AJMC

Physician Capability to Electronically Exchange Clinical Information, 2011 | Page 1

Published Online: October 23, 2013
Vaishali Patel, PhD, MPH; Matthew J. Swain, MPH; Jennifer King, PhD; and Michael F. Furukawa, PhD
The capability to electronically share and view clinical data has the potential to enable clinical information to follow patients wherever they go to seek care and thereby improve the safety, quality, and efficiency of healthcare.1 Despite promising benefits, historically physicians have not exchanged clinical information  electronically due to the high costs associated with implementation and limited incentives for data sharing.2 Exchange activity has largely been confined to regions of the country where there are operational health information organizations that support clinical data exchange within their community.3 Furthermore, physicians have typically had to use stand-alone e-prescribing systems or proprietary portals that  support the exchange of specific types of clinical data (eg, viewing lab data), which can be costly, difficult to incorporate into their clinical work flow, and possess limited capability to support integrated data as with an electronic health record (EHR).4-7

A number of federal programs and other initiatives are under way to help address some of these barriers. The Health Information  echnology for Economic and Clinical Health (HITECH) Act of 2009 includes up to $22.5 billion in financial incentives for eligible professionals who demonstrate “meaningful use” of interoperable EHRs capable of electronic exchange. HITECH also awarded more than $540 million to the Office of the National Coordinator for Health Information Technology (ONC) State Health Information Exchange (HIE) Program, which provides support for state-designated entities to ensure mechanisms are in place to enable providers to exchange clinical information.8 Furthermore, ONC’s Health Information Technology Certification Program seeks to ensure that EHR products include functionality that enables electronic exchange.9 In addition to the HITECH incentives and programs, a public-private initiative provides relatively simple technical solutions to enable directed exchange between 2 known providers.10 A community of participants from the public and private sector focus on providing tools, services, and guidance to promote functional interoperability.11

In the first stage of meaningful use, it was sufficient for providers to perform a test to demonstrate their EHR’s capacity to electronically exchange information.12,13 Stage 2 meaningful use requirements related to HIE have evolved to become more advanced. Physicians must go beyond demonstrating capability to exchange; they must actually electronically exchange key clinical data among providers and patient-authorized entities. Additionally, physicians must demonstrate the capability to send summary-of-care documents electronically to recipients with a different EHR vendor.14

Yet little is known about current physician capability to electronically exchange clinical information at a national or state level, both of which are relevant in implementing ONC’s strategy and in assessing its potential for success. We used a nationally representative survey of office-based physicians conducted in 2011 to provide a snapshot of physicians’ capability to electronically exchange clinical information  associated with key national priorities: pharmacy exchange(e-prescribing), laboratory exchange (including receipt of results and lab orders), and clinical summary exchange with patients and providers.15 This assessment provides both a portrait of exchange capability as of stage 1 meaningful use and a baseline for monitoring progress going forward as new policies and initiatives to accelerate HIE are implemented—in particular, stage 2 meaningful use. Future trends in physicians’ HIE capability could help assess the effectiveness of these policies. We describe physician exchange capability geographically across states and by EHR vendor. Finally, we examined the association between physician and practice characteristics, including adoption of EHRs, with physician capability to exchange different types of clinical information.

METHODS

Data Source and Collection


We analyzed the 2011 National Ambulatory Medical Care Survey Electronic Medical Record Supplement (NAMCS EMR supplement), a cross-sectional nationally representative survey of nonfederal office–based physicians who provide direct patient care.16 The overall sample consisted of 4326  hysician respondents, with a 61% weighted response rate. The sample size is sufficient to generate state-level estimates.

Measures of Electronic Exchange of Clinical Information

The NAMCS EMR supplement asks physicians to report on their practices’ capability to electronically exchange key types of clinical information, including pharmacy data, laboratory data, and patient clinical summaries (eAppendix A, available at www.ajmc.com).

To assess the capability of physicians to send pharmacy data and to send and receive laboratory data, we examined the percentage of physicians with the ability to send prescriptions electronically, send lab orders electronically, view lab results electronically, and incorporate lab results into the EHR. The latter item provides an indication of whether physicians receive results in a structured format that enables them to view and track individual test results.

To assess the capability of physicians to exchange patient clinical summaries, we examined the percentage of physicians who indicated that they “exchange patient clinical summaries electronically with any other providers” by either receiving and/or sending patient clinical summaries. This measure goes beyond capability to exchange, capturing actual exchange activity.

Analysis

We calculated estimates of the electronic exchange measures at the national and state levels, and examined whether physicians’ capability to exchange these types of clinical information at the state level differed from the national average. We used t tests to test for significant differences at the P <.05 level.

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Issue: October 2013
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