Record of Enrollment at Leiden University

A record of Leiden University, entitled, Album Studiosorum Batavae Academie Lugduno, 1575-1875 indicating that Albertus C. Van Raalte was enrolled in the university on June 16, 1829. A. Brummelkamp was enrolled May 7, Simon van Velzen, on May 8, and Hendrik P. Scholte, May 20.https://digitalcommons.hope.edu/vrp_1820s/1001/thumbnail.jp

Leiden University Document Attesting the Study of Universal History

A document attesting the study of Albertus C. Van Raalte in universal history at Leiden University.https://digitalcommons.hope.edu/vrp_1830s/1007/thumbnail.jp

Leiden University Exam Records of Van Raalte

Records of this date and of other dates dealing with exams of Albertus C. Van Raalte at the University of Leiden. Also a university document dated 1834, which lists Van Raalte. This document may relate to military service, either being exempted or having served.https://digitalcommons.hope.edu/vrp_1830s/1002/thumbnail.jp

Towards an Integrated Agriculture

Economics; Environmen

Latent classes of DSM-5 acute stress disorder symptoms in children after single-incident trauma: findings from an international data archive

Background: After a potentially traumatic event (PTE), children often show symptoms of acute stress disorder (ASD), which may evolve into posttraumatic stress (PTS) disorder. A growing body of literature has employed latent class analysis (LCA) to disentangle the complex structure underlying PTS symptomatology, distinguishing between homogeneous subgroups based on PTS presentations. So far, little is known about subgroups or classes of ASD reactions in trauma-exposed children. Objective: Our study aimed to identify latent classes of ASD symptoms in children exposed to a single-incident PTE and to identify predictors of class membership (gender, age, cultural background, parental education, trauma type, and trauma history). Method: A sample of 2287 children and adolescents (5–18 years) was derived from the Prospective studies of Acute Child Trauma and Recovery (PACT/R) Data Archive, an international archive including studies from the USA, UK, Australia, and Switzerland. LCA was used to determine distinct subgroups based on ASD symptoms. Predictors of class membership were examined using a three-step approach. Results: Our LCA yielded a three-class solution: low (42%), intermediate (43%) and high (15%) ASD symptom severity that differed in terms of impairment and number of endorsed ASD symptoms. Compared to the low symptoms class, children in the intermediate or high severity class were more likely to be of female gender, be younger of age, have parents who had not completed secondary education, and be exposed to a road traffic accident or interpersonal violence (vs. an unintentional injury). Conclusions: These findings provide new information on children at risk for ASD after single-incident trauma,