标红的代表什么意思？回归分析结果中那个结果？谢谢

与未加TKIs辅助治疗相比, EGFR-TKIs辅助治疗可延长患者OS(OS: OR, 0.63; 95% CI, 0.46 to 0.87, P = 0.004; heterogeneity I2 = 61%, P = 0.008