Table 2 : Health care characteristics of survey respondents (N=100).

	Total		Have Participated		Have Not Participated
	N=100	%	N=35	%	N=34	%
Healthcare specialty
Oncology	43	47.8	19	55.9	10	32.3
Non-oncology	47	52.2	15	44.1	21	67.7
Oncology specialty
Medical Oncology	28	65.1	11	57.9	7	70.0
Pediatric Oncology	2	4.7	0	0.0	1	10.0
Radiation Oncology	5	11.6	2	10.5	1	10.0
Surgical Oncology	8	18.6	6	31.6	1	10.0
Amount of offices
Zero, does not see patients	20	22.7	3	8.8	5	16.7
One	50	56.8	21	61.8	21	70.0
Two or more	18	20.5	10	29.4	4	13.3
Type of medical community
Urban	29	33.3	14	41.2	9	28.1
Suburban	38	43.7	12	35.3	15	46.9
Rural	12	13.8	6	17.6	5	15.6
Combination of urban, suburban, and rural	8	9.2	2	5.9	3	9.4
Length of practice
5 years or less	10	12.3	5	15.2	5	16.7
6 to 20 years	22	27.2	6	18.2	12	40.0
More than 20 years	49	60.5	22	66.7	13	43.3
Does respondent find that there are barriers to their participation in clinical research?
Yes	38	59.4	21	61.8	17	56.7
No	26	40.6	13	38.2	13	43.3
Types of Barriers (reported by those who answered yes above; select all that apply)
Lack of access	17	44.7	10	47.6	7	41.2
Infrastructural needs	18	47.4	13	61.9	5	29.4
Lack of experience	15	39.5	5	23.8	10	58.8
Personnel needs	22	57.9	15	71.4	7	41.2
Time constraints	23	60.5	13	61.9	10	58.8
Incentives not worth the effort	11	28.9	9	42.9	2	11.8
Patients are unwilling	8	21.1	2	9.5	6	35.3