Item	Model construct	Mean	Std. Dev
Not enough reports are available through PhysicianConnect^a	Number of reports	2.64	1.16
Do not want all of the reports that currently come through PhysicianConnect	Number of reports	2.26	1.46
Extra space in reports that makes reading awkward^a	Report quality issues	2.67	1.27
Lack of support for images making information more difficult to convey^a	Report quality issues	2.49	1.18
Date formats from reports not compatible with our EMR	Report quality issues	1.78	1.01
Duplicate reports received^a	Report quality issues	3.48	1.29
Reports received in a way that does not allow cut/paste of information	Report quality issues	2.53	1.38
Reports received for mis-identified or unknown patients^a	Report quality Issues	2.40	1.10
Unable to upgrade EMR due to version incompatibility	Report quality issues	2.16	1.28
System reliability (i.e. stops sending reports)^a	System reliability	2.31	1.06
No way to tell whether data are flowing through the system or not^a	System reliability	2.73	1.38
Lack of support from hospitals about system issues^a	Service quality	2.49	1.27
Lack of support from EMR vendor about system issues^a	Service quality	2.91	1.33

All items measured on a 5-point scale where 1 = not at all, 3 = to some extent and 5 = to a very great extent
↵a indicates items retained in final model