Abstract The Nordic countries are Denmark, Finland, Iceland, Norway, and Sweden and
comprise a total population of approximately 27 million. The countries provide unique …

Denmark has a large network of population-based medical databases, which routinely
collect high-quality data as a by-product of health care provision. The Danish medical …

Psychiatric genetics has made substantial progress in the last decade, providing new
insights into the genetic etiology of psychiatric disorders, and paving the way for precision …

Abstract The Danish Medical Birth Register was established in 1973. It is a key component
of the Danish health information system. The register enables monitoring of the health of …

C-reactive protein (CRP) is a sensitive biomarker of chronic low-grade inflammation and is
associated with multiple complex diseases. The genetic determinants of chronic …

Perfluoroalkyl substances (PFAS), chemicals used to make products stain and stick
resistant, have been linked to health effects in adults and adverse birth outcomes. A growing …

Longitudinal cohort studies can provide important evidence about preventable causes of
disease, but the success relies heavily on the commitment of their participants, both at …

Background A secular trend towards earlier puberty has been observed in girls, while a
similar trend has been more uncertain in boys. We estimated current ages at pubertal …

Preeclampsia is a serious complication of pregnancy, affecting both maternal and fetal
health. In genome-wide association meta-analysis of European and Central Asian mothers …

Abstract The Integrative Psychiatric Research (iPSYCH) consortium has established a large
Danish population-based Case–Cohort sample (iPSYCH2012) aimed at unravelling the …