Comparative detection of syndecan-2 methylation in preoperative and postoperative stool DNA in patients with colorectal cancer

Figure 4 Paired cycle threshold values of syndecan-2 methylation before and after surgery for each patient (n = 104). The cycle threshold (C_T) values were calculated as 40-C_T. A higher 40-C_T indicated a higher methylation level of syndecan-2 (SDC2). If SDC2 methylation was not detected, it was expressed as 0. P value was calculated using a paired t-test. SDC2: Syndecan-2; C_T: Cycle threshold.