Survival analysis showed that in both cohorts, the TGFB-HIGH group exhibited better overall survival (OS) (Local-SCLC: hazard ratio = 0.0238, (95% CI, 0.13-0.84), p = 0.0238, Figure 3(a); George-SCLC: hazard ratio = 0.0315, (95% CI, 0.28-0.98), p = 0.0315, Figure 3(b)). Here, TGFB1 is linked to small cell lung carcinoma.