Table 4.

Cox proportional hazards regression analysis for patients aged <15 y at diagnosis comparing SEER vs NRCT (all age-adjusted unless otherwise stated)

	Survival	Person Years at Risk	N Subjects	N Deaths	Hazard Ratio	95% CI	P
All ages
Pilocytic astrocytoma	10 y	12934	1916	78	0.69	0.44–1.10	.117
Anaplastic astrocytoma	10 y	559	218	166	0.77	0.57–1.05	.095
Glioblastoma	10 y	426	263	228	0.72	0.55–0.93	.013
Medulloblastoma	10 y	5465	1017	369	0.80	0.65–0.99	.036
PNET	10 y	1355	350	193	0.51	0.38–0.67	<.001
Ependymoma	10 y	2986	572	204	0.85	0.64–1.12	.240
Overall	10 y	23725	4336	1238	0.74	0.66–0.82	<.001
Overall (age and histology adjusted)	10 y	25521	4336	1250	0.71	0.64–0.80	<.001
Anaplastic and GBM	5 y	783	481	387	0.70	0.57–0.85	<.001
PNET and medulloblastoma	5 y	4650	1367	504	0.75	0.63–0.89	<.001
<3 y
Pilocytic astrocytoma	10 y	2180	344	28	0.57	0.27–1.22	.146
Anaplastic astrocytoma	10 y	127	32	14	0.52	0.19–1.48	.219
Glioblastoma	10 y	68	28	19	1.07	0.43–2.67	.883
Medulloblastoma	10 y	827	209	115	0.80	0.55–1.16	.234
PNET	10 y	323	125	87	0.50	0.32–0.76	<.001
Ependymoma	10 y	1067	218	96	0.82	0.55–1.23	.346
Overall	10 y	4593	956	359	0.69	0.56–0.85	<.001
Anaplastic and GBM	5 y	139	60	33	0.75	0.38–1.48	.400
PNET and medulloblastoma	5 y	803	334	198	0.71	0.57–0.87	<.001
3–14 y
Pilocytic astrocytoma	10 y	10754	1572	50	0.75	0.42–1.33	.325
Anaplastic astrocytoma	10 y	432	186	152	0.83	0.60–1.14	.244
Glioblastoma	10 y	358	235	209	0.68	0.51–0.89	.006
Medulloblastoma	10 y	4637	808	254	0.84	0.66–1.08	.183
PNET	10 y	1031	225	106	0.57	0.39–0.81	.004
Ependymoma	10 y	1920	354	108	0.86	0.59–1.26	.446
Overall	10 y	19132	3380	879	0.76	0.67–0.87	<.001
Anaplastic and GBM	5 y	644	421	354	0.69	0.52–0.91	.009
PNET and medulloblastoma	5 y	3848	1033	306	0.85	0.69–1.07	.163