Table 2. The patients characteristics in each summary stage.
| Variable | Category | Included patient (N=62) | Summary stage |
P value | ||
|---|---|---|---|---|---|---|
| Localized (N=17) | Regional (N=17) | Distant (N=7) | ||||
| Age at diagnosis | Median [range] | 65 [15–86] | 64 [39–86] | 57 [15–80] | 63 [43–82] | 0.024 |
| Mean | 62.31±2.12 | 69.35±2.21 | 57.88±4.32 | 65.43±3.48 | ||
| Gender | Male | 36 | 7 | 9 | 3 | 0.068 |
| Female | 26 | 10 | 8 | 4 | ||
| Race | White | 40 | 15 | 8 | 1 | <0.001 |
| Black | 4 | 0 | 2 | 0 | ||
| Other | 18 | 2 | 7 | 6 | ||
| Region (CHSDA) | East | 20 | 8 | 8 | 0 | 0.016 |
| Northern Plains | 7 | 2 | 0 | 1 | ||
| Pacific Coast | 33 | 6 | 9 | 6 | ||
| Southwest | 1 | 1 | 0 | 0 | ||
| Primary site | Lung, NOS | 4 | 0 | 0 | 1 | 0.712 |
| Upper lobe, lung | 25 | 10 | 9 | 0 | ||
| Middle lobe, lung | 5 | 0 | 1 | 3 | ||
| Lower lobe, lung | 23 | 6 | 7 | 1 | ||
| Overlapping lesion of lung | 1 | 0 | 0 | 1 | ||
| Main bronchus | 3 | 1 | 0 | 1 | ||
| Surgery | Yes | 41 | 16 | 14 | 2 | <0.001 |
| No | 11 | 1 | 3 | 5 | ||
| Radiation | Yes | 14 | 1 | 6 | 2 | <0.001 |
| No | 47 | 16 | 11 | 5 | ||