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Table 1 Functional Oral Intake Scale (FOIS) [17]

From: Early intervention to promote oral feeding in patients with intracerebral hemorrhage: a retrospective cohort study

Level 1: Nothing by mouth.
Level 2: Tube dependent with minimal attempts of food or liquid.
Level 3: Tube dependent with consistent oral intake of food or liquid.
Level 4: Total oral diet of a single consistency.
Level 5: Total oral diet with multiple consistencies, but requiring special preparation or compensations.
Level 6: Total oral diet with multiple consistencies without special preparation, but with specific food limitations.
Level 7: Total oral diet with no restrictions.