Related Experiment Video
Updated: Aug 19, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
Clinical correlates of poor sleep quality in posttraumatic stress disorder
Anne Germain1, Daniel J Buysse, M Kathy Shear
1Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA. germaina@upmc.edu
Abstract:
Sleep disturbances (SD) are a core clinical feature of PTSD. The goal of the study was to determine the influence of patient-related characteristics, disorder-related characteristics, and psychiatric comorbidity on the severity of SD in PTSD outpatients (n = 367) who were not recruited for a sleep study. Increased severity of SD paralleled increasing overall PTSD severity. The severity of SD did not differ according to gender, age groups, types of trauma, PTSD chronicity, or psychiatric comorbidity. Results suggest that age, gender, and psychiatric comorbidity have minimal impact on sleep quality in this PTSD sample. The inclusion of PTSD patients who were not specifically seeking treatment for SD reinforces the study findings.
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