Table 1.

Demographic and clinical characteristics for prostate cancer cases diagnosed at advanced stage in the SEER‐Medicare database by race and ethnicity

	All patients		NHW		NHB		P value	Standardized Difference	Other
	N	%	N	%	N	%			N	%
Total	8828		6617		1131				1080
Age group							<0.001	0.29
66‐69	1932	22	1359	21	321	28			252	23
70‐74	2135	24	1532	23	296	26			307	28
75‐79	1779	20	1314	20	235	21			230	21
80‐84	1529	17	1212	18	159	14			158	15
85+	1453	16	1200	18	120	11			133	12
Marital statusa							<0.001	0.52
Single (never married)	936	11	584	9	246	22			106	10
Married (or equivalent)	5444	62	4240	64	484	43			720	67
Separated or Divorced	694	8	461	7	152	13			81	8
Widowed	1208	14	934	14	167	15			107	10
Year of Diagnosis							0.086	0.06
2004‐2006	2745	31	2055	31	370	33			320	30
2007‐2009	2453	28	1800	27	323	29			330	31
2010‐2013	3630	41	2762	42	438	39			430	40
Poverty indicatora(based on census tract)							<0.001	1.13
0%‐<5% poverty	1908	22	1667	25	65	6			176	16
5% to <10% poverty	2173	25	1868	28	118	10			187	17
10% to <20% poverty	2299	26	1699	26	287	25			313	29
20% to 100% poverty	1717	19	853	13	606	54			258	24
Histology							0.026	0.08
Adenocarcinoma	8204	93	6133	93	1069	95			1002	93
Nonadenocarcinoma	624	7	484	7	62	5			78	7
Gleason grade							<0.001	0.15
6 or less	355	4	249	4	59	5			47	4
7	1493	17	1050	16	223	20			220	20
8	1578	18	1181	18	200	18			197	18
9	2723	31	2067	31	333	29			323	30
10	606	7	487	7	66	6			53	5
Unknown	2073	23	—	—	—	—			—	—
TNM summary							<0.001	0.22
M1, any N, any T	6555	74	4841	73	930	82			784	73
M0, N1, any T	1354	15	1078	16	114	10			162	15
M0, N0, T4	919	10	698	11	87	8			134	12
Charlson comorbidity score							0.001	0.17
None	5153	58	3879	59	646	57			628	58
1	1801	20	1384	21	199	18			218	20
2	863	10	629	10	133	12			101	9
3	460	5	344	5	50	4			66	6
≥4	551	6	381	6	103	9			67	6
Vital status							<0.001	0.13
Alive	3474	39	2620	40	374	33			480	44
Prostate cancer death	3810	43	2870	43	542	48			398	37
Other causes of death	1544	17	1127	17	215	19			202	19

NHB, non‐Hispanic black; NHW, non‐Hispanic whites.

P value calculated from Cochran‐Armitage test for ordinal variables (age group, year of diagnosis, poverty, Gleason grade, CCS) and chi‐square for categorical variables. Percentages calculated from total (including unknown values not displayed).

^aMarital status missing for 546 men; poverty indicator missing for 731 men.