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. Author manuscript; available in PMC: 2014 Oct 17.
Published in final edited form as: Laryngoscope. 2011 Aug 31;121(11):2381–2390. doi: 10.1002/lary.21406

Table I.

Functional Outcome Swallowing Scale (FOSS)7

Stage Symptoms
0 Normal function and asymptomatic.
1 Normal function with episodic or daily symptoms of dysphagia.
2 Compensated abnormal function manifested by considerable dietary modifications or prolonged mealtime (without weight loss or aspiration).
3 Decompensated abnormal function with weight loss of 10% of body weight over 6 months owing to dysphagia; or daily cough, gagging, or aspiration during meals.
4 Severely decompensated abnormal function with weight loss of 10% of body weight over 6 months owing to dysphagia; or severe aspiration with bronchopulmonary complications. Non-oral feeding for most nutrition.
5 Non-oral feeding for all nutrition.