Table 2

Descriptive data on adjuvant chemotherapy (AC) for stages III colon and II/III rectal cancers in Georgia, USA, 2000–2004

		Cases	%	AC (No)	%	AC (Yes)	%	p Value^*
Overall		4748	100.0	2141	45.1	2607	54.9
Individual level characteristics
Patient sex	Women	2270	47.8	1100	48.5	1170	51.5	<0.0001
Patient sex	Men	2478	52.2	1041	42.0	1437	58.0
Patient age	≥80	678	14.3	574	84.7	104	15.3	<0.0001
	75–79	543	11.4	323	59.5	220	40.5
	70–74	602	12.7	285	47.3	317	52.7
	65–69	649	13.7	244	37.6	405	62.4
	55–64	1134	23.9	374	33.0	760	67.0
	15–54	1142	24.1	341	29.9	801	70.1
Cancer anatomic site	Colon	3000	63.2	1489	49.6	1511	50.4	<0.0001
Cancer anatomic site	Rectum	1748	36.8	652	37.3	1096	62.7
Patient race	Black	1173	24.7	533	45.4	640	54.6	0.7835
Patient race	White	3575	75.3	1608	45.0	1967	55.0
CT level characteristics
CT poverty	≥20% BPL	1054	22.2	501	47.5	553	52.5	0.0326
	10–19.9% BPL	1702	35.9	765	45.0	937	55.1
	5–9.9% BPL	1079	22.7	499	46.3	580	53.8
	<5% BPL	913	19.2	376	41.2	537	58.8
CT % black	High	1704	35.9	793	46.5	911	53.5	0.2170
	Moderate	1388	29.2	627	45.2	761	54.8
	Low	1656	34.9	721	43.5	935	56.5
CT rurality	Urban	2709	57.1	1235	45.6	1474	54.4	0.0012
	Suburban	1256	26.5	519	41.3	734	58.7
	Rural	783	16.5	387	49.4	396	50.6
CT rurality X patient race	Urban black	786	29.0	363	46.2	423	53.8	0.6913
	Urban white	1923	71.0	872	45.4	1,051	54.7
	Suburban black	214	17.0	96	44.9	118	55.1	0.2485
	Suburban white	1042	83.0	423	40.6	619	59.4
	Rural black	173	22.1	74	42.8	99	57.2	0.0474
	Rural white	610	77.9	313	51.3	297	48.7