| RS | LS HR (95% CI) |
---|
Stage at presentation |
 Stage 0 | 1.00 | 0.79 (0.68–0.93)* |
 Stage I | 1.00 | 0.79 (0.77–0.82)** |
 Stage II | 1.00 | 0.89 (0.87–0.91)** |
 Stage III | 1.00 | 0.74 (0.73–0.76)** |
 Stage IV | 1.00 | 0.74 (0.73–0.76)** |
 All Stages | 1.00 | 0.81 (0.8–0.82)** |
- ** p < 0.001, *p < 0.05; CI confidence interval, HR hazard ratio. The classification criteria of stages refer to the AJCC/UICC TNM staging system. Right-sided (RS) CRC includes cancers located in the cecum, ascending colon, and transverse colon, and left-sided (LS) CRC includes those located in the descending colon, sigmoid colon, and rectum. The LS group was set to 1 as the control group