Table A1: Additional Publications Referenced for Supplementary Details on Included Studies.

	Included Studies		Additional Publications
Author, Year	Study Design	Description of Intervention	Author, Year	Description of Research Article
Khan et al, 2010 (35)	Cluster RCT	Randomized hospital laboratories to use electronic laboratory results management system, which can automatically generate a report for PCPs	MacLean et al, 2004 (43)	Detailed description of planned study protocol
Montori et al, 2002 (37)	Cluster controlled trial	Physicians assigned to the intervention group used a diabetes electronic management system compared to control physicians, who maintained usual care with a paper-based patient chart system	Gorman et al, 2000 (44)	Detailed description of intervention technology
Walsh et al, 2012 (41)	Prospective case series	EHR use was self-identified through physician surveys; physicians who used EHRs were compared to physicians using paper-based practices—details of individual EHR systems are unknown	Walsh et al, 2010 (45)	Detailed study description and baseline data

Abbreviations: EHR, electronic health record; PCP, primary care physician; RCT, randomized controlled trial.