Trajectory of illness-related anxiety and secondary outcomes by treatment arm: (A) Impact of Event Scale–Revised (IES-R), (B) Hospital Anxiety and Depression Scale (HADS) –Anxiety, and (C) Functional Assessment of Cancer Therapy–General (FACT-G) scores. For IES-R, the total score ranges from 0 to 88, and higher scores indicate a higher level of illness-related anxiety. For HADS-Anxiety, the total score ranges from 0 to 28, and higher scores indicate a higher level of general anxiety. The black error bars indicate 95% CIs for the mean scores. For FACT-G, the total score ranges from 0 to 108, and higher scores indicate better quality of life. MR, maintenance rituximab; RR, rituximab re-treatment.