Table 2.

Five-Year Overall Survival Analysis.

Feature	Univariate (Kaplan-Meier)		Cox Multiple Regression
	% Survival	P	P	Hazard Ratio	95% CI
Stage
1–2–4 S	85.0
3–4	54.8	<.001	.03	3.09	1.47–6.48
MYCN status
Non amp	71.9	<.001	<.001	3.15	1.86–5.36
Amp	41.0
Age
<18 mo	86.5	<.001	.013	2.31	1.19–4.48
≥.18 mo	51.1
p53 codon 72
Arg/Arg or Arg/Pro	67.0	.014	.024	2.74	1.14–6.55
Pro/Pro	30.0

CI indicates confidence interval.