Table 4.

Unadjusted Associations With Mortality

Characteristic	Hazard Ratio	95% CI	P
Signet ring cell histology	1.06	1.00 to 1.12	.070
Age at diagnosis	1.01	1.00 to 1.01	< .001
Female sex	1.04	0.99 to 1.10	.135
Race/ethnicity, %
Black	1.04	0.96 to 1.14	.317
API	0.74	0.69 to 0.81	< .001
AIA	1.33	1.02 to 1.72	.032
Hispanic ethnicity	1.09	1.02 to 1.17	.013
Surgical resection	0.25	0.24 to 0.26	< .001
AJCC stage
1B	0.98	0.85 to 1.13	.766
2	1.35	1.19 to 1.53	< .001
3A	2.13	1.88 to 2.41	< .001
3B	1.86	1.54 to 2.26	< .001
4	5.36	4.82 to 5.95	< .001
Tumor stage
2A	0.70	0.61 to 0.81	< .001
2B	1.02	0.92 to 1.12	.740
3	1.30	1.18 to 1.43	< .001
4A	2.73	2.48 to 2.99	< .001
4B	4.11	3.73 to 4.54	< .001
Node stage
1	1.33	1.24 to 1.41	< .001
2	1.19	1.08 to 1.30	< .001
3	1.63	1.45 to 1.84	< .001
Metastases stage 1	4.10	3.88 to 4.33	< .001
Tumor grade
2	1.55	1.28 to 1.89	< .001
3	2.06	1.71 to 2.49	< .001
4	2.04	1.59 to 2.60	< .001
Radiation therapy administered	0.43	0.37 to 0.49	< .001
Radiation before surgery	0.38	0.35 to 0.41	< .001
Radiation after surgery	0.45	0.19 to 0.66	< .001

Abbreviations: AIA, American Indian/Alaska Native; AJCC, American Joint Committee on Cancer, 6th edition; API, Asian/Pacific Islander.