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Kaplan–Meier survival curves in patients with NPC of different race/ethnicity. Survival curves for CSS (A–E) and OS (F–J) were stratified by marital status. (A, F) All races/ethnicities; (B, G) Non‐Hispanic white; (C, H) Non‐Hispanic black; (D, I) Hispanic; (E, J) Chinese. CSS, cause‐specific survival; OS, overall survival; HR, hazard ratio; CI, confidence interval; No., number; NPC, nasopharyngeal carcinoma.
