Trends in influenza vaccine coverage among primary healthcare
workers in Spain, 2008–2011
Jesús Castilla
a,b,
⁎, Iván Martínez-Baz
a,b
, Pere Godoy
b,c
, Diana Toledo
b,d
, Jenaro Astray
e
, Susana García
f
,
José María Mayoral
g
, Vicente Martín
b,h
, Fernando González-Candelas
b,i
, Marcela Guevara
a,b
,
José Diaz-Borrego
g
, Núria Torner
b,d,k
, Maretva Baricot
b
, Sonia Tamames
j
,
Angela Domínguez
b,k
, the CIBERESP Working Group for the Survey on Influenza Vaccination in Primary
Healthcare Professionals
a
Instituto de Salud Pública de Navarra, Pamplona, Spain
b
CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
c
Agencia de Salud Pública de Cataluña, Barcelona, Spain
d
Servicio de Epidemiología, Agencia de Salud Pública de Barcelona, Spain
e
Área de Epidemiología, Comunidad de Madrid, Spain
f
Hospital Galdakao-Usansolo, Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Bizkaia, Spain
g
Servicio de Vigilancia de Andalucía, Sevilla, Spain
h
Instituto de Biomedicina, Universidad de León, Spain
i
Centro Superior de Investigación en Salud Pública, Universidad de Valencia, Spain
j
Dirección General de Salud Pública, Investigación, Desarrollo e Innovación, Junta de Castilla y León, Spain
k
Departamento de Salud Pública, Universidad de Barcelona, Spain
abstract article info
Available online 1 June 2013
Keywords:
Influenza vaccination
Primary health care
Healthcare workers
Vaccine coverage
Pandemic influenza
Objective. To evaluate trends in seasonal influenza vaccination coverage in primary healthcare workers
(PHCWs) in Spain between 2008 and 2011.
Methods. We made an anonymous web survey of PHCWs in 2012. Information on attitudes towards and
knowledge of influenza vaccine, and immunization in previous seasons was collected. Self-reported vaccination
coverage and factors related to vaccination continuity were analysed.
Results. Of 5433 workers contacted, 2625 (48.3%) responded to the survey: 47.0% were general practitioners,
10.3% paediatricians and 42.7% nurses. Their reported vaccination rates from seasons 2008–2009 to 2011–2012
decreased over time: 58.4%, 57.4%, 53.2% and 49.3% (linear trend, p b 0.001). Among workers vaccinated in any
previous season, 70.2% were vaccinated again in 2011–2012, compared with 5.2% among those not previously
vaccinated (p b 0.001). Continuity of vaccination increased with age and with the worker or cohabitant having
a major chronic condition. Vaccination was higher in workers who recognized vaccination as effective and those
worried about being infected or infecting patients.
Conclusion. Influenza vaccination coverage in PHCWs has declined, especially after the pandemic. Intensive
interventions are needed to change this trend. Knowledge of vaccination should be reinforced by stressing the
effectiveness of the vaccine and the risks of influenza for workers and patients.
© 2013 Elsevier Inc. All rights reserved.
Introduction
Influenza affects a significant percentage of the population annually
and is associated with excess hospitalization and mortality (Glezen,
1982). The main preventive measure is annual vaccination (Fifty-sixth
World Health Assembly, 2003).
Various reasons justify influenza vaccination in healthcare workers:
firstly, to protect their health, as healthcare workers have a greater
probability of infection; secondly, to avoid sick leave during periods of
increased demand for health services; and thirdly, to avoid disease
transmission and thereby reduce morbidity and mortality in patients
(Carman et al., 2000; Castilla et al., 2013; Jordan and Hayward, 2009;
Potter et al., 1997; Vanhems et al., 2011).
Annual influenza vaccination is recommended for all healthcare
workers who have no contraindications (Centers for Disease Control
and Prevention, 2011; European Union, 2009). In Spain, influenza
vaccination is recommended and offered voluntarily free-of-charge to
all healthcare workers (Ministerio de Sanidad Servicios Sociales e
Igualdad, 2012a). Every year a campaign publicizes vaccination sites
and encourages workers to be vaccinated; despite it, coverage rarely
Preventive Medicine 57 (2013) 206–211
⁎ Corresponding author at: Instituto de Salud Pública de Navarra, Leyre 15. 31003
Pamplona, Navarra, Spain. Fax: +34 848423474.
E-mail address: jcastilc@navarra.es (J. Castilla).
0091-7435/$ – see front matter © 2013 Elsevier Inc. All rights reserved.
http://dx.doi.org/10.1016/j.ypmed.2013.05.021
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Preventive Medicine
journal homepage: www.elsevier.com/locate/ypmed