Table 3.

Univariate analysis of different immunohistochemical markers concerning overall survival.

Immunhistochemical marker	Hazard Ratio (95% CI)	p
CD56	0.295 (0.071–1.226)	0.09
Chromogranin-A	0.749 (0.430–1.303)	0.31
Synaptophysin	0.546 (0.308–0.966)	0.03
TTF-1	0.546 (0.247–1.211)	0.14
Hif1a H score	1.000 (0.993–1.006)	0.95
GLUT-1 H score	1.006 (0.998–1.013)	0.13
PD-L1 expression	0.933 (0.829–1.050)	0.25
MIB-1	1.001 (0.982–1.021)	0.90