Table 2-.

Characteristics of patients who received treatment

Variable		White (n=19,306)		Black (n=1,249)		p-valueǂ
		n	%	n	%
Radiation Therapy only	No	17050	88.3	1030	82.5	<.0001
	Yes	2256	11.7	219	17.5
Chemotherapy Only	No	19055	98.7	1203	96.3	<.0001
	Yes	251	1.3	46	3.7
Surgery Only	No	6299	32.6	550	44.0	<.0001
	Yes	13007	67.4	699	56.0
>1 Treatment	No	15514	80.4	964	77.2	0.0064
	Yes	3792	19.6	285	22.8
Gender	Male	9414	48.7	573	45.9	0.048
	Female	9892	51.3	676	54.1
Age (years)	65–69	4262	22.1	404	32.4	<.0001
	70–74	5871	30.4	398	31.9
	75–79	5174	26.8	263	21.1
	80–84	2892	15.0	143	11.5
	≥85	1107	5.7	41	3.3
Marital Status	Single	1037	5.4	204	16.3	<.0001
	Married	11289	58.4	478	38.3
	Prior Marriage*	6980	36.2	567	45.4
Charlson Score	0	7609	39.4	394	31.6	<.0001
	1	6218	32.2	378	30.3
	2	2910	15.1	196	15.7
	≥3	2569	13.3	281	22.5
Histology	Squamous	6420	33.3	493	39.5	<.0001
	Adeno	9659	50.0	542	43.4
	Large cell	1286	6.7	84	6.7
	Other	1941	10.1	130	10.4
Tumor size(mm)	0–20	6408	33.2	386	30.9	0.0016
	21–30	5616	29.1	329	26.3
	31–50	5153	26.7	362	29.0
	51–70	1469	7.6	110	8.8
	≥71	660	3.4	62	5.0
		Mean	Standard Error	Mean	Standard Error
Median Income($)^		49886.4	143	35266.7	410.3	<.0001
% less than high school^		17.6	0.1	28.3	0.3	<.0001

^*Divorced, Separated, Widowed;

^{^}ZIP code level;

^ǂχ²test for categorical variables, t-test for continuous