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

Figure 2 Comparison of demographic and clinical characteristics between left-sided colorectal cancer and right-sided colorectal cancer groups. A: Violin plot showing the distribution of age (year) in left-sided colorectal cancer (L-CRC) and right-sided colorectal cancer (R-CRC) groups. The light blue violin represents the L-CRC group, and the light purple violin represents the R-CRC group. Data were analyzed using an independent samples t-test; B: Bar plot comparing the distribution of sex between L-CRC and R-CRC groups. The light blue sector indicates female, and light purple sector indicates male; C and D: Pie charts displaying the sex distribution (male vs female) in L-CRC (total = 1132) and R-CRC (total = 877) groups. The light blue sector represents males, and light purple sector represents females; E: Bar plot showing the distribution of family history of polyps in L-CRC and R-CRC groups. The light blue sector indicates Family history of polyps, and light purple sector indicates no family history of polyps; F: Bar plot showing the distribution of family history of colorectal cancer (CRC) in L-CRC and R-CRC groups. The light blue sector indicates family history of CRC, and light purple sector indicates no family history of CRC; G and H: Pie charts showing the proportion of family history of CRC in L-CRC (total = 1132) and R-CRC (total = 877) groups. The light blue sector represents family history of CRC, and light purple sector represents no family history of CRC; I and J: Pie charts showing the proportion of family history of polyps in L-CRC (total = 1132) and R-CRC (total = 877) groups. The light blue sector represents family history of polyps, and light purple sector represents no family history of polyps. All statistical analyses yielded P < 0.001. Data were analyzed using an independent samples t-test for continuous variables (A) and χ² tests for categorical variables (B-G). L-CRC: Left-sided colorectal cancer; R-CRC: Right-sided colorectal cancer; CRC: Colorectal cancer.