Epidermal Growth Factor Receptor Mutations and Their Prognostic Value with Carcinoembryonic Antigen in Pathological T1 Lung Adenocarcinoma

Figure 5

Kaplan-Meier curves after surgery in lung adenocarcinoma patients with tumours with a maximum diameter of 3 cm or less, excluding those at stage 0. (a) Disease-free and (b) overall survival stratified by preoperational serum carcinoembryonic antigen levels with a cut-off of 2.12 ng/mL. (c) Disease-free and (d) overall survival in patients with carcinoembryonic antigen levels below 2.12 ng/mL and stratified by mutations in exon 19 and 21. (e) Disease-free and (f) overall survival in patients with carcinoembryonic antigen levels above 2.12 ng/mL and stratified by mutations in exon 19 and 21.

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