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Alcohol use disorders and insomnia mediate the association between PTSD symptoms and suicidal ideation in Korean firefighters

There has been a strong association between posttraumatic stress disorder (PTSD) and suicidal ideation, which are both major mental health concerns in firefighters. Alcohol use disorders (AUDs) and insomnia are linked with both PTSD and suicidal ideation, but no studies have examined whether the relationship between PTSD and suicidal ideation can be explained by AUDs and insomnia. The purpose of this study was to investigate the mediating role of AUDs and insomnia in the relationship between PTSD symptoms and suicidal ideation.