ORLANDO — Infection with hepatitis B virus may be a risk factor for non-hodgkin lymphoma, according to data presented here at Digestive Disease Week 2013.
Researchers from the Marshfield Clinic in Wisconsin conducted a meta-analysis that included 19 case-control studies performed throughout the world. The analysis included a total of 13,947 cases and 1,559,448 controls. In nine of the studies, the controls were non-lymphoma cancer/hospital patients; eight studies incorporated healthy controls, and two studies included both types of controls. In most of the studies (17), patients were diagnosed with hepatitis B by detection of HBsAg, while hepatitis B was self-reported in the remaining two studies. All incidences of non-hodgkin lymphoma (NHL) were diagnosed with histopathology.More »