Table 1 Comparison of baseline characteristics between the two groups
Characteristics | Study group (n = 53) | Control group (n = 53) | P |
|---|---|---|---|
Gender, n (%) | > 0.05 | ||
Male | 41 (77.4%) | 40 (75.5%) | |
Age, year, mean ± standard deviation | 59.2 ± 3.9 | 59.2 ± 3.9 | > 0.05 |
Smoking, n | 17 | 12 | > 0.05 |
Alcohol abuse, n | 5 | 6 | > 0.05 |
COPD, n | 14 | 11 | > 0.05 |
Diabetes, n | 10 | 12 | > 0.05 |
Neoadjuvant therapy, n | 4 | 6 | > 0.05 |
Location of cancer, n (%) | |||
Upper | 3 (5.7%) | 4 (7.5%) | > 0.05 |
Middle | 39 (73.6%) | 36 (67.9%) | > 0.05 |
Lower | 11 (20.8%) | 13 (24.5%) | > 0.05 |
Cancer stage, I/II/III/IV, n | 17/9/24/3 | 19/13/19/2 | > 0.05 |