 Recurrent croup

8 (17%)

 Stridor

8 (17%)

 Part of other procedure

6 (13%)

 Surveillance following airway surgery

5 (10%)

 Aspiration

5 (10%)

 Tracheal obstruction/lesion

4 (8%)

 Supraglottic obstruction/lesion

4 (8%)

 Dysphonia

4 (8%)

 Subglottic obstruction/lesion

3 (6%)

 Failure to extubate

1 (2%)