Changes in alcohol-related emergency department presentations-a comparison of three waves in 2013, 2017 and 2022.

Aims: Emergency departments (EDs) around the world are increasingly overcrowded, which is associated with significant patient harm. Alcohol use is a known contributor to ED overcrowding. This study aimed to assess trends in the characteristics of alcohol-related ED presentations over time.

Hippocampal phase precession is preserved under ketamine, but the range of precession across a theta cycle is reduced.

Background: Hippocampal phase precession, which depends on the precise spike timing of place cells relative to local theta oscillations, has been proposed to underlie sequential memory. N-methyl-D-asparate (NMDA) receptor antagonists such as ketamine disrupt memory and also reproduce several schizophrenia-like symptoms, including spatial memory impairments and disorganized cognition. It is possible that these impairments result from disruptions to phase precession.

The New Zealand drug harms ranking study: A multi-criteria decision analysis.

Aims: The harms arising from psychoactive drug use are complex, and harm reduction strategies should be informed by a detailed understanding of the extent and nature of that harm. Drug harm is also context specific, and so any comprehensive assessment of drug harm should be relevant to the characteristics of the population in question. This study aimed to evaluate and rank drug harms within Aotearoa New Zealand using a multi-criteria decision analysis (MCDA) framework, and to separately consider harm within the total population, and among youth.

Eating disorders, disordered eating, and body image research in New Zealand: a scoping review.

Background: The prevention and treatment of eating disorders relies on an extensive body of research that includes various foci and methodologies. This scoping review identified relevant studies of eating disorders, body image, and disordered eating with New Zealand samples; charted the methodologies, sample characteristics, and findings reported; and identified several gaps that should be addressed by further research.

Methods: Using scoping review methodology, two databases were searched for studies examining eating disorders, disordered eating, or body image with New Zealand samples.

Childhood maltreatment and the menopause transition in a cohort of midlife New Zealand women.

Objective: Knowledge surrounding the link between childhood adversity and reproductive outcomes at midlife is limited. The present study examined the relationship between childhood maltreatment (childhood sexual abuse [CSA], childhood physical punishment [CPP]), and menopause status at age 40.

Methods: Data were gathered from female members of the Christchurch Health and Development Study, a longitudinal birth cohort of 1,265 individuals (630 females) born in Christchurch, New Zealand in 1977.

Recommendations to encourage participation of individuals from diverse backgrounds in psychiatric genetic studies.

We present innovative research practices in psychiatric genetic studies to ensure representation of individuals from diverse ancestry, sex assigned at birth, gender identity, age, body shape and size, and socioeconomic backgrounds. Due to histories of inappropriate and harmful practices against marginalized groups in both psychiatry and genetics, people of certain identities may be hesitant to participate in research studies. Yet their participation is essential to ensure diverse representation, as it is incorrect to assume that the same genetic and environmental factors influence the risk for various psychiatric disorders across all demographic groups.

Measuring drug harm in New Zealand: a stocktake of current data sources.

Aims: The availability of legal and illegal drugs is widespread across New Zealand. All drugs have the potential to cause harm to those who use them, and to others. Understanding the nature and extent of these harms depends upon the ongoing and systematic collection of relevant data, which is crucial in achieving the current national policy goal of minimising drug harm.

The Eating Disorders Genetics Initiative (EDGI): study protocol.

Background: The Eating Disorders Genetics Initiative (EDGI) is an international investigation exploring the role of genes and environment in anorexia nervosa, bulimia nervosa, and binge-eating disorder.

Methods: A total of 14,500 individuals with eating disorders and 1500 controls will be included from the United States (US), Australia (AU), New Zealand (NZ), and Denmark (DK). In the US, AU, and NZ, participants will complete comprehensive online phenotyping and will submit a saliva sample for genotyping.

Attitudes towards cannabis and cannabis law change in a New Zealand birth cohort.

Aims: Personal cannabis use is common across New Zealand, and an upcoming referendum will enable the public to vote on whether this should be legalised. The present research aimed to examine the attitudes of midlife New Zealand adults on cannabis use and legalisation, and to identify potential predictors of those attitudes.

Methods: At age 40, 899 participants drawn from the Christchurch Health and Development Study were interviewed about the perceived harmfulness of cannabis use, opinions on legalisation for recreational use and supply, and the use of cannabis for medicinal purposes.

Is there systemic bias for Māori with eating disorders? A need for greater awareness in the healthcare system.

The New Zealand Mental Health Survey, Te Rau Hinengaro, indicated that eating disorders are at least as common in Māori as non-Māori, which is consistent with international findings that eating disorders exist in other indigenous and ethnic minority groups. Specific factors may be relevant to the development and treatment of eating disorders in the Māori population. We suggest this may include differential exposure to risk factors, the impact of acculturation, changing body image ideals and systemic bias reducing access to treatment and research participation.