Joshua G Petrie1, Helene Fligiel2, Lois Lamerato3, Emily T Martin2, Arnold S Monto2. 1. Department of Epidemiology, University of Michigan, School of Public Health, Ann Arbor, United States. Electronic address: jpetrie@umich.edu. 2. Department of Epidemiology, University of Michigan, School of Public Health, Ann Arbor, United States. 3. Department of Public Health Sciences, Henry Ford Health System, Detroit, United States.
Abstract
BACKGROUND: Documentation of influenza vaccination, including the specific product received, is critical to estimate annual vaccine effectiveness (VE). METHODS: We assessed performance of the Michigan Care Improvement Registry (MCIR) in defining influenza vaccination status relative to documentation by provider records or self-report among subjects enrolled in a study of influenza VE from 2011 through 2019. RESULTS: The specificity and positive predictive value of MCIR were high; however, >10% of vaccinations were identified only by other sources each season. The proportion of records captured by MCIR increased from a low of 67% in 2013-2014 to a high of 89% in 2018-2019, largely driven by increased capture of vaccination among adults. CONCLUSIONS: State vaccine registries, such as MCIR, are important tools for documenting influenza vaccination, including the specific product received. However, incomplete capture suggests that documentation from other sources and self-report should be used in combination with registries to reduce misclassification.
BACKGROUND: Documentation of influenza vaccination, including the specific product received, is critical to estimate annual vaccine effectiveness (VE). METHODS: We assessed performance of the Michigan Care Improvement Registry (MCIR) in defining influenza vaccination status relative to documentation by provider records or self-report among subjects enrolled in a study of influenza VE from 2011 through 2019. RESULTS: The specificity and positive predictive value of MCIR were high; however, >10% of vaccinations were identified only by other sources each season. The proportion of records captured by MCIR increased from a low of 67% in 2013-2014 to a high of 89% in 2018-2019, largely driven by increased capture of vaccination among adults. CONCLUSIONS: State vaccine registries, such as MCIR, are important tools for documenting influenza vaccination, including the specific product received. However, incomplete capture suggests that documentation from other sources and self-report should be used in combination with registries to reduce misclassification.
Authors: Edward A Belongia; Melissa D Simpson; Jennifer P King; Maria E Sundaram; Nicholas S Kelley; Michael T Osterholm; Huong Q McLean Journal: Lancet Infect Dis Date: 2016-04-06 Impact factor: 25.071
Authors: Stephanie A Irving; James G Donahue; David K Shay; Tina L Ellis-Coyle; Edward A Belongia Journal: Vaccine Date: 2009-09-01 Impact factor: 3.641