Ralf Kuja-Halkola
ralfkh.bsky.social
Ralf Kuja-Halkola
@ralfkh.bsky.social
Researcher in psychiatric epidemiology.
Reposted by Ralf Kuja-Halkola
🚨 NEW PREPRINT 🚨

We've conducted the largest investigation of genetic and environmental influences on violent victimisation by examining 4.5 million Nordic twins and siblings.

What did we find? 🧵
December 23, 2025 at 1:34 PM
Reposted by Ralf Kuja-Halkola
Oskarsson and colleagues analyzed a large Swedish population to show that individuals with ADHD were more likely to be convicted of a crime. This risk was significantly higher in women than in men, and was higher in individuals with a relative diagnosed with ADHD.
The Familial Co-Aggregation of ADHD and Criminal Convictions: A Register-Based Cohort Study
The association between ADHD and criminality is well established, yet little is known about the familial liability of ADHD and crime across different types of relatives, from twins to cousins. This st...
www.biologicalpsychiatryjournal.com
October 16, 2025 at 2:31 PM