Structural relations between DSM-5 PTSD and major depression symptoms in military soldiers.
BACKGROUND
Posttraumatic stress disorder (PTSD) and major depressive disorder (MDD) are frequently comorbid. One explanation for this comorbidity is that PTSD has a constellation of "dysphoria" symptoms resembling depression.


METHOD
Using confirmatory factor analysis we tested the role of DSM-5 PTSD׳s dysphoria factor in relation to MDD symptom dimensions of somatic and non-somatic psychopathology. 672 Ohio National Guard soldiers completed DSM-5 measures of PTSD and MDD symptoms in an epidemiological study.


RESULTS
Results indicated that in contrast to other PTSD factors, PTSD׳s dysphoria factor was more related to MDD׳s somatic and non-somatic factors.


LIMITATIONS
Limitations include generalizability to the epidemiological population of trauma-exposed military veterans rather than civilians, and reliance on self-report measures.


CONCLUSIONS
Implications concerning clinical psychopathology and comorbidity of PTSD are discussed, including whether PTSD should be refined by removing its non-specific symptoms.
['Elhai|Jon D|JD|', 'Contractor|Ateka A|AA|', 'Tamburrino|Marijo|M|', 'Fine|Thomas H|TH|', 'Cohen|Gregory|G|', 'Shirley|Edwin|E|', 'Chan|Philip K|PK|', 'Liberzon|Israel|I|', 'Calabrese|Joseph R|JR|', 'Galea|Sandro|S|']
D000328:Adult D015897:Comorbidity D003865:Depressive Disorder, Major D039721:Diagnostic and Statistical Manual of Mental Disorders D005163:Factor Analysis, Statistical D005260:Female D006801:Humans D008297:Male D008875:Middle Aged D008889:Military Personnel D009820:Ohio D013313:Stress Disorders, Post-Traumatic
DSM-5 Posttraumatic stress disorder Major depressive disorder Comorbidity Factor analysis Military veterans