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. 2015 Feb 2;6(5):597–604. doi: 10.1111/1759-7714.12228

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© 2015 The Authors. Thoracic Cancer published by Tianjin Lung Cancer Institute and Wiley Publishing Asia Pty Ltd.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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(a) One, three, and five-year overall survival (OS) rates and (b) disease-free survival (DFS) rates of patients with negative or positive lymph nodes. The one, three, and five-year OS rates of patients with negative lymph nodes were 93.6%, 76.0%, and 66.0%, respectively; the one, three, and five-year OS rates of patients with positive lymph nodes were 89.2%, 51.3%, and 38.9%, respectively (Fig 3a, P < 0.01). The one, three, and five-year DFS rates of patients with negative lymph nodes were 91.2%, 81.8%, and 73.6%, respectively; the one, three, and five-year DFS rates of patients with positive lymph nodes were 79.7%, 48.3%, and 42.9%, respectively (P < 0.001, Fig 3b). , NO; , N+.

Inline graphic — (a) One, three, and five-year overall survival (OS) rates and (b) disease-free survival (DFS) rates of patients with negative or positive lymph nodes. The one, three, and five-year OS rates of patients with negative lymph nodes were 93.6%, 76.0%, and 66.0%, respectively; the one, three, and five-year OS rates of patients with positive lymph nodes were 89.2%, 51.3%, and 38.9%, respectively (Fig 3a, P < 0.01). The one, three, and five-year DFS rates of patients with negative lymph nodes were 91.2%, 81.8%, and 73.6%, respectively; the one, three, and five-year DFS rates of patients with positive lymph nodes were 79.7%, 48.3%, and 42.9%, respectively (P < 0.001, Fig 3b). , NO; , N+.