Table III.
Association between PD-L2 expression and clincopathological characteristics of patients.
| PD-L2 expression | |||
|---|---|---|---|
| Characteristic | + | − | P-value |
| No. of patients | 22 | 26 | |
| Age, yearsa | 60.6±7.1 | 58.2±8.0 | 0.919 |
| Gender | |||
| Male | 15 | 18 | 0.938 |
| Female | 7 | 8 | |
| Histology | |||
| SCC | 10 | 13 | 0.753 |
| ADC | 12 | 13 | |
| Differentiation | |||
| Well | 19 | 21 | 0.897 |
| Poor | 3 | 5 | |
| Tumor stage | |||
| I/II | 16 | 18 | 0.791 |
| III | 8 | 6 | |
| Lymph node metastasis | |||
| No | 15 | 15 | 0.454 |
| Yes | 7 | 11 | |
a
Data presented as mean ± standard deviation. PD-L2, programmed cell death protein 1 ligand 2; SCC, squamous cell carcinoma; ADC, adenocarcinoma.