Table 3. Alpha amylase results.

	No microaspiration n = 27	Microaspiration n = 55	Abundant microaspiration n = 27	p value
Mean α-amylase
Median (IQR)	3075 (1526–12796)# , §	22190 (4799–81443)	9771 (2100–60672)	0.001
Mini-Max	120–172466	146–635068	86–475660
% of tracheal aspirateswith α-amylase >1685 UI/*
Median (IQR)	62 (9–100)# , §	100 (83–100)	100 (31–100)	0.011
Mini-Max	0–100	0–100	0–100

^#p<0.05 versus microaspiration.

^§p<0.05 versus abundant microaspiration.

*Youden’s index.