Electronic Health Record Portal Messages and Interactive Voice Response Calls to Improve Rates of Early Season Influenza Vaccination: Randomized Controlled Trial

Jessica G Wijesundara   ¹ , MPH ;   Mayuko Ito Fukunaga   ^{1, 2, 3} , MD ;   Jessica Ogarek   ⁴ , MS ;   Bruce Barton   ¹ , PhD ;   Lloyd Fisher   ^{5, 6} , MD ;   Peggy Preusse   ⁶ , RN ;   Devi Sundaresan   ⁶ , MS ;   Lawrence Garber   ^{2, 6} , MD ;   Kathleen M Mazor   ^{2, 3} , EdD ;   Sarah L Cutrona   ^{1, 7} , MD, MPH

¹ Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, United States

² Meyers Primary Care Institute, Worcester, MA, United States

³ Department of Medicine, University of Massachusetts Medical School, Worcester, MA, United States

⁴ Center for Gerontology and Healthcare Research, Brown University, Providence, MA, United States

⁵ Department of Pediatrics, University of Massachusetts Medical School, Worcester, MA, United States

⁶ Reliant Medical Group, Worcester, MA, United States

⁷ Health Services Research & Development, Center of Innovation, Edith Nourse Rogers Memorial Hospital, Veterans Health Administration, Bedford, MA, United States