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Structural relations between DSM-5 PTSD and major depression symptoms in military soldiers

2015; Elsevier BV; Volume: 175; Linguagem: Inglês

10.1016/j.jad.2015.01.034

1573-2517

Jon D. Elhai, Ateka A. Contractor, Marijo Tamburrino, Thomas Fine, Gregory H. Cohen, Edwin Shirley, Philip K. Chan, Israel Liberzon, Joseph R. Calabrese, Sandro Galea,

Health and Well-being Studies

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.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 indicated that in contrast to other PTSD factors, PTSD׳s dysphoria factor was more related to MDD׳s somatic and non-somatic factors.Limitations include generalizability to the epidemiological population of trauma-exposed military veterans rather than civilians, and reliance on self-report measures.Implications concerning clinical psychopathology and comorbidity of PTSD are discussed, including whether PTSD should be refined by removing its non-specific symptoms.