Development and temporal validation of a clinical prediction model of transition to psychosis in individuals at ultra-high risk in the UHR 1000+ cohort.

The concept of ultra-high risk for psychosis (UHR) has been at the forefront of psychiatric research for several decades, with the ultimate goal of preventing the onset of psychotic disorder in high-risk individuals. Orygen (Melbourne, Australia) has led a range of observational and intervention studies in this clinical population. These datasets have now been integrated into the UHR 1000+ cohort, consisting of a sample of 1,245 UHR individuals with a follow-up period ranging from 1 to 16.

Retrospective Examination of Peripubertal Return for Patients of Western Australia's Gender Diversity Service.

Children far in advance of pubertal development may be deferred from further assessment for gender-affirming medical treatment until nearer puberty. It is vital that returning peripubertal patients are seen promptly to ensure time-sensitive assessment and provision of puberty suppression treatment where appropriate. This study investigates (1) how many referrals to the Child and Adolescent Health Service Gender Diversity Service at Perth Children's Hospital are deferred due to prepubertal status; and (2) how many deferred patients return peripubertally.

Reidentification With Birth-Registered Sex in a Western Australian Pediatric Gender Clinic Cohort.

Importance: Some young people who identify as transgender and seek gender-affirming medical care subsequently reidentify with their sex registered at birth. Evidence regarding the frequency and characteristics of this experience is lacking.

Objective: To determine the frequency of reidentification and explore associated characteristics in a pediatric gender clinic setting.

Combining Clinical With Cognitive or Magnetic Resonance Imaging Data for Predicting Transition to Psychosis in Ultra High-Risk Patients: Data From the PACE 400 Cohort.

Background: Multimodal modeling that combines biological and clinical data shows promise in predicting transition to psychosis in individuals who are at ultra-high risk. Individuals who transition to psychosis are known to have deficits at baseline in cognitive function and reductions in gray matter volume in multiple brain regions identified by magnetic resonance imaging.

Methods: In this study, we used Cox proportional hazards regression models to assess the additive predictive value of each modality-cognition, cortical structure information, and the neuroanatomical measure of brain age gap-to a previously developed clinical model using functioning and duration of symptoms prior to service entry as predictors in the Personal Assessment and Crisis Evaluation (PACE) 400 cohort.

Potential immunological effects of gender-affirming hormone therapy in transgender people - an unexplored area of research.

There are well-described sex-based differences in how the immune system operates. In particular, cisgender (cis) females have a more easily activated immune system; associated with an increased prevalence of autoimmune diseases and adverse events following vaccinations. Conversely, cis males have a higher threshold for immune activation, and are more prone to certain infectious diseases, such as coronavirus disease (COVID-19).