Table 1. Demographic and clinical characteristics for patients in the lobectomy and limited resection groups.
| Characteristics | Lobectomy | Limited resection | P value |
|---|---|---|---|
| All cases (n, %) | 32 (100.0) | 33 (100.0) | – |
| Sex (n, %) | 0.026† | ||
| Male | 20 (63.0) | 11 (33.0) | |
| Female | 12 (37.0) | 22 (67.0) | |
| Age (median, range) (years) | 63 (49.0–75.0) | 62 (42.0–74.0) | 0.264 |
| Preoperative CEA (median, range) (ng/mL) | 1.9 (0.5–6.8) | 2.0 (0.5–23.4) | 0.524 |
| C/T ratio* on CT (median, range) (%) | 93 (0–100.0) | 93 (0–100.0) | 0.578 |
| Tumor histology (n, %) | 0.197 | ||
| Adenocarcinoma | 28 (87.0) | 32 (97.0) | |
| Others | 4 (13.0) | 1 (3.0) | |
| Lymphadenectomy extent (n, %) | 0.009† | ||
| Sampling or hilum | 6 (19.0) | 17 (52.0) | |
| Mediastinum | 26 (81.0) | 16 (48.0) | |
| Pathological tumor size (median, range) (cm) | 1.6 (0.9–2.3) | 1.5 (0.8–3.2) | 0.070 |
| Pathological stage (n, %) | 0.672 | ||
| I | 29 (91.0) | 31 (94.0) | |
| II or III | 3 (9.0) | 2 (6.0) |
*, the maximum diameter of consolidation divided by the maximum tumor diameter; †, indicates significance; CEA, carcinoembryonic antigen; CT, computed tomography.