Table 3.

Answers to the online survey.

	Overall	IM	EHR	KR
	N=17	n=5	n=4	n=8
Are you or your organization a member of HL7?	13 (76%)	4 (80%)	4 (100%)	5 (63%)
Ever voted on any of the HL7 Infobutton standard specifications?	12 (71%)	4 (80%)	3 (75%)	5 (63%)
How often participates in HL7 Infobutton conference calls?
frequently	6 (35%)	2 (40%)	1 (25%)	3 (38%)
sometimes	4 (24%)	2 (40%)	2 (50%)	-
occasionally	4 (24%)	1 (20%)	-	3 (38%)
never	3 (18%)	-	1 (25%)	2 (25%)
When did you first release your HL7-compliant implementation?
Before 2010	6 (35%)	3 (60%)	-	3 (38%)
What type(s) of implementations have you done?
HTTP GET	17 (100%)	5 (100%)	4 (100%)	8 (100%)
HTTP POST	10 (59%)	2 (40%)	3 (75%)	5 (63%)
RESTful	5 (29%)	2 (40%)	-	3 (38%)
SOAP	3 (18%)	1 (20%)	-	2 (25%)
Any plans to implement any of the following specifications?
HTTP POST	1 (6%)	1 (20%)	-	-
RESTful	5 (29%)	1 (20%)	2 (50%)	2 (25%)
SOAP	1 (6%)	1 (20%)	-	-
What knowledge request attributes do you support?
patient gender	12 (71%)	4 (80%)	4 (100%)	4 (50%)
patient age	12 (71%)	4 (80%)	4 (100%)	4 (50%)
patient age group	5 (29%)	1 (20%)	1 (25%)	3 (38%)
task context	11 (65%)	5 (100%)	3 (75%)	3 (38%)
subtopic	6 (35%)	2 (40%)	1 (25%)	3 (38%)
main search criteria	17 (100%)	5 (100%)	4 (100%)	8 (100%)
severity observation	2 (12%)	1 (20%)	-	1 (13%)
Information recipient	9 (53%)	4 (80%)	2 (50%)	3 (38%)
performer	6 (35%)	3 (60%)	2 (50%)	1 (13%)
performer discipline	6 (35%)	3 (60%)	1 (25%)	2 (25%)
information recipient discipline	1 (6%)	1 (20%)	-	-
performer language	2 (12%)	1 (20%)	-	1 (13%)
information recipient language	4 (24%)	2 (40%)	-	2 (25%)
care setting	8 (47%)	3 (60%)	4 (100%)	1 (13%)
service delivery location	3 (18%)	2 (40%)	1 (25%)	-