Population characteristics associated with pharmacy-based influenza vaccination in United States survey data.

Objectives: To examine the population characteristics associated with the health behavior of receiving an influenza vaccine from a pharmacy-based setting.

Design: Secondary analysis of data from states that participated in an optional influenza module in the 2014 Behavioral Risk Factor Surveillance System, a state-based observational survey of U.S.

Diffusion of Pharmacy-Based Influenza Vaccination Over Time in the United States.

Objectives: To examine pharmacy-based influenza vaccination using diffusion of innovation theory.

Methods: We used 1993 to 2013 Behavioral Risk Factor Surveillance System data to generate weighted prevalence rates of influenza vaccination, stratified by age (18-64 years vs ≥ 65 years) and state of residence. The diffusion of innovation theory adopter categories were residents of states allowing pharmacist vaccination before 1996 ("innovator/early adopters"), between 1996 and 1998 ("early majority"), between 1999 and 2004 ("late majority"), and in 2007 or later ("laggards").