chapter  4
23 Pages

The contribution of Nordic population registers to the search for the causes of schizophrenia and other psychiatric disorders


Introduction Many reviews of Nordic registers and their uses in medical research have focused on specific topics or on only one country (Cappelen & Lyshol, 2004; Gissler & Haukka, 2004; Mortensen, 2004; Munk-Jørgensen, Kastrup, & Mortensen, 1993). We describe a range of Nordic registers that have been used in psychiatric research and discuss a number of general issues related to register-based research. We then review a selection of studies in psychiatric epidemiology arising from Denmark, Finland, Norway and Sweden that have made use of such registers, and highlight some, such as a study of the psychiatric sequelae of viral infections of the nervous system during childhood, that we feel epitomize the scope for opportunistic research in this context.