. Author manuscript; available in PMC: 2015 Jan 1.

Published in final edited form as: J Rural Health. 2013 Jun 26;30(1):10.1111/jrh.12033. doi: 10.1111/jrh.12033

Table 2.

Bivariate Association of Sociodemographic or Service Provider Characteristics With Guideline Concordance for Stage I – III Colorectal Cancer Patients Living in Appalachian Counties in 4 States, 2006-2008^d

Sociodemographic and spatial characteristics	Chemotherapy for stage III colon cancer (n=561)		›12 lymph nodes stages I – III colon cancer (n=2932)		Radiation therapy for Stage III rectal cancer (n=184)

	N	%yes	N	%yes	N	%yes
Total	561	62.9	2932	66.3	184	56.0
Age
Ȁ66-73	277	69.7^a	883	68.3	97	66.0^a
74-80	284	56.3	962	65.3	87	44.8
81+	0	--	1087	65.5	0	--

Race/Ethnicity^e
White	539	63.6	2842	66.7^a	178	57.8^c
Black	19	47.4	60	56.7	5	0.0
Hispanic	2	50.0	14	50.0	1	0.0
Other	1	0.0	11	54.5	0	--

Gender
Male	263	63.9	1261	61.6^a	104	59.6
Female	298	62.1	1746	66.9	80	51.3

Derived Stage
Stage I	0	--	846	53.6^a	0	--
Stage II	0	--	1186	70.6	0	--
Stage III	561	62.9	882	73.1	184	56.0

Grade
Well differentiated	12	59.0	277	63.9^a	12	75.0
Moderately differentiated	359	59.0	2020	63.0^a	12	750
Poorly diff/undifferentiated	146	63.0	526	74.9	38	50.0

Hospital size
<50 beds	24	58.3	94	63.8^a	4	50.0
50 – 100 beds	34	61.8	204	56.4	10	50.0
100-200 beds	10 7	57.0	583	55.6	34	52.9
200 - 500 beds	241	69.3	1233	66.3	69	60.9
500+ beds	131	58.0	670	78.7	53	56.6

Hospital COC designation
Hospital Cancer Pgm	97	66.0	457	67.6^a	30	63.3^b
Comprehensive Cancer Pgm	170	63.5	925	73.2	49	65.3
Teaching Hospital Cancer Pgm	52	71.2	314	76.8	30	43.3
NCI designated Cancer Pgm	18	50.0	105	82.9	15	80.0
Network Cancer Pgm	5	100.0	31	74.2	1	0.0
No designation	195	59.5	952	53.3	45	46.7

Hospital Ownership
Not-for profit	473	63.2	2507	66.2	153	57.5
For profit	24	66.7	97	65.0	3	33.3
Government	40	60.0	177	67.8	14	57.1

Metropolitan location	289	61.9	1608	69.2*	96	58.3
Nonmetropolitan location	272	64.0	1324	62.9	88	53.4

Surg facility Volume
Quartile 1 (lowest volume)	135	65.9	687	56.7^a	29	48.3
Quartile 2	142	62.0	690	55.5	32	53.1
Quartile 3	132	66.7	707	72.4	47	61.7
Quartile 4 (highest volume)	126	57.9	696	80.0	61	59.0

Surg Provider Volume
Quartile 1 (lowest volume)	131	58.8	658	61.9^a	33	48.5
Quartile 2	123	67.5	749	65.4	37	46.0
Quartile 3	135	67.4	663	64.4	34	64.7
Quartile 4 (highest volume)	150	59.3	742	74.4	58	56.9

Facility Radiation Treatment
Yes	415	62.3	2151	68.7^a	135	59.3
No	122	55.7	629	57.7	35	48.6

Facility Chemotherapy Treatment
Yes	155	60.7	919	67.9	38	63.2
No	382	64.1	1861	65.4	132	55.3

Provider Specialty
Colorectal Surgery	71	56.3	310	75.2^a	25	60.0
Other	468	64.1	2501	65.7	137	53.3

Year of diagnosis
2006	205	61.0	1038	58.8^a	64	57.8^a
2007	193	66.3	995	69.5	62	66.1
2008	163	61.4	899	71.6	58	43.1

Continuous Variables	No	Yes	No	Yes	No	Yes
Age	74.5(4.3)^a	73.0(4.2)	78.0(6.8)	77.8(7.0)	73.9(4.3)	72.0(4.0)^a
Provider Graduation year	1984(10)	1983(11)	1982(11)	1984(10)^a	1984(11)	1984(9)
Log Tumor size	3.8(0.6)	3.8(0.5)	3.4(0.7)	3.7(0.6)^a	3.6(0.5)	3.6(0.5)

Chi-square or t-test, P < .05

For COC status vs radiation, there is only 1 facility with “Network Cancer Program” designation (Fisher exact = .0473. When this facility is grouped into another category, “Community Hospital Comprehensive Program,” (Fisher exact P = .0609.). Due to very small sample size, results are not as robust and classified as statistically insignificant.

Fishers exact test P< .05.

Missing cases not included in bivariate comparisons; total sample size may change by each comparison.

Race statistical comparisons compared White vs Other only.