Research Article
A Novel Nomogram including AJCC Stages Could Better Predict Survival for NSCLC Patients Who Underwent Surgery: A Large Population-Based Study
Table 1
Baseline clinicopathological characteristics of all patients and those in the training and validation cohorts.
| | Variables | All cohort (n = 19617) | Training cohort (n = 13732) | Validation cohort (n = 5885) | |
| | Age | | | | 0.026 | | <60 | 4203(21.4) | 4958 (36.1) | 1302 (22.1) | | | 60–69 | 7054(36.0) | | 2096 (35.6) | | | 70–79 | 6588(33.6) | 4619 (33.6) | 1969 (33.5) | | | >80 | 1772(9.0) | 1254 (9.1) | 518 (8.8) | |
| | Race | | | | 0.019 | | White | 16312(83.2) | 11445 (83.3) | 4867 (82.7) | | | Black | 1814(9.2) | 1262 (9.2) | 552 (9.4) | | | Others | 1491(7.6) | 1025 (7.5) | 466 (7.9) | |
| | Sex | | | | 0.013 | | Male | 9807(50.0) | 6839 (49.8) | 2968 (50.4) | | | Female | 9810(50.0) | 6893 (50.2) | 2917 (49.6) | |
| | Stage | | | | 0.017 | | I | 11543(58.8) | 8047 (58.6) | 3496 (59.4) | | | II | 4572(23.3) | 3226 (23.5) | 1346 (22.9) | | | III | 3502(17.9) | 2459 (17.9) | 1043 (17.7) | |
| | Histology | | | | 0.009 | | Adenocarcinoma | 12278(62.6) | 8579 (62.5) | 3702 (62.9) | | | Squamous | 7336(37.4) | 5153 (37.5) | 2183 (37.1) | |
| | Surgery | | | | 0.014 | | Complete resection | 1092(5.6) | 778 (5.7) | 314 (5.3) | | | Partial resection | 18525(94.4) | 12954 (94.3) | 5571 (94.7) | | | Positive nodes | | | | 0.005 | | Yes | 4812(24.5) | 3360 (24.5) | 1452 (24.7) | | | No | 14805(75.5) | 10372 (75.5) | 4433 (75.3) | |
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