Epidemiology and prognostic nomogram for locally advanced gastric signet ring cell carcinoma: A population-based study

Figure 2 Joinpoint analysis of the incidence of gastric signet ring cell carcinoma and gastric adenocarcinoma. A: Overall gastric signet ring cell carcinoma (GSRC); B: Overall gastric adenocarcinoma (GA); C: GSRC by sex; D: GA by sex. ¹Indicates that the annual percentage change (APC) is significantly different from zero at the alpha = 0.05 level. Final Selected Model: 2 Joinpoints. ²Indicates that the APC is significantly different from zero at the alpha = 0.05 level. Final Selected Model: Male -2 Joinpoints, Female - 2 Joinpoints. Rejected Parallelism. APC: Annual percentage change.