Research Article
Incorporating the Number of PLN into the AJCC Stage Could Better Predict the Survival for Patients with NSCLC: A Large Population-Based Study
Table 1
Non-small cell lung cancer (NSCLC) patient characteristics from SEER database.
| Variables | Number | % |
| Age | | | <65 | 6158 | 38.9 | ≥65 | 9662 | 61.1 |
| Race | | | White | 13483 | 85.2 | Black | 1244 | 7.8 | Others | 1093 | 6.9 |
| Sex | | | Female | 7513 | 47.5 | Male | 8307 | 52.5 |
| Histology | | | Adenocarcinoma | 9587 | 60.6 | Squamous | 6233 | 39.4 |
| T stage | | | T1 | 5563 | 35.2 | T2 | 7910 | 50.0 | T3 | 1047 | 6.6 | T4 | 1300 | 8.2 |
| pN stage | | | pN0 | 10039 | 63.5 | pN1 | 3227 | 20.4 | pN2 | 2505 | 15.8 | pN3 | 49 | 0.3 |
| nN stage | | | nN0 | 10304 | 65.1 | nN1–3 | 3669 | 23.2 | nN4- | 1847 | 11.7 |
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