TLR3 and squamous cell carcinoma: TLR3 expression was significantly associated with prognosis strongly in subjects with adenocarcinoma (p = 0.0117; HR = 0.389, Cl = 0.187–0.811; n = 117) (Figure 3A), whereas no significant association between TLR3 expression on tumor cells and prognosis was observed considering only squamous carcinoma (p = 0.8826; HR = 1.056, Cl = 0.512–2.176; n = 52) (Figure 3B).