Characteristics of non-Hodgkin lymphoma (NHL) cases and controls in the PAGE studies.

* Any prior cancer cases were excluded from the NHL cases and controls for the current analysis, based on self-report (BioVU, MEC, WHI), the SEER registry linkage (BioVU, MEC), and medical record reviews (BioVU, WHI).Abbreviations: BioVU (the biorepository of the Vanderbilt University), MEC (the Multiethnic Cohort Study), WHI (the Women's Health Initiative); CLL/SLL (chronic lymphocytic leukemia/small lymphocytic lymphoma), DLBCL (diffuse large B-cell lymphoma), FL (follicular lymphoma), SEER (Surveillance, Epidemiology and End Results).