Table 6.

Cox proportional-hazards regression model* for NB patients overall survival

Covariate	P	OR**	95% CI***of OR
High stage	0.0238	11.3891	1.3949 to 92.9926
VEGF expression score	0.3831	1.1790	0.8159 to 1.7038
Unfavourable histology	0.0073	16.4610	2.1432 to 126.4302
Age older than 18 months	0.1988	3.0418	0.5624 to 16.4532
Without transplantation	0.0295	3.2280	1.1298 to 9.2227

*Overall model fit χ² = 42.105 P < 0.0001

Abbreviations: **Odds ratio; *** Confidence interval