History, Implementation and Current Use of the IFCC-IUPAC's Nomenclature for Properties and Units (NPU) Terminology in Denmark, Norway and Sweden.

Electronic exchange of health care data demands code/terminology systems. In the Scandinavian countries, the IFCC-IUPAC's Nomenclature for Properties and Units (NPU) terminology is used for results in biochemistry, pharmacology, and immunology. Implementation, use and administration of NPU has differed between the countries despite similar health care and lab sectors.

[Cervical sample-taking in the primary health service].

Background: In Norway, approximately 360 000 cervical screening samples were taken in 2020, of which 11 000 were registered as inadequate. We therefore wished to investigate doctors' knowledge of cervical sample-taking in the primary health service.

Material And Method: An anonymous survey on cervical sample-taking was sent by email to around 4 700 members of the Norwegian College of General Practice in September 2021.

Parental income gradients in child and adolescent mortality: Norwegian trends over half a century.

Background: Child mortality has declined rapidly over the last century in many high-income countries. However, little is known about the socio-economic differences in this decline and whether these vary across causes of death.

Methods: We used register data that included all Norwegian births between 1968 and 2010 (2.

Porphyria cutanea tarda and patterns of long-term sick leave and disability pension: a 24-year nationwide matched-cohort study.

Background: Porphyria cutanea tarda (PCT) is a skin disorder caused by a defect in the liver enzyme uroporphyrinogen decarboxylase and is associated with hepatitis C virus infection, high alcohol intake, smoking and iron overload. Data on the long-term morbidity of PCT is lacking.

Methods: We conducted a nationwide matched cohort study over a 24-year period.

Diagnostic performance of a SARS-CoV-2 rapid antigen test in a large, Norwegian cohort.

Background: Rapid antigen tests (RATs) may be included in national strategies for handling the SARS-CoV-2 pandemic, as they provide test results rapidly, are easily performed outside laboratories, and enable immediate contract tracing. However, before implementation further clinical evaluation of test sensitivity is warranted.

Objectives: To examine the performance of Abbott's Panbio™ COVID-19 Ag Rapid Test Device for SARS-CoV-2 testing in a low to medium prevalence setting in Norway.

Sick leave, disability, and mortality in acute hepatic porphyria: a nationwide cohort study.

Background: Acute hepatic porphyria (AHP) consists of three rare metabolic disorders. We investigated the risk of long-term sick leave, disability pension, and premature death in individuals with AHP compared to the general population.

Methods: In a nationwide cohort study from 1992 to 2017, records of 333 persons (total person-years = 6728) with a confirmed AHP diagnosis were linked to several national compulsory registries (reference population = 5,819,937).

Association of Household Income With Life Expectancy and Cause-Specific Mortality in Norway, 2005-2015.

Importance: Examining causes of death and making comparisons across countries may increase understanding of the income-related differences in life expectancy.

Objectives: To describe income-related differences in life expectancy and causes of death in Norway and to compare those differences with US estimates.

Design And Setting: A registry-based study including all Norwegian residents aged at least 40 years from 2005 to 2015.

Porphyria cutanea tarda increases risk of hepatocellular carcinoma and premature death: a nationwide cohort study.

Background: Porphyria cutanea tarda (PCT) is a skin disorder originating from a deficit of the liver enzyme uroporphyrinogen decarboxylase. PCT may be a risk factor for hepatocellular carcinoma (HCC) and other cancers, but the evidence is unclear. We aimed to investigate cancer and premature mortality risk in persons with PCT.

Parental socioeconomic status and risk of cerebral palsy in the child: evidence from two Nordic population-based cohorts.

Background: We investigated whether the risk of cerebral palsy (CP) in the child varies by parents' socioeconomic status, in Denmark and Norway.

Methods: We included almost 1.3 million children born in Demark during 1981-2007 and 2.

Use of paracetamol, ibuprofen or aspirin in pregnancy and risk of cerebral palsy in the child.

Background: It has been debated whether mild analgesics, mainly paracetamol, adversely affect aspects of neurodevelopment. We examined whether mother's use of paracetamol, aspirin or ibuprofen in pregnancy is associated with increased risk of cerebral palsy (CP) in the child.

Method: We included 185 617 mother-child pairs from the Danish National Birth Cohort and the Norwegian Mother and Child Cohort Study.

Associations of maternal atopic diseases with adverse pregnancy outcomes: a national cohort study.

Background: Maternal asthma has been associated with adverse pregnancy outcomes. Little is known about the influence of other atopic diseases on pregnancy outcomes. We assessed how various maternal atopic diseases might affect preterm birth, stillbirth, and neonatal death.

Porphyrias in Norway.

Background: Porphyria is an umbrella term for a group of largely hereditary diseases that are due to defective haem synthesis. The diseases have a varied and partly overlapping range of symptoms and presentations. The commonest forms of porphyria are porphyria cutanea tarda, acute intermittent porphyria and erythropoietic protoporphyria.

Excess risk of adverse pregnancy outcomes in women with porphyria: a population-based cohort study.

The porphyrias comprise a heterogeneous group of rare, primarily hereditary, metabolic diseases caused by a partial deficiency in one of the eight enzymes involved in the heme biosynthesis. Our aim was to assess whether acute or cutaneous porphyria has been associated with excess risks of adverse pregnancy outcomes. A population-based cohort study was designed by record linkage between the Norwegian Porphyria Register, covering 70% of all known porphyria patients in Norway, and the Medical Birth Registry of Norway, based on all births in Norway during 1967-2006.

[Increased rate of Caesarean sections--causes and consequences].

Background: A rise in the rate of caesarean sections has been observed in most parts of the developed world during the last decades. Causes and consequences are much debated.

Material And Methods: Non-systematic literature search in PubMed.

Cesarean delivery and subsequent pregnancies.

Objective: To assess possible effects of a cesarean delivery on outcome in subsequent pregnancies.

Methods: Using an historical cohort design, we analyzed 637,497 first and second births among women with two or more single births and 242,812 first, second, and third births among women with three or more single births registered in the population-based Medical Birth Registry of Norway between 1967 and 2003.

Results: Compared with a vaginal delivery at first birth, a cesarean delivery at first birth was followed, in a second pregnancy, by increased risks of preeclampsia (odds ratio [OR] 2.