Table 1:

Frequencies by PET with and without other Imaging

		Overall		PET		MRI +/− CT		CT Alone		p-value Comparing Any MRI without PET to Any PET	p-value Comparing CT Alone to Any PET
		N	%	N	%	N	%	N	%
All Patients		1765	.	1472	.	91	.	202	.	.	.
Age at Diagnosis	66 to 69	600	33.99	505	34.31	27	29.67	68	33.66	0.3843	0.9232
	70 to 74	543	30.76	456	30.98	26	28.57	61	30.20	.	.
	75 and Older	622	35.24	511	34.71	38	41.76	73	36.14	.	.
Sex	Female	436	24.70	330	22.42	38	41.76	68	33.66	<.0001	0.0004
	Male	1329	75.30	1142	77.58	53	58.24	134	66.34	.	.
Race/Ethnicity Category	White NH	1488	84.31	1248	84.78	72	79.12	168	83.17	0.1480	0.5513
	Non-White or Hispanic	277	15.69	224	15.22	19	20.88	34	16.83	.	.
Marital Status Category	Non-Married	833	47.20	663	45.04	47	51.65	123	60.89	0.2192	<.0001
	Married or Partnered	932	52.80	809	54.96	44	48.35	79	39.11	.	.
Patient Region at Diagnosis	East	345	19.55	291	19.77			43	21.29	<.0001	0.7259
	Midwest	156	8.84	132	8.97			20	9.90	.	.
	South	503	28.50	426	28.94	15	16.48	62	30.69	.	.
	West	761	43.12	623	42.32	61	67.03	77	38.12	.	.
Patient Location	Metropolitan	1445	81.87	1205	81.86	77	84.62	163	80.69	0.5067	0.6870
	Non-Metropolitan	320	18.13	267	18.14	14	15.38	39	19.31	.	.
Poverty Level of Census Tract	Less than Median Level	881	50.00	754	51.33	48	52.75	79	39.11	0.7926	0.0011
	Higher than Median Level	881	50.00	715	48.67	43	47.25	123	60.89	.	.
Residents in Census Tract with High School Education	Less than Median Level	881	50.00	759	51.67	43	47.25	79	39.11	0.4135	0.0008
	Higher than Median Level	881	50.00	710	48.33	48	52.75	123	60.89	.	.
Charlson Comorbidity Index Category	0	894	50.65	756	51.36	39	42.86	99	49.01	0.2886	0.4294
	1	434	24.59	362	24.59	26	28.57	46	22.77	.	.
	2 or more	437	24.76	354	24.05	26	28.57	57	28.22	.	.
Teaching Hospital	No or Unknown	719	40.74	599	40.69	35	38.46	85	42.08	0.6740	0.7070
	Yes	1046	59.26	873	59.31	56	61.54	117	57.92	.	.
DAJCC Stage Group 6th Ed	Stage 0-I	81	4.59	46	3.13	14	15.38	21	10.40	<.0001	<.0001
	Stage II-III	429	24.31	351	23.85	20	21.98	58	28.71	.	.
	Stage IV	1003	56.83	871	59.17	43	47.25	89	44.06	.	.
	Unknown Stage	252	14.28	204	13.86	14	15.38	34	16.83	.	.
Chemotherapy	No	489	27.71	333	22.62	43	47.25	113	55.94	<.0001	<.0001
	Yes	1276	72.29	1139	77.38	48	52.75	89	44.06	.	.
Radiation	No	245	13.88	147	9.99	26	28.57	72	35.64	<.0001	<.0001
	Yes	1520	86.12	1325	90.01	65	71.43	130	64.36	.	.
Surgery	No	1195	67.71	1023	69.50	52	57.14	120	59.41	0.0136	0.0039
	Yes	570	32.29	449	30.50	39	42.86	82	40.59	.	.