Increased combined mean mRNA expression levels of RPS15, RPL11, RPL18 and RPL36 are significantly associated with poor survival of colon cancer patients. Kaplan−Meier analysis for assessment of OS in patients with colon cancer, based on combined expression of RPS15, RPL11, RPL18 and RPL36. (A) RPS15, RPL11; (B) RPS15, RPL18; (C) RPS15, RPL36; (D) RPL11, RPL18; (E) RPL11, RPL36; (F) RPL36, RPL18; (G) RPS15, RPL11, RPL36; (H) RPS15, RPL11, RPL18; (I) RPS15, RPL18, RPL36; (J) RPL11, RPL18, RPL36; (K) RPS15, RPL11, RPL18, RPL36. Survival curves were generated by using the Kaplan−Meier Plotter online tool based on data stratified based on the median. Curves were compared by log−rank test.