1.
患者特点及临床因素的单因素分析
Patient characteristics and univariate analysis according to clinical factors
| Patient characteristics | n | 3-yr survival rate | P |
| Alive | |||
| Yes | 327 (75.5%) | - | |
| No | 106 (24.5%) | - | |
| Gender | |||
| Male | 266 (61.4%) | 77.53% | 0.001, 8 |
| Female | 167 (38.6%) | 89.22% | |
| Age (yr) | |||
| ≥70 | 109 (25.2%) | 70.64% | 0.000, 1 |
| < 70 | 324 (74.8%) | 85.85% | |
| Histology | |||
| Adenocarcinoma | 278 (64.2%) | 87.96% | < 0.000, 1 |
| Squamous cell carcinoma | 98 (22.6%) | 79.59% | |
| Adenosquamous cell carcinoma | 50 (11.5%) | 58.00% | |
| Large-cell carcinoma | 3 (0.7%) | 66.67% | |
| Other types | 4 (1.0%) | 57.14% | |
| Smoking status | |||
| ≥400 | 172 (39.7%) | 77.59% | 0.035, 2 |
| < 400 | 261 (60.3%) | 85.00% | |
| Greatest dimension of tumor (cm) | |||
| ≤2 | 103 (23.8%) | 95.15% | < 0.000, 1 |
| 2 < T≤3 | 126 (29.1%) | 85.71% | |
| 3 < T≤5 | 142 (32.8%) | 74.80% | |
| 5 < T≤7 | 43 (9.9%) | 60.47% | |
| > 7 | 19 (4.4%) | 68.42% | |
| T stage | |||
| T1a | 33 (7.6%) | 90.91% | < 0.000, 1 |
| T1b | 22 (5.1%) | 81.82% | |
| T2a | 309 (71.4%) | 85.48% | |
| T2b | 38 (8.8%) | 57.89% | |
| T3 | 31 (7.1%) | 67.74% | |
| TNM stage | |||
| Ⅰa | 55 (12.7%) | 90.91% | < 0.000, 1 |
| Ⅰb | 309 (71.4%) | 81.82% | |
| Ⅱa | 38 (8.8%) | 85.48% | |
| Ⅱb | 31 (7.1%) | 57.89% | |
| Type of resection | |||
| Lobectomy | 365 (84.3%) | 82.51% | 0.872, 8 |
| Bilobectomy | 32 (7.4%) | 81.25% | |
| Pneumonectomy | 19 (4.4%) | 100.00% | |
| Sleeve resection | 17 (3.9%) | 82.35% | |
| Lympho invasion | |||
| Yes | 11 (2.5%) | 63.64% | 0.073, 8 |
| No | 422 (97.5%) | 82.46% | |
| Vascular invasion | |||
| Yes | 8 (1.8%) | 62.50% | 0.110, 0 |
| No | 425 (98.2%) | 82.35% | |
| Adjuvant chemotherapy | |||
| ≥1 cycle | 181 (41.8%) | 87.29% | 0.013, 3 |
| No | 252 (58.2%) | 78.26% | |
| Visceral pleural involvement | |||
| Yes | 331 (76.4%) | 81.06% | 0.869, 8 |
| No | 102 (23.6%) | 85.87% |