Table 4.

Multivariable Analysis of Specific Communication and Practice Patterns Regarding HS

Predictor	Initiates Discussion About HS Use (n = 265)		Often or Sometimes Recommends HS to Patients (n = 262)		Encourages Herb Use for Incurable Disease (n = 257)		Has Ever Administered Chemotherapy With HS in Last 12 Months to > 20 Patients (n = 275)		Very Likely to Combine Unknown Herb and Chemotherapy for Curable Patients (n = 278)
	OR*†	95% CI	OR*†	95% CI	OR*	95% CI	OR*	95% CI	OR*	95% CI
Age (≥ 48 v < 48 years)	0.84	0.45 to 1.56	0.63	0.34 to 1.17	1.65	0.92 to 2.99	0.96	0.53 to 1.74	2.14	1.21 to 3.78
Sex (female v male)	2.12	1.06 to 4.24	0.55	0.30 to 1.02	0.61	0.34 to 1.09	0.51	0.26 to 0.98	0.55	0.31 to 0.98
Race (white v nonwhite)	0.63	0.31 to 1.28	0.83	0.41 to 1.69	1.26	0.66 to 2.42	0.54	0.25 to 1.15	0.45	0.25 to 0.83
Practice setting
Community with academic affiliation v academic					2.53	1.10 to 5.79
Community v academic					1.85	1.00 to 3.43
Has enough knowledge to answer questions about CAM (yes v no)‡	2.37	1.16 to 4.85			0.24	0.13 to 0.44
Prior education (yes v no)	2.54	1.32 to 4.89					2.27	1.26 to 4.08
Correct knowledge of HS (yes v no)§	1.84	1.01 to 3.36
Oncologists' estimate of patient HS use (≥ 40% v < 40%)	1.96	1.04 to 3.70	0.48	0.26 to 0.87			7.46	4.07 to 13.67

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

^*Obtained from final logistic regression model selected using stepwise method.

^†Sample included oncologists who have discussed HS with patients.

^‡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.