Figure 2

Radar charts of AICS (lung) amino acid concentrations among patients with a pre-operative AICS (lung) rank of B-C. Receiver operating characteristic curve analysis was performed for six amino acids. Areas under the receiver operating characteristic curves were used to determine whether each amino acid could discriminate between patients with lung cancer and healthy controls. (a) Patients with a pre-operative AICS (lung) rank of B–C who did not experience recurrence. (b) Patients with a pre-operative AICS (lung) rank of C who did not experience recurrence. (c) Patients with a pre-operative AICS (lung) rank of B–C who did experience recurrence. Only minor changes in post-operative amino acid concentrations were observed. Black bold lines indicate points where the area under the receiver operating characteristic curve was 0.5. Abbreviations: AICS (lung), lung-specific AminoIndexTM Cancer Screening.