Table 4.
Characteristics of patients with lung cancer or second lung cancers after PSM analysis
| Variable | Lung cancer n = 165 | Second lung cancer n = 166 | p value |
|---|---|---|---|
| Age (years) | 64.62 ± 10.35 | 63.07 ± 10.60 | 0.180 |
| SUVmax of tumor | 2.57 ± 2.80 | 4.00 ± 3.90 | 0.002 |
| Tumor size (cm) | 1.51 ± 0.78 | 1.73 ± 1.14 | 0.045 |
| CEA (ng/ml) | 4.20 ± 9.39 | 4.10 ± 7.93 | 0.922 |
| Dissected lymph nodes (n) | 10.99 ± 6.75 | 10.74 ± 6.63 | 0.741 |
| FEV1 (%) | 85.11 ± 16.60 | 84.87 ± 13.94 | 0.892 |
| GGO ratio | 0.50 ± 0.40 | 0.47 ± 0.41 | 0.619 |
Statistical significance is defined as p < 0.05 (Bold)