Table VI.

Analysis of the statistically significant parameters for survival using the Cox regression model

Parameter	B ± SE	P-value	Odds ratio (95% CI)
Age (> 63)	1.27 ±0.65	0.049	3.55 (1.01–12.68)
Hb (≤ 12.8)	2.08 ±1.04	0.045	7.99 (1.05–61.01)
N(+)/total N (> 0.0435)	1.18 ±0.52	0.025	3.24 (1.16–9.03)

Cox regression – backward stepwise (Wald) method. B – regression coefficients, SE – standard error, CI – confidence interval.