TABLE 2.
Baseline Patient Characteristics
| Characteristic | Cohort Patients (n = 23) | All Patients (n = 30) | p a |
|---|---|---|---|
| Age (y) | 76 (60–87) | 78 (60–87) | 0.75 |
| Sex (no.) | 0.80b | ||
| Women | 13 (57) | 18 (60) | |
| Men | 10 (43) | 12 (40) | |
| Performance status | 0.78b | ||
| 0 | 3 (13) | 4 (13) | |
| 1 | 15 (65) | 17 (57) | |
| 2 | 5 (22) | 9 (30) | |
| Clinical stage (no.) | NAb | ||
| IA (T1N0M0) | 23 (100) | 30 (100) | |
| Histologic result | |||
| Squamous | 10 (43) | 12 (40) | 0.84b |
| Adenocarcinoma | 11 (48) | 14 (47) | |
| Other non–small cell carcinoma | 2 (9) | 3 (10) | |
| Poorly differentiated non–small cell carcinoma | 0 (0) | 1 (3) | |
| Size of nodule (cm) | 2 (1.3–2.9) | 2 (1.3–2.9) | 0.96 |
| Tumor standardized uptake value | 6.4 (0–14) | 6.4 (0–14) | 0.89 |
| Baseline forced expiratory volume in 1 s (mL) | 870 (430–2010) | 1040 (430–2010) | 0.57 |
| Baseline FEV1 (% of predicted) | 49 (13–102) | 48 (13–102) | 0.83 |
| Baseline forced vital capacity (mL) | 1840 (1090–2640) | 1840 (1090–2810) | 0.78 |
| Baseline diffusion capacity of the lung for carbon dioxide (% of predicted) | 41 (13–67) | 45 (13–67) | 0.74 |
Note—Values are median with range in parentheses or number with percentage in parentheses. NA = not applicable.
a
Wilcoxon rank sum test.
b
Chi-square test.