Viktor H. Ahlqvist

At Karolinska Institutet, I lead research on the safety of medications in pregnancy, aiming to understand how they affect mothers, pregnancies, and children’s health. Our team conducted one of the world’s largest studies on paracetamol use in pregnancy, showing that it does not increase children’s risk of autism, ADHD, or intellectual disability. We also spearheaded an international effort to assess the safety of antiseizure medications. This work is made possible by Sweden’s comprehensive national health registers and advanced methods in causal inference and computational statistics.

At Aarhus University, my work focuses on statistical genetics and precision psychiatry. In particular, I study why people with neuropsychiatric conditions such as ADHD and autism face a higher risk of developing neurodegenerative diseases, including ALS and Parkinson’s disease, later in life.My background is in epidemiology, statistics, and causal inference. Beyond my core research, I also contribute to studies on preschool health, cardiovascular disease, and the development of innovative research methods across disciplines.

• Teacher in Biostatistics I and Biostatistics II, Master's Programme in Public Health Sciences, Karolinska Institutet.
• Teacher in Statistics, General Practitioner Programme, Academic Primary Care Center - Region Stockholm.
• Frequent guest lecturer in causal inference and statistics.