Access to the unique various Danish registers makes Denmark one of the leading countries in the world with regard to register-based research. The Danish registers offer possibilities to study large nationwide samples, which are less biased than most other samples. This is possible because in Denmark, access to healthcare is free of charge for everyone, and there are virtually no private psychiatric hospitals.

Studies at NCRR have contributed to epidemiological research through work focusing on specific mental illnesses including schizophrenia, bipolar disorder, depression, autism and attention deficit hyperactivity disorder (ADHD). Moreover, research also includes combined studies on disorders as well as studies on mortality and suicide, eating disorders, psychopharmacology and many more.

Research at NCRR is interdisciplinary. We collaborate with research groups, and have frequent interactions with leading epidemiologists from the Danish and international research community. Currently, NCRR houses four major research projects cross-linking highly skilled researchers from Denmark and abroad:  

• iPSYCH; a national psychiatric project anchored at Aarhus University
• CIRRAU; a centre for interdisciplinary register-based research funded by Aarhus University
• A European Stanley Research Centre supporting research on causes and treatment of schizophrenia and bipolar disorder
• A Niels Bohr Professorship that follows up on recent discoveries linking neonatal vitamin D and the risk of schizophrenia and other mental disorders