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Table 1 Age distribution in different laryngeal causes of respiratory distress in infants

From: Etiological profile of upper airway obstruction in infants

Laryngeal causes 1–6 months
(n = 46)
6 months to 1 year
(n = 23)
1 year to 2 years
(n = 11)
P value
No. A.1.1.1.1.1.1.5. % A.1.1.1.1.1.1.4. No. A.1.1.1.1.1.1.3. % A.1.1.1.1.1.1.2. No. A.1.1.1.1.1.1.1. %  
Laryngomalacia 36 78.4 16 69.5 4 36.4 (MCP = 0.257)
Subglottic stenosis 2 4.3 5 21.7 7 63.6
Laryngeal web 6 13 0 0 0 0
Vocal fold paralysis 2 4.3 2 8.8 0 0
  1. MCP Monte Carlo exact p value with confidence interval 95%