Figure 6. Meta-analysis of relative risk (RR) for the correlation between TIL status and OS.
(A) Overall population; (B) HER2-positive disease; (C) TNBC. RR values with 95% confidence intervals for survival are associated with high versus low TILs; an RR < 1 represents a lower risk of death or progression. The analysis showed that patients with a high TIL level had significantly improved OS. Abbreviations: TILs, tumor-infiltrating lymphocyte; TNBC, triple-negative breast cancer; HER2, human epithelial growth factor receptor 2.