Eftekhari et al.24 (2017) |
Quasi-experimental: Instrumental Variable |
Outpatient |
Beneficial effect |
HIE tenure was related to a significant reduction in the repetition of therapeutic medical procedures |
HIE tenure had no effect on the reduction of repetition of diagnostic medical procedures |
Boockvar et al.32 (2017) |
Randomized controlled trial as well as difference-in-difference |
Inpatient |
Beneficial effect |
A significantly greater number of medication discrepancies were identified when HIE was used |
No effect was seen in the number of adverse drug events experienced when HIE was used |
Murphy et al.37 (2017) |
Randomized controlled trial |
Emergency Department |
Beneficial effect |
Over a 12-month period costs HIE use resulted in $3200 savings related to ED use |
Cunningham et al.35 (2017) |
Quasi-experimental: Interrupted time series |
HIV care |
Beneficial effect |
Use of Laboratory HIE was associated with higher odds of anti-retroviral therapy, viral suppression, and reduced racial disparities |
Yaraghi30 (2015) |
Quasi-experimental |
Emergency Department |
Beneficial effect |
HIE usage was associated with a significant reduction in both laboratory tests as well as radiology examinations ordered per patient |
Jung et al.27 (2015) |
Quasi-experimental: Propensity score matching |
Community |
Beneficial effect |
HIE usage was related to reduction in repeat imaging. |
Reduced repeat imaging was significantly related to annual savings of $32 460 |
Vest et al.17 (2015) |
Quasi-experimental: Propensity score matching |
Outpatient |
Beneficial effect |
HIE usage was related to reduction lower odds of readmission. This reduction was related to estimated savings of $605 000 |