Table 2.
Clinicopathological characteristic of lung cancer patients for survival analysis
|
All patients (N = 52,472) |
||
|---|---|---|
| Variables | N | % |
| Sex | ||
| Male | 26,858 | 51.2 |
| Female | 25,614 | 48.8 |
| Race | ||
| Non-Hispanic whites | 43,818 | 83.5 |
| Non-Hispanic others | 8654 | 16.5 |
| Age (year) | ||
| ≤ 68 | 23,070 | 44.0 |
| > 68 | 29,402 | 56.0 |
| Median (range) | 70 (18–100) | |
| Grade | ||
| Well | 5579 | 10.6 |
| Moderate | 16,142 | 30.8 |
| Poor | 16,855 | 32.1 |
| Undifferentiated | 1745 | 3.3 |
| Unknown | 12,151 | 23.2 |
| Tumor Location | ||
| Main bronchus | 1271 | 2.4 |
| Upper lobe | 30,463 | 58.0 |
| Middle lobe | 2423 | 4.6 |
| Lower lobe | 15,734 | 30.0 |
| Overlapping lesion of lung | 607 | 1.2 |
| Unknown | 1974 | 3.8 |
| Radiotherapy | ||
| No | 37,612 | 71.7 |
| Yes | 14,508 | 27.6 |
| Unknown | 352 | 0.7 |
| Chemotherapy | ||
| No | 39,127 | 74.6 |
| Yes | 13,345 | 25.4 |
| Marital status | ||
| Married | 27,089 | 51.6 |
| Non-married | 23,504 | 44.8 |
| Unknown | 1879 | 3.6 |
| Surgical treatment | ||
| None | 22,136 | 42.2 |
| Limited resection | 5784 | 11.0 |
| Lobectomy | 23,228 | 44.2 |
| Pneumonectomy | 984 | 1.9 |
| Unknown surgical approach | 29 | 0.1 |
| Unknown | 311 | 0.6 |
| Histological subtypes | ||
| Squamous cell carcinoma | 16,691 | 31.8 |
| Adenocarcinoma | 23,406 | 44.6 |
| Non-squamous and non-adenocarcinoma NSCLC | 5128 | 9.8 |
| Small-cell carcinoma | 2583 | 4.9 |
| Unknown non-sarcoma carcinoma | 477 | 0.9 |
| Unknown NSCLC | 4187 | 8.0 |
| T classification | ||
| T1a | 1752 | 3.3 |
| T1b | 9439 | 18.0 |
| T1c | 8412 | 16.1 |
| T2a | 11,509 | 21.9 |
| T2b | 3784 | 7.2 |
| T3 | 4180 | 8.0 |
| T4 | 11,043 | 21.0 |
| Tx (occult) | 2353 | 4.5 |
NSCLC non-small cell lung cancer