OBJECTIVE: Patients with post-traumatic stress disorder (PTSD) are frequently diagnosed with other psychiatric comorbid conditions. This study tested the hypothesis that PTSD patients suffer a greater proportion of sleep problems according to comorbid diagnoses. METHOD: National Comorbidity Survey (NCS) data from 591 individuals diagnosed with PTSD were analyzed. Revised versions of the Diagnostic Interview Schedule and Composite International Diagnostic Interview were administered to a representative sample of males and females. Groups consisted of patients diagnosed with lifetime PTSD and with current comorbid panic disorder, major depressive disorder, generalized anxiety disorder, and alcohol dependence. RESULTS: Patients diagnosed with PTSD/panic disorder reported a significantly greater proportion of nightmare complaints (96%) and insomnia (100%) compared with the other comorbid groups. CONCLUSIONS: A greater proportion of PTSD patients with comorbid panic disorder complain of sleep-related problems than other comorbid groups. This effect appears unique to panic, rather than other general anxiety disorder or depression. Prospective sleep studies are needed to differentiate the role of sleep in PTSD and PD, as well as to examine the role of psychiatric comorbidity in worsening sleep in PTSD patients. Copyright 2002 Elsevier Science Ltd.
OBJECTIVE:Patients with post-traumatic stress disorder (PTSD) are frequently diagnosed with other psychiatric comorbid conditions. This study tested the hypothesis that PTSDpatients suffer a greater proportion of sleep problems according to comorbid diagnoses. METHOD: National Comorbidity Survey (NCS) data from 591 individuals diagnosed with PTSD were analyzed. Revised versions of the Diagnostic Interview Schedule and Composite International Diagnostic Interview were administered to a representative sample of males and females. Groups consisted of patients diagnosed with lifetime PTSD and with current comorbid panic disorder, major depressive disorder, generalized anxiety disorder, and alcohol dependence. RESULTS:Patients diagnosed with PTSD/panic disorder reported a significantly greater proportion of nightmare complaints (96%) and insomnia (100%) compared with the other comorbid groups. CONCLUSIONS: A greater proportion of PTSDpatients with comorbid panic disorder complain of sleep-related problems than other comorbid groups. This effect appears unique to panic, rather than other general anxiety disorder or depression. Prospective sleep studies are needed to differentiate the role of sleep in PTSD and PD, as well as to examine the role of psychiatric comorbidity in worsening sleep in PTSDpatients. Copyright 2002 Elsevier Science Ltd.
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