Table 1.

Demographic and Clinical Characteristics of Patients Receiving or Not Receiving Tumor Marker Testing

Characteristic	Test		No Test
	No.	%	No.	%
Mean age at diagnosis, years	74.8		76.1
Race/ethnicity*
White	14,238	41.5	20,034	58.5
African American	842	39.6	1,283	60.4
American Indian/Alaskan native	28	34.6	53	65.4
Asian/Pacific Islander	658	45.5	789	54.5
Hispanic	818	52.5	739	47.5
Other/unknown	69	41.1	99	58.9
Tumor stage*
1	9,776	38.6	15,538	61.4
2	5,841	47.0	6,599	53.0
3	1,036	54.6	860	45.4
Diagnosis year*
2001	2,086	38.0	3,398	62.0
2002	2,216	39.4	3,406	60.6
2003	2,196	39.6	3,349	60.4
2004	2,347	41.8	3,270	58.2
2005	2,458	43.3	3,213	56.7
2006	2,601	45.4	3,123	54.6
2007	2,749	45.9	3,238	54.1

^*Percent calculated within each demographic category.