Many environmental factors can influence cancer incidence. Genes also play a role. However, the causes of many types of cancer are still unknown.
Cancer mortality in Norway - fact sheet
Cancer mortality has changed little since the 1950s until now, when we look at the number of deaths per 100 000 inhabitants and correct for increased life expectancy. However, cancer prevalence has increased. There are greater socioeconomic differences in cancer mortality today than 40 years ago, particularly for lung cancer.
News and research findings
As many large breast tumours detected without mammography
In Denmark, regions with organised mass breast cancer screening programmes did not detect less tumours over two centimetres than regions without.
Nordic twin study highlights familial cancer risk
Having a twin with cancer is associated with a higher risk of the co-twin developing cancer, although not necessarily of the same type.
Are the metabolic syndrome and cancer related?
Metabolic syndrome is a group of risk factors for cardiovascular disease and diabetes type 2. Few studies have studied the metabolic syndrome as an entity and the risk of cancer.