Retrospective analysis of risk factors for left-sided vs right-sided colon cancer in a southern Chinese Han population

Figure 3 Comparison of metabolic indicators and lifestyle factors between left-sided colorectal cancer and right-sided colorectal cancer groups. A: Comparison of body mass index between the left-sided colorectal cancer (L-CRC) and right-sided colorectal cancer (R-CRC) groups. Data are presented as mean ± SD. Statistical analysis was performed using an independent samples t-test; B-E: Pie charts illustrating the proportions of patients in the L-CRC (n = 1132) and R-CRC (n = 877) groups based on smoking status (smoking vs un-smoking; B), drinking status (drinking vs un-drinking; C), low-density lipoprotein (LDL) levels (LDL ≥ 190 mg/dL vs LDL < 190 mg/dL; D), and hypertriglyceridemia status (hypertriglyceridemia vs no hypertriglyceridemia; E); F-I: Bar charts depicting the absolute number of patients in each group corresponding to the characteristics shown in panels B-E, respectively. Statistical significance for categorical variables (panels B-E) was determined using the χ² test. All statistical tests yielded P < 0.001. L-CRC: Left-sided colorectal cancer; R-CRC: Right-sided colorectal cancer; LDL: Low-density lipoprotein.