Incidence of non-Hodgkin's lymphoma and Hodgkin's disease in Sardinia, Italy: 1974-1993.

BACKGROUND AND OBJECTIVES The reasons for the worldwide increase in non-Hodgkin's lymphoma (NHL) are not clearly understood. We investigated whether an increasing trend over time has also occurred in the Italian region of Sardinia, the population of which exhibits peculiar genetic features, due to millenary isolation and pressure from 2,500 years of… (More)