For example, the prognostic nutritional index have been reported to predict prognosis in NPC [33] and hepatocellular carcinoma [17]; NLR have been reported in NPC [34] and colorectal cancers [35]; mast cells have been reported in prostate cancer [36]; serum C-reactive protein, platelet–lymphocyte ratio, and lymphocyte–monocyte ratio were important predictors of prognosis of NPC [33,34]. Here, CRP is linked to prostate cancer.