Cancer Risk Among Patients With Multiple Sclerosis Assessed

Cancer risk among patients with multiple sclerosis (MS) was assessed. According to recent research published in the International Journal of Cancer, "Cancer occurrence in patients with MS has been little studied, but associations with brain tumors, breast cancer, Hodgkin lymphoma and nasopharyngeal carcinoma have been suggested. We took advantage of population-based registers of MS and cancer to assess the risk of cancer following diagnosis of MS." "Patients registered in the Danish Multiple Sclerosis Register were linked with the Danish Cancer Register to obtain information on cancer occurrence. The ratio of the observed to the number of expected cancers based on population-based incidence rates, i.e., the standardized incidence rati...