Table 4.
Characteristics of lung cancer in patients with IPF or non-IPF ILD compared to Pennsylvania state data
| Variables | Lung cancer with IPF | Lung cancer with non-IPF ILD | Lung cancer in general population in Pennsylvania | p-value (column 1 vs. 3) | |||
|---|---|---|---|---|---|---|---|
| N | Results | N | Results | N | Results | ||
| Laterality | 31 | 16 | 100,949 | 0.4 | |||
| Left | 14 (45%) | 7 (44%) | 41,745 (41%) | ||||
| Right | 16 (52%) | 7 (44%) | 57,566 (57%) | ||||
| Bilateral | 1 (3%) | 2 (12%) | 1638 (2%) | ||||
| Primary site | 27 | 13 | 85,087 | < 0.001 | |||
| Upper lobe | 8 (27%) | 6 (46%) | 53,288 (63%) | ||||
| Lower lobe | 17 (63%) | 6 (46%) | 30,422 (36%) | ||||
| Others | 2 (7%) | 1 (8%) | 1377 (2%) | ||||
| Histology | 27 | 16 | 104,954 | 0.07 | |||
| SCC | 11 (41%) | 3 (19%) | 30,596 (29%) | ||||
| Adenocarcinoma | 7 (26%) | 10 (63%) | 49,217 (47%) | ||||
| Other | 9 (33%) | 3 (19%) | 25,141 (24%) | ||||
| Stage | 29 | 16 | 83,994 | 0.6 | |||
| I | 9 (31%) | 4 (25%) | 19,000 (23%) | ||||
| II | 2 (7%) | 1 (6%) | 4312 (5%) | ||||
| III | 7 (24%) | 6 (38%) | 21,730 (26%) | ||||
| IV | 11 (38%) | 5 (31%) | 38,952 (46%) | ||||
Definition of abbreviations: SCC squamous cell cancer, NA not available. Column 1 = Lung cancer with IPF; column 2 = Lung cancer with non-IPF ILD; column 3 = Lung cancer in general population in Pennsylvania