Preliminary observation of speech disorder in obstructive and mixed sleep apnea.

Clinical observation suggested that speech disorder seemed to be associated with sleep apnea. We recorded a standard speech sample from 39 matched subjects in three groups, 13 sleep apnea individuals, 13 subjects with COPD, and 13 subjects without sleep apnea or COPD. Three speech pathologists in a single blind listening task of the recorded samples judged whether or not speech disorder was present. Eight of the sleep apnea subjects were judged to have disordered speech compared to three of the COPD group and one of the non-sleep apnea, non-COPD (normal) group. These results were statistically significant. This supports a clinical impression that speech disorder is more common in sleep apnea than expected. There may be common anatomic and physiologic disturbances present between the two conditions, and perhaps disordered speech is a sign of sleep apnea.

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