Table 3.

Multivariate analysis for risk factors for mortality, National Cancer Database (NCDB) 2004–2014 and Surveillance, Epidemiology, and End Results (SEER) 2004–2014

		NCDB		SEER
		Hazard ratio	95% confidence interval	Hazard ratio	95% confidence interval
Age groups	0–20 years	0.36	0.18–0.72	0.473	0.22–1.00
	21–59 years	0.47	0.32–0.71	0.332	0.22–0.50
	>60 years	Reference	-	Reference	-
Gender	Female	0.89	0.65–1.21	0.832	0.55–1.25
	Male	Reference	-	Reference	-
Race	Black	0.65	0.38–1.12	0.159	0.02–1.14
	Other	0.79	0.41–1.52	0.738	0.35–1.52
	White	Reference	-	Reference	-
Hispanic	No	1.13	0.70–1.81	1.52	0.85–2.73
	Yes	Reference	-	Reference	-
Median income	<$38 000	1.69	0.95–3.00	2.178	0.75–6.33
	$38 000–47 999	1.30	0.83–2.05	0.859	0.39–1.87
	$48 000–62 999	1.31	0.83–2.05	1.397	0.86–2.27
	≥$68 000	Reference	-	Reference	-
Percentage no high school	13.0–20.9%	1.03	0.66–1.60	0.893	0.53–1.50
	7.0–12.9%	1.08	0.64–1.82	0.960	0.57–1.62
	<7.0%	0.74	0.38–1.41	1.665	0.63–4.37
	≥21%	Reference	-	Reference	-