AMA Criteria for Impairment Associated with Aphasia or Dysphasia

The level of impairment associated with aphasia or dysphasia can be estimated based on the AMA criteria.

Parameters:

(1) comprehension

(2) ability to communicate

Comprehension	Ability to Communicate	Percent Whole Person Impairment
normal	normal	0%
minimal disturbance	minimal disturbance	0 - 9%
moderate impairment	moderate impairment	10 – 24%
can comprehend nonverbal communication	produces unintelligible or inappropriate language	25 – 39%
unable to comprehend verbal or nonverbal communication	unable to communicate	40 – 60%

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