Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
患者基本特征表（n=131）
Basic characteristics of patients (n=131)
| Category | Scope of resection | Number of patients (Male/Female) | Smoking history (Yes/No) | Tumor size (cm) | Age (yr) |
| 1 | Left upper lobe | 21 (14/7) | 17/4 | 2.8±1.9 | 68.17±3.21 |
| 2 | Left lower lobe | 38 (22/16) | 29/9 | 3.5±2.3 | 66.12±4.24 |
| 3 | Right upper lobe | 20 (11/9) | 13/7 | 2.3±1.6 | 70.58±3.01 |
| 4 | Right middle lobe | 17 (6/11) | 12/5 | 3.0±1.4 | 65.73±2.54 |
| 5 | Right lower lobe | 35 (19/16) | 23/12 | 3.2±1.8 | 69.25±3.73 |
