Table 1 Clinical characteristic of lung cancer patients from Surveillance Epidemiology and End Results database
All patients (N = 305,054) | ||
|---|---|---|
Variables | N | % |
Sex | ||
Male | 162,448 | 53.3 |
Female | 142,606 | 46.7 |
Race | ||
Non-Hispanic whites | 248,125 | 81.3 |
Non-Hispanic others | 56,929 | 18.7 |
Age (year) | ||
≤ 68 | 159,281 | 52.2 |
> 68 | 145,773 | 47.8 |
Median (range) | 68 (18–104) | |
z Grade | ||
Well | 16,073 | 5.3 |
Moderate | 52,350 | 17.2 |
Poor | 85,221 | 27.9 |
Undifferentiated | 14,184 | 4.6 |
Unknown | 13,7226 | 45.0 |
Tumor Location | ||
Main bronchus | 15,819 | 5.2 |
Upper lobe | 155,796 | 51.1 |
Middle lobe | 13,314 | 4.4 |
Lower lobe | 77,101 | 25.3 |
Overlapping lesion of lung | 3973 | 1.2 |
Unknown | 39,051 | 12.8 |
Radiotherapy | ||
No | 174,025 | 57.0 |
Yes | 128,452 | 42.2 |
Unknown | 2577 | 0.8 |
Chemotherapy | ||
No | 159,187 | 52.2 |
Yes | 145,867 | 47.8 |
Marital status | ||
Married | 156,432 | 51.3 |
Non-married | 136,241 | 44.6 |
Unknown | 12,381 | 4.1 |
Surgical treatment | ||
None | 233,739 | 76.5 |
Limited resection | 14,070 | 4.6 |
Lobectomy | 51,453 | 16.8 |
Pneumonectomy | 4030 | 1.4 |
Unknown surgical approach | 729 | 0.2 |
Unknown | 1543 | 0.5 |
Year at diagnosis | ||
2004 | 23,625 | 7.7 |
2005 | 22,774 | 7.6 |
2006 | 24,250 | 7.9 |
2007 | 25,094 | 8.2 |
2008 | 25,384 | 8.3 |
2009 | 25,936 | 8.5 |
2010 | 25,606 | 8.4 |
2011 | 25,631 | 8.4 |
2012 | 26,120 | 8.6 |
2013 | 26,344 | 8.6 |
2014 | 26,874 | 8.8 |
2015 | 27,416 | 9.0 |
Occult lung cancer | ||
Yes | 2958 | 1.0 |
No | 302,096 | 99.0 |