Kaplan-Meier curves demonstrating overall survival by multimorbidity pattern in older transplant-ineligible veterans newly treated for multiple myeloma in Veterans Affairs. Survival varied across patterns (log-rank 2-sided P < .001). Shaded areas around solid curves represent 95% confidence intervals. Dashed lines represent median survival for each multimorbidity class, as follows: minimal comorbidity = 3.87 years, diabetes and complications = 2.98 years, psychiatric and substance use disorders = 2.67 years, chronic lung disease = 2.45 years, and multisystem impairment = 1.56 years.