Prevalence and factors associated with 2009 to 2011 influenza vaccinations at a university medical center

American Journal of Infection Control
Vol 41 | No. 9 | September 2013 | Pages 759-852

Prevalence and factors associated with 2009 to 2011 influenza vaccinations at a university medical center
Kathleen A. Crowley, RPA-C, MPH; Ronnie Myers, DDS; Lori A. Magda, MA; Stephen S. Morse, PhD; Paul Brandt-Rauf, MD, DrPH, SciD; Robyn R.M. Gershon, MT, MHS, DrPH

Information on the rates and factors associated with influenza vaccinations, although limited, is important because it can inform the development of effective vaccination campaigns in a university medical center setting.

A study was conducted in 2011 to identify individual and organizational level barriers and facilitators to influenza vaccination among clinical and nonclinical personnel (N = 428) from a major university medical center.

Seventy-one percent of clinical personnel (n = 170) reported pandemic H1N1 vaccination compared with 27% of nonclinical personnel (n = 258), even though vaccine was made widely available to all personnel at no cost. Similarly, disparate rates between clinical and nonclinical personnel were noted for the 2009/2010 seasonal influenza vaccine (82% vs 42%, respectively) and 2010/2011 combination (pandemic plus seasonal) influenza vaccine (73% vs 28%, respectively). Factors associated with pandemic vaccination in nonclinical personnel included the following: high level of influenza-related knowledge, concern regarding influenza contagion, history of previous influenza vaccinations or influenza illness, participation in vaccine-related training, and awareness of the institution’s written pandemic plan. For clinicians, past history of seasonal influenza vaccination was associated with pandemic vaccination. For all participants, taking any 1 or more of the 3 influenza vaccines available in 2009 to 2011 was associated with intent to take a hypothetical future novel pandemic vaccine (odds ratio, 6.7; 95% confidence interval: 4.32-10.44; P < .001).

Most of the risk factors associated with lack of vaccination uptake are amenable to organizational strategies