Primary analysis
palate, epiglottis
REGRESSION, COLLAPSE
Fifty-four breath segments were associated with collapse (defined as ≥ 50% narrowing) of the soft palate, 47 with collapse of the lateral walls, 47 with collapse of the tongue base, and 26 with collapse of the epiglottis. Increasing P
Linear mixed regression analysis correlating mask pressure and upper airway dimensionsSeparate linear models were fitted for each upper airway level with random patient effect to account for non-independence of the observations.
Example of CPAP-induced epiglottis collapse
Effect of CPAP in subjects with epiglottis collapse The first subject developed epiglottis collapse starting from a P