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Observational Study
. 2017 Jul;32(7):790-795.
doi: 10.1007/s11606-017-4046-6. Epub 2017 Mar 23.

Using Active Choice Within the Electronic Health Record to Increase Influenza Vaccination Rates

Affiliations
Observational Study

Using Active Choice Within the Electronic Health Record to Increase Influenza Vaccination Rates

Mitesh S Patel et al. J Gen Intern Med. 2017 Jul.

Abstract

Background: Despite the benefits of influenza vaccination, each year more than half of adults in the United States do not receive it.

Objective: To evaluate the association between an active choice intervention in the electronic health record (EHR) and changes in influenza vaccination rates.

Design: Observational study.

Patients: Adults eligible for influenza vaccination with a clinic visit at one of three internal medicine practices at the University of Pennsylvania Health System between September 2010 and March 2013.

Intervention: The EHR confirmed patient eligibility during the clinic visit and, upon accessing the patient chart, prompted the physician and their medical assistant to actively choose to "accept" or "cancel" an order for the influenza vaccine.

Main measures: Change in influenza vaccination order rates at the intervention practice compared to two control practices for the 2012-2013 flu season, comparing trends during the prior two flu seasons adjusting for time trends and patient and clinic visit characteristics.

Key results: The sample (n = 45,926 patients) was 62.9% female, 35.9% white, and 54.4% black, with a mean age of 50.2 years. Trends were similar between practices during the 2 years in the pre-intervention period. Vaccination rates increased in both groups in the post-intervention year, but the intervention practice using active choice had a significantly greater increase than the control (adjusted difference-in-difference: 6.6 percentage points; 95% CI, 5.1-8.1; P < 0.001), representing a 37.3% relative increase compared to the pre-intervention period. More than 99.9% (9938/9941) of orders placed during the study period resulted in vaccination.

Conclusions: Active choice through the EHR was associated with a significant increase in influenza vaccination rates.

Keywords: active choice; behavioral economics; choice architecture; electronic health record; influenza vaccination; nudge; physician behavior.

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Conflict of interest statement

Dr. Patel is a principal at Catalyst Health, a behavior change and technology consulting firm. Dr. Volpp is a principal at VAL Health, a behavioral economics consulting firm. Dr. Volpp has also received consulting income from CVS Caremark and research funding from Humana, CVS Caremark, Discovery (South Africa), Hawaii Medical Services Association, and Merck, none of which is related to the work described in this manuscript. All other authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Influenza vaccination order rates for the intervention and control practices before and after active choice implementation. Percentage of patients with an order placed for the influenza vaccination at the intervention practice (gray dashed line) and the two control practices (black solid line) for the following influenza seasons: pre-intervention year 2 (Sept 2010 to March 2011), pre-intervention year 1 (Sept 2011 to March 2012), and post-intervention year (Sept 2012 to March 2013).

Comment in

References

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