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2025 International Siblings Day

National Siblings Day is a holiday dedicated to celebrating the bond between siblings. It is a time to recognize the importance of siblings, whether they are brothers, sisters, step-siblings, or even those who feel like family.

Publications

The list of The Siblings Project publications

Rural Sibling Study

We want to hear from siblings living outside of Australian cities!

The increasing prevalence of reported diagnoses of childhood psychiatric disorders: a descriptive multinational comparison

The objective of this study is to compare the time trend of reported diagnoses of autism spectrum disorder, hyperkinetic disorder, Tourette's syndrome, and...

Efficacy of fewer than three doses of an HPV-16/18 AS04-adjuvanted vaccine: Combined analysis of data from the Costa Rica Vaccine and PATRICIA trials

The main aim of the study was to ascertain HPV-16/18 vaccine efficacy in both full and naive cohorts and to explore protection conferred against non-vaccine HPV

Interpretation of recent sudden infant death syndrome rates in Western Australia

Data for recent years show a shift away from a classification of 'SIDS' towards a classification of 'unascertainable', particularly for Aboriginal infants.

The changing epidemiology of invasive pneumococcal disease

We investigated trends in invasive pneumococcal disease (IPD) in Western Australia (WA).

New website provides tools and resources for parents of gender diverse children and young people

Transforming Families is providing evidence-based resources to help support the mental wellbeing of young people questioning their gender identity, or who identify as trans or gender diverse.