Associations Between Distinct Trauma Classes and Mental Health Care Utilization in Norwegian Adolescents: A National Registry Study.

Adolescents who experience potentially traumatic experiences (PTEs) have an increased risk of psychopathology. PTEs often co-occur and may form interrelated patterns of exposure. This study investigated underlying classes of PTE exposure among Norwegian adolescent participants in the youth@hordaland study, and whether such classes were associated with contact with child and adolescent mental health services (CAMHS) and psychiatric diagnoses. The data stem from the population-based youth@hordaland study conducted in 2012 which was linked to the Norwegian Patient Registry (NPR, n = 8845). Exposure to PTEs was assessed by adolescent self-report whereas psychiatric disorders (Axis 1) were derived from the NPR. Latent Class Analysis was used to identify distinct classes of PTE exposure-patterns in the data. Logistic regression analyses were performed to investigate associations between classes of PTEs and contact with CAMHS and psychiatric diagnoses. Three classes of PTE exposure were identified based on model fit indices and theoretical considerations. Compared with participants in the low trauma class (88% of participants), those in the Situational-(6%) and Interpersonal trauma class (6%) had higher odds-ratios (ORs) for contact with CAMHS (OR = 2.27 (95% CI [1.78, 2.87])) and (OR = 3.26 (95% CI [2.61, 4.04])) respectively, and for being diagnosed with a psychiatric disorder in CAMHS (ORs ranged from 2.19 - 10.4) after adjusting for sex and parental education. There were more participants diagnosed with ADHD within the Interpersonal trauma class compared to the Situational trauma class when adjusting for sex and parental education (OR = 2.22 (95% CI [1.17, 4.40])). Three relatively homogeneous PTE classes, consisting of distinct patterns of trauma exposure were associated with a higher odds of contact with CAMHS and of being diagnosed with a psychiatric disorder in CAMHS. The study highlights the co-occurrence of PTEs and their impact across the diagnostic spectrum.

Using Norwegian National Patient Registry data to understand associations between potentially traumatic life experiences and mental health care use in adolescence.

Exposure to potentially traumatic experiences (PTEs) is common among children and adolescents and associated with an increased risk of psychiatric diagnoses. This study aimed to ascertain how the number of PTEs differed across adolescent psychiatric diagnoses. Data on PTE exposure were derived from the youth@hordaland survey, and Axis 1 data were from the linked Norwegian National Patient Registry (NPR). Among 10,257 total adolescents, 9,555 (age range: 16-19 years, 53.9% female) consented to register linkage, 8,845 of whom were included in the analyses. Having contact with Child and Adolescent Mental Health Services (CAMHS) predicted more PTEs (estimated marginal mean [EMM] = 1.04, SE = 0.05) and exposure to two or more PTEs compared to having no CAMHS contact (EMM = 0.60) after adjusting for age, ethnicity, sex, and parental education. Adolescents diagnosed with attention-deficit/hyperactivity disorder, depression, trauma-related disorders, conduct disorder, and anxiety experienced significantly more PTEs (EMMs = 0.90-1.63) than those with no CAMHS contact (EMM = 0.57, SE = 0.01). All diagnostic categories except psychosis, autism spectrum disorders, and eating disorders had a significantly higher rate of PTEs compared with adolescents with no CAMHS contact. The study highlights the potential role of exposure to multiple PTEs as a transdiagnostic risk factor, although the level of risk varies between diagnoses.

Exposure to potentially traumatic events and PTSD symptomatology in Norwegian 11-13-year-olds: results from the Bergen Child Study.

BACKGROUND: Exposure to potentially traumatic experiences (PTEs) is common among children and adolescents, but relatively little is known about the epidemiology of trauma and trauma-related psychopathology in children and youth. The present cross- sectional epidemiological study aimed to explore factors that is associated with posttraumatic stress symptoms (PTSS) in children. METHOD: Data stem from the Bergen Child Study, a series of cross-sectional multi-phase surveys of children born between 1993 and 1995 in Bergen, Norway. The sample used is from the second wave of the Bergen Child Study (BCS) conducted in 2006, a two-phase study. The study entailed a detailed psychiatric evaluation using the Development and well-being assessment (DAWBA). The DAWBA was administered to parents or caregivers and covered diagnostic areas, child and family background, and child strengths. A total of 2043 parents participated. RESULTS: Out of the total sample, parents reported that 4.8% children had experienced PTEs at some point in their lives. The findings revealed current PTSS in 30.9% of children exposed to PTE, which was 1.5% of the total sample. None of the parents reported PTSS in their children over the threshold for diagnosing posttraumatic stress disorder (PTSD). The most common PTSS cluster was arousal reactivity (90.0%), followed by negative cognitions and mood (80%). The least frequent symptom cluster was intrusions (63.3%) and avoidance (60%). Children with PTSS were reported to live in families with significantly more family stressors (p = 0.001, d = 0.8) and had utilized significantly more sources for help relative to those without PTSS (p = 0.001, d = 0.75). CONCLUSION: The present population study on children revealed a lower prevalence rate of PTEs and PTSD than previous studies. It provided findings in the field of trauma on parent- reported PTSS and PTSD symptom clusters not restricted to the clinical level of PTSD. Lastly, it highlighted how family-life stressors and support differed between those who had PTSS and those with no PTSS.