Table 1.
Descriptive characteristics of 78 high-risk patients who had a premalignant or malignant lung lesion diagnosed on bronchoscopy-aided biopsy at Roswell Park Cancer Institute and 35 patients who underwent lung cancer resection at the University of Chicago Hospitals
| Characteristics | Patients with premalignant lesions* (n = 78), n (%) | Patients with adenocarcinoma (n =16), n (%) | Patients with squamous cell carcinoma (n = 19), n (%) |
|---|---|---|---|
| Age | |||
| Mean (SD) | 61.2 (10.0) | 60.1 (10.7) | 68.5 (7.4) |
| Range | 33–78 | 40–80 | 52–80 |
| Sex | |||
| Female | 19 (24) | 6 (38) | 9 (47) |
| Male | 59 (76) | 10 (62) | 10 (53) |
| Race | |||
| White | 103 (97) | 16 (100) | 11 (58) |
| Black | 3 (3) | — | 8 (42) |
| Smoking status | |||
| Never | 2 (3) | 3 (19) | 1 (5) |
| Former | 47 (60) | 10 (63) | 10 (53) |
| Current | 29 (37) | 2 (13) | 5 (26) |
| Unknown | — | 1 (6) | 3 (16) |
| Previous lung cancer | |||
| Yes | 16 (20) | — | — |
| No | 62 (80) | ||
| COPD | |||
| Yes | 58 (74) | — | — |
| No | 20 (26) | ||
| Asbestos exposure | |||
| Yes | 41 (53) | — | — |
| No | 37 (47) | ||
| Tumor stage | |||
| I | — | 11 (69) | 7 (37) |
| II | — | 6 (31) | |
| III | 5 (31) | 5 (26) | |
| Unknown | — | 1 (5) | |
Abbreviation: COPD, chronic obstructive pulmonary disease.
*
Includes histologic diagnoses of metaplasia, mild dysplasia, moderate dysplasia, and severe dysplasia.