CBX8 and gastric cancer: The results showed that high mRNA expression levels of CBX3 (HR 0.722, 95% CI 0.547–0.954, P = 0.022) and CBX8 (HR 0.688, 95% CI 0.522–0.908, P = 0.008) were associated with prolonged OS in GC patients (Supplementary Table 10) after adjusting for age, gender, T and N status.