Table 1.
Basic characteristics of study participants
| Characteristics | Emphysema-only (n = 10) | LC-only (n = 11) | LC with emphysema (n = 19) | P among 3 groups | P between LC (n = 30) and emphysema-only (n = 10) |
|---|---|---|---|---|---|
| Race | 0.056 | 0.956 | |||
| White | 9 | 8 | 19 | ||
| Hispanic and Black | 1 | 3 | - | ||
| Age, years | 0.899 | 0.989 | |||
| Median (range) | 61 (58-78) | 65 (51-80) | 64 (50-77) | ||
| Gender | 0.450 | 0.297 | |||
| Male | 8 | 10 | 18 | ||
| Female | 2 | 1 | 1 | ||
| Smoking status | 0.301 | 0.147 | |||
| Current | - | 2 | 4 | ||
| Former | 10 | 9 | 15 | ||
| Smoking PPY | 0.620 | 0.462 | |||
| Median (range) | 55 (30-120) | 54 (20-129) | 60 (22-160) | ||
| Tissue location | 0.009 | 0.002 | |||
| Lower lobe | - | 5 | 11 | ||
| Upper lobe | 10 | 6 | 8 | ||
| Histology | - | - | |||
| Adenocarcinoma | - | 7 | 6 | ||
| Squamous cell carcinoma | - | 3 | 11 | ||
| Small-cell | - | 1 | 2 | ||
| Tumor stage# | - | - | |||
| Early (T1-T2) | - | 8 | 13 | ||
| Advanced (T3) | - | 1 | 3 | ||
| FEV1 (% predicted) | < 0.0001 | < 0.0001 | |||
| Median (range) | 26 (17-39) | 94 (73-116) | 60 (32-82) | ||
| FEV1/FVC (%) | < 0.0001 | < 0.0001 | |||
| Median (range) | 30.5 (20-39) | 82 (70-100) | 61 (34-71) |
Abbreviations: LC, lung cancer; PPY, pack-year; FEV1, forced expiratory volume in one second; FVC,forced vital capacity.
#
Numbers do not add up to the column totals due to missing values.