Table 2. Multivariate analyses of PRC1 protein levels and the other clinical prognostic markers related to OS in lung SCC.

Item	OS
	HR (95% CI)	P
Age (≥65/<65 years)	2.346 (0.85–3.446)	0.216
Sex (female/male)	1.458 (0.735–4.249)	0.148
Size of tumor (>3/≤3 cm)	1.482 (0.567–4.215)	0.257
Grade (high/low)	0.832 (0.358–2.362)	0.472
Lymph node stage (N1-3/N0)	1.841 (1.359–4.057)	0.025*
p-TNM stage (III vs. I+II)	2.042 (1.321–3.921)	0.036*
PRC1 level (high/low)	1.532 (1.251–3.325)	0.021*

*, P<0.05.