Table 3.

Distribution of the PAS score for secondary penetration and aspiration due to stases

Penetration–aspiration score	Number of patients
1. Material does not enter the airway	16
2. Material enters the airway, remains above the vocal folds, and is ejected from the airway	1
3. Material enters the airway, remains above the vocal folds, and is not ejected from the airway	1
4. Material enters the airway, contacts the vocal folds, and is ejected from the airway	1
5. Material enters the airway, contacts the vocal folds, and is not ejected from the airway	0
6. Material enters the airway, passes below the vocal folds, and is ejected into the larynx or out of the airway	0
7. Material enters the airway, passes below the vocal folds, and is not ejected from the trachea despite effort	0
8. Material enters the airway, passes below the vocal folds, and no effort is made to eject	2