jump to navigation
Print    E-Mail   RSS   Widgets      Share External link. Please review our Disclaimer 

Research & Resources




Alcohol-Related Conditions: PTSD's Association With Suicide Attempts

Using data from the National Epidemiologic Survey on Alcohol and Related Conditions-III, scientists surveyed 36,309 U.S. adults ages 18 and older. The study proposed and tested an exploratory bifactor hybrid model for DSM-5 posttraumatic stress disorder (PTSD) symptoms. The model posited one general and seven specific latent factors used to validate PTSD dimensions. The general factor was found to be the single dominant latent trait that explained most of the common variance (about 76 percent) and showed significant, positive associations with suicide attempts and mediating psychiatric disorders. The identification of the primary latent trait of PTSD confirms PTSD as an independent psychiatric disorder and helps define PTSD severity in clinical practice and for etiologic research.

The study, “Dimensionality of DSM-5 Posttraumatic Stress Disorder and Its Association With Suicide Attempts: Results From the National Epidemiologic Survey on Alcohol and Related Conditions-III,” is published in Social Psychiatry and Psychiatric Epidemiology. The National Institute on Alcohol Abuse and Alcoholism supported this research effort.

Return to Tips and Resources