Journal
JOURNAL OF MEDICAL SYSTEMS
Volume 33, Issue 3, Pages 223-231Publisher
SPRINGER
DOI: 10.1007/s10916-008-9183-3
Keywords
Informatics; Medically uninsured; Information dissemination; Community networks
Funding
- Integrated Care Collaboration of Central Texas, particularly Sandy Coe Simmons
- TAMHSC SRPH
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Health information exchange (HIE) makes previously inaccessible data available to clinicians, resulting in more complete information. This study tested the hypotheses that HIE information access reduced emergency room visits and inpatient hospitalizations for ambulatory care sensitive conditions among medically indigent adults. HIE access was quantified by how frequently system users' accessed patients' data. Encounter counts were modeled using zero inflated binomial regression. HIE was not accessed for 43% of individuals. Patient factors associated with accessed data included: prior utilization, chronic conditions, and age. Higher levels of information access were significantly associated with increased counts of all encounter types. Results indicate system users were more likely to access HIE for patients for whom the information might be considered most beneficial. Ultimately, these results imply that HIE information access did not transform care in the ways many would expect. Expectations in utilization reductions, however logical, may have to be reevaluated or postponed.
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