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Association of State Laws and Healthcare Workers' Influenza Vaccination Rates.

Abstract

State laws are being used to increase healthcare worker (HCW) influenza vaccine uptake. Approximately 40% of states have enacted such laws but their effectiveness has been infrequently studied. Data sources for this study were the 2000-2011 U.S. National Health Interview Survey Adult Sample File and a summary of U.S. state HCW influenza vaccination laws. Hierarchical linear modeling was used for two time periods: 1) 2000-2005 (before enactment of many state laws) and 2) 2006-2011 (a time of increased enactment of state HCW influenza vaccination legislation). During 2000-2005, two states had HCW influenza vaccination laws and HCW influenza vaccination rates averaged 22.5%. In 2006-2011, 19 states had such laws and vaccination rates averaged 50.9% (p < 0.001). The likelihood of HCW vaccination increased with the scope and breadth, measured by a law score. Although laws varied widely in scope and applicability, states with HCW influenza vaccination laws reported higher HCW vaccination rates.

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