Table 2.
De novo subgroup analysis
| Central | Peripheral | Total | |||||
|---|---|---|---|---|---|---|---|
| Count | Percent | Count | Percent | Count | Percent | ||
| No. of patients | 11 | 37.9 | 18 | 62.1 | 29 | 100 | |
| Age | Range | 54–76 | 52–81 | ||||
| Mean | 68 | 69 | 68 | ||||
| Sex | Male | 8 | 72.7 | 10 | 55.6 | 18 | 62.1 |
| Female | 3 | 27.3 | 8 | 44.4 | 11 | 37.9 | |
| Race | Caucasian | 11 | 100.0 | 13 | 72.2 | 24 | 82.8 |
| African American | 0 | 0.0 | 5 | 27.8 | 5 | 17.2 | |
| Others | 0 | 0.0 | 0 | 0.0 | |||
| Smoking status | Current | 4 | 36.4 | 5 | 27.8 | 9 | 31.0 |
| Past (quit >6 months) | 7 | 63.6 | 13 | 72.2 | 20 | 69.0 | |
| Never | 0 | 0 | 0 | ||||
| PPI use | 3 | 27.3 | 2 | 11.1 | 5 | 17.2 | |
| Inhaler use | 6 | 54.5 | 10 | 55.6 | 16 | 55.2 | |
| Right lung | Total | 5 | 45.5 | 8 | 44.4 | 13 | 44.8 |
| Upper | 3 | 27.3 | 4 | 22.2 | |||
| Middle | 2 | 18.2 | 0 | 0.0 | |||
| Lower | 0 | 0.0 | 4 | 22.2 | |||
| Left lung | Total | 6 | 54.5 | 9 | 50.0 | 15 | 51.7 |
| Upper | 2 | 18.2 | 1 | 5.6 | |||
| Lower | 1 | 9.1 | 8 | 44.4 | |||