To determine the impact of a vaccination reminder in an electronic health record supplemented with data from an immunization information system (IIS).
METHODS:A noninterruptive influenza vaccination reminder, based on a real-time query of hospital and city IIS, was used at 4 urban, academically affiliated clinics serving a low-income population. Using a randomized cluster-crossover design, each study site had "on" and "off" period during the fall and winter of [2011][2012]. Influenza vaccination during a clinic visit was assessed for 6-month to 17-year-old patients. To assess sustainability, the reminder was active at all sites during the 2012-2013 season.
RESULTS:In the 2011-2012 season, 8481 unique non-up-to-date children had visits. Slightly more non-up-to-date children seen when the reminder was 'on' were vaccinated than when 'off' (76.2% vs 73.8%; P = .027). Effects were seen in the winter (67.9% vs 62.2%; P = .005), not fall (76.8% vs 76.5%). The reminder also increased documentation of the reason for vaccine non-administration (68.1% vs 41.5%; P , .0001). During the 2011-2012 season, the reminder displayed for 8630 unique visits, and clinicians interacted with it in 83.1% of cases where patients required vaccination. During the 2012-2013 season, it displayed for 22 248 unique visits; clinicians interacted with it in 84.8% of cases.CONCLUSIONS: An IIS-linked influenza vaccination reminder increased vaccination later in the winter when fewer vaccine doses are usually given. Although the reminder did not require clinicians to interact with it, they frequently did; utilization did not wane over time.
WHAT'S KNOWN ON THIS SUBJECT:Frequency of influenza vaccination is low, partially because of missed opportunities to vaccinate. Barriers to implementing successful influenza vaccination reminders in the electronic health record include alert fatigue and incomplete vaccination information due to scattered records.
WHAT THIS STUDY ADDS:A noninterruptive, immunization information system-linked influenza vaccination reminder can increase vaccination late in the winter when fewer vaccine doses are usually administered. Tailoring the reminder to clinicians' needs can increase its use. Dr Stockwell conceptualized and designed the study, analyzed the data, and drafted the initial manuscript; Drs Catallozzi, Findley, Kukafka, Hofstetter, and Vawdrey contributed to the conceptualization and design of the study and reviewed and revised the manuscript; Mr Camargo implemented the reminder application, provided data management and data collection tools, and critically reviewed the manuscript; Dr Ramakrishnan and Mr Holleran contributed to the design of the study, aided in data analysis, and critically reviewed the manuscript; Dr Fernandez aided in data collection and critically reviewed the manuscript; and all authors approved the final manuscript as submitted. This manuscript' s contents are solely the responsibility of the authors and do not necessarily represent the official views of the Agency for Healthcare Research and Q...