Table A1.

Univariable Analysis of Specific Communication and Practice Patterns Regarding HS Among Oncologists Who Have Discussed CAM With Patients

Predictor	Total (n = 376)		Initiates Discussion About HS Use					Often or Sometimes Recommends HS to Patients
			Yes (n = 261)		No (n = 113)		P†	Yes (n = 246)		No (n = 121)		P†
	No.	%*	No.	%	No.	%		No.	%	No.	%
Age, years							.567					.088
< 48	131	35	93	71	38	29		105	81	25	19
≥ 48	139	37	103	74	36	26		97	72	38	28
Sex							.002					.468
Male	263	70	170	65	92	35		175	68	82	32
Female	109	29	88	81	20	19		68	64	38	36
Practice setting							.601					.086
Academic	156	41	112	72	44	28		110	73	40	27
Community with academic affiliation	75	20	49	65	26	35		46	61	29	39
Community	140	37	97	70	41	30		86	63	51	37
Race							.011					.496
Nonwhite	284	76	207	73	76	27		189	68	88	32
White	83	22	48	59	34	41		52	64	29	36
Personal use of CAM							.010					.566
No	244	65	158	65	84	35		162	68	76	32
Yes	132	35	103	78	29	22		84	65	45	35
Involved in clinical trial enrollment							.024					.298
No	29	8	15	52	14	48		17	59	12	41
Yes	341	91	243	72	96	28		226	68	106	32
Has enough knowledge to answer questions about HS‡							.055					.960
No	238	63	158	66	80	34		156	67	78	33
Yes	133	35	101	76	32	24		87	67	43	33
Prior education							< .001					.459
No	214	57	128	60	84	40		141	68	65	32
Yes	157	42	129	82	28	18		101	65	55	35
Correct knowledge of HS§							< .001					.438
No	178	47	106	60	70	40		111	65	60	35
Yes	194	52	153	79	41	21		132	69	60	31
Oncologists' estimate of patient HS use, %							< .001					.149
< 40	216	57	136	63	79	37		147	70	63	30
≥ 40	159	42	125	79	33	21		98	63	58	37

Abbreviations: CAM, complementary and alternative medicine; HS, herbs and supplements.

^*Percentages may not add up to 100% because of missing values.

^†χ² test of association.

^‡From Likert-scale type of statement: “I know enough to answer patients' questions about HS,” where response of strongly agree or agree meant enough knowledge.

^§Correct knowledge of what HS not to combine with cancer treatment was derived from four multiple-choice questions; yes was assigned if at least two questions were answered correctly.