A nursing instructor is describing the prevalence of sleep-wake disorders as being greater among ...

Ans: A, D
Sleep-wake disorders occur independent of a diagnosis of other mental disorders, but they also occur in people with mental disorders. For example, a core feature of posttraumatic stress disorder (PTSD) is sleep disturbance. Insomnia often increases the risk for relapse of the mental disorder. Documented comorbid conditions include cardiovascular disorders, diabetes, musculoskeletal disorders, respiratory disorders, digestive disorders, pain conditions, and mental disorders including depression, PTSD, and other sleep disorders such as sleep apnea and restless legs syndrome. Obstructive sleep apnea is not associated with borderline personality disorder or schizophrenia.