In a large international collaborative analysis of risk factors for non-Hodgkin lymphoma (NHL), scientists were able to quantify risk associated with medical history, lifestyle factors, family history of blood or lymph-borne cancers, and occupation for 11 different NHL subtypes, including less common subtypes. Each year, more than half a million people worldwide are diagnosed with NHL, a diverse group of cancers of the immune system.
Although past research suggested different subtypes of NHL may have different causes, those individual studies lacked sufficient statistical power to show this definitively. To overcome this problem, over 100 scientists from the International Lymphoma Epidemiology Consortium pooled data from their studies to produce 13 papers published as a monograph in the Journal of the National Cancer Institute on August 30, 2014.
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