Figure 2. The serum NSE level and the incidence of high serum NSE according to RDW-SD. The mean serum NSE levels were 13.17±2.81 ng/mL, 13.11±3.21 ng/mL, and 14.35±3.55 ng/mL in the first, second, and third RDW-SD tertiles in all patients, respectively, and there was a significant difference among the three groups (p<0.001) (A). The prevalence of high NSE was 19/142 (13.38%), 22/148 (14.86%), and 40/152 (26.32%) in the first, second, and third RDW-SD tertiles, respectively, in all patients, and the prevalence of high NSE showed a grade increase according to the levels of the RDW-SD tertiles (p=0.007) (B).