Nightmares in Treatment-Seeking Youth: the Role of Cumulative Trauma Exposure.

Although nightmares are frequently endorsed symptoms in children who have experienced trauma, limited research has been conducted on how nightmares vary with different forms of trauma exposure. Our goal was to assess the relationship between nightmares, trauma exposure, and symptoms of Posttraumatic Stress Disorder (PTSD) in youth. A total of 4440 trauma exposed treatment-seeking youth (ages 7 to 18) were administered the UCLA PTSD Reaction Index. Different trauma types, total traumas experienced, and PTSD symptoms were analyzed with correlations and a logistic regression in relation to nightmare frequency. Overall, 33.1% of participants reported experiencing clinically-significant nightmares. 79.1% of the sample experienced more than one trauma type, with an average of 3.06 trauma types endorsed. A binary logistic regression demonstrated the odds of reporting clinically-significant nightmares increased by 1.3 times for every additional type of trauma experienced. Lastly, nightmares were positively correlated with all PTSD criterion. The current study provides prevalence rates of trauma exposure and nightmares in a large, statewide sample of treatment-seeking youth. Each new trauma type experienced resulted in a greater likelihood of endorsing clinically-significant nightmares. This study provides useful information related to assessing and addressing nightmares in youth who have experienced trauma. © Springer Nature Switzerland AG 2019.