Kaplan-Meier curve of overall- and DLBCL-specific survival by period of diagnosis, neighborhood SES group, and stage at diagnosis, California. The vertical axis represents survival probability; the horizontal axis represents survival time in days. Lower SES refers to quintiles 1 and 2, and higher SES refers to quintiles 3 to 5. (A) Localized and regional stage, overall survival. (B) Advanced stage, overall survival. (C) Localized and regional stage, DLBCL-specific survival. (D) Advanced stage, DLBCL-specific survival. Plog-rank < .005.