Table 4.
Correlation of PD1 and PDL1 gene expression with clinical parameters of squamous cell carcinoma lung cancer patients in the validation dataset.
| PD1 | PDL1 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | Mean ± SD | Median | P-value a | P-value b | Mean ± SD | Median | P-value a | P-value b | |
| Gender | Female | 6.94 ± 0.12 | 6.93 | Ref. | Ref. | 7.43 ± 0.66 | 7.21 | Ref. | Ref. |
| Male | 6.93 ± 0.12 | 6.91 | 0.5671 | 0.4460 | 7.43 ± 0.67 | 7.23 | 0.9884 | 0.7380 | |
| Stage | 1 | 6.96 ± 0.12 | 6.95 | Ref. | Ref. | 7.34 ± 0.59 | 7.18 | Ref. | Ref. |
| 2+3 | 6.92 ± 0.12 | 6.91 | 0.0003 | 0.0004 | 7.48 ± 0.71 | 7.28 | 0.0205 | 0.0736 | |
| Survival | Alive | 6.93 ± 0.13 | 6.92 | Ref. | Ref. | 7.48 ± 0.69 | 7.26 | Ref. | Ref. |
| Dead | 6.93 ± 0.12 | 6.92 | 0.8604 | 0.9513 | 7.38 ± 0.64 | 7.21 | 0.0988 | 0.0857 | |
SD, standard deviation; Ref., reference group.
a
P value for Independent t-test.
b
P value for Mann-Whitney U test.
Bold face: statistically significant (P value<0.05).