eTable 1.

Comparison of responder and non-responder characteristics.

	Physicians						Pharmacists*
	Responders (n = 1,406)		Non- Responders (n = 4,872)		p		Responders (n = 497)		Non- Responders (n = 1119)		p
Gender (n, %)^						Gender (n, %)
Male	908	64.6%	3152	64.7%	0.94	Male	207	41.7%	439	39.2%	0.34
Female	498	35.4%	1719	35.3%	0.92	Female	290	58.4%	680	60.8%	0.36
Mean Age, Years (SD) ^^	56.7	(13.0)	52.7	(14.1)	<.01	Mean Age, Years (SD)	48.9	(13.6)	44.8	(13.8)	<.01
Race / Ethnicity (n, %)^^^						Degree type (n, %)
White	672	47.8%	1843	37.8%	<.01	PharmD	332	66.8%	868	77.6%	<.01
Black	40	2.8%	126	2.6%	0.59	BS**	165	33.2%	251	22.4%	<.01
Asian/Pacific Islander	389	27.7%	1571	32.2%	<.01
Hispanic	40	2.8%	226	4.6%	<.01	Pharmacy School (n, %)
Other	16	1.1%	26	0.5%	0.01	Foreign school	61	12.3%	89	8.0%	0.01
Decline to state	198	14.1%	764	15.7%	0.14	US school	436	87.7%	1030	92.1%	<.01
Missing	51	3.6%	316	6.5%	<.01	California school	251	50.5%	644	57.6%	0.01
Primary Specialty (n, %)#
Internal Medicine	186	13.2%	589	12.1%	0.25
Family Medicine	175	12.4%	503	10.3%	0.02
Psychiatry	116	8.3%	250	5.1%	<.01
Emergency Medicine	93	6.6%	185	3.8%	<.01
Anesthesiology	78	5.5%	228	4.7%	0.18
OBGYN	55	3.9%	207	4.2%	0.58
Pediatrics	84	6.0%	295	6.1%	0.91
Pain medicine	10	0.7%	23	0.5%	0.27
Radiology	53	3.8%	241	4.9%	0.07
Current License	1390	98.9%	4450	91.3%	<.01

Note: Bolded p-values are less than Bonferroni corrected threshold of .0016

^{^}1 missing for gender;

^{^^}weighted average;

^{^^^} Licensees can check multiple ethnicities

^#Percentages due not sum to 100%; Licensees may list more than one specialty.

^*Data missing for 10 pharmacists;

^** PharmD became the entry-level degree in 2003