Vaccine 19 (2001) 4760–4767
Importance of patients’ perceptions and general practitioners’
recommendations in understanding missed opportunities for
immunisations in Swiss adults
Patrick A. Bovier
a,
*, Eric Chamot
b
, Martine Bouvier Gallacchi
c
, Louis Loutan
a
a
Department of Community Medicine, Genea Uniersity Hospitals, 24 Micheli -du -Crest, 1211 Genea 14, Switzerland
b
Institute of Social and Preentie Medicine, Genea Uniersity, 1 Michel -Seret, 1211 Genea 4, Switzerland
c
General Internal Medicine Practice, ia Pocobelli 16, 6815 Melide, Switzerland
Received 16 January 2001; received in revised form 30 May 2001; accepted 31 May 2001
Abstract
Over the last decades, tremendous efforts have been made to strengthen childhood immunisation programs. However, the
burden of influenza and pneumococcal infections remains disturbingly high in adults and elderly. We conducted a cross-sectional
self-administered mail survey to identify characteristics associated with low use of recommended vaccines in adult patients
attending routine primary care appointments in Switzerland. Tetanus vaccination was reported by 84% of respondents aged
16 – 34, and by only 42% of respondents aged 65 or more. For influenza and pneumococcal vaccination, of high-risk patients (age
65 or history of diabetes, kidney, heart, or chronic pulmonary disease), only 41% were on schedule for influenza and 6% for
pneumococcal vaccination. Compared with patients from the German- and Italian-speaking areas of the country, patients from
the French-speaking region were more likely to report past immunisation against influenza and pneumococcal disease or a recent
physician’s recommendation for immunisation against influenza, but equally likely to have ever refused influenza vaccination. For
all three diseases, area of residence, physician’s recommendation for immunisation, and patient’s perceived usefulness of
vaccination were independently and significantly associated with vaccination status. Although patient’s opinion is an important
determinant of vaccination coverage in adults, lack of physician’s encouragement accounted for most missed vaccination
opportunities in this study. The higher vaccination coverage among patients from the French-speaking area suggests that the
promotion campaigns carried out in this region effectively improved influenza vaccine use. Interventions designed to increase
vaccination coverage in adults must help providers incorporate immunisation in routine health care. © 2001 Published by Elsevier
Science Ltd.
Keywords: Primary care; Adult; Immunisation
www.elsevier.com/locate/vaccine
1. Introduction
Over the past decades, tremendous efforts have been
made world-wide to strengthen childhood immunisa-
tion programs. Immunisation coverage has increased in
most regions and cases of vaccine-preventable diseases
have fallen by 90 – 100% in children of industrialised
nations. Polio eradication may be on the horizon.
In contrast to these successes, the burden of influenza
and pneumococcal infections remains disturbingly high
in older adults of most countries, and cases of tetanus
are still regularly reported. A common characteristic of
all three diseases is that their residual incidence in older
age groups results directly from adults’ underimmunisa-
tion [1–4].
Several factors have been proposed to account for
the poor implementation of recommended schedules for
immunisations in adults [5]: (1) The limited perception
by health care providers and the general public that
adult vaccine-preventable diseases are important health
problems; (2) doubts in the doctors’ and patients’
minds about the efficacy and safety of the vaccines used
for adults; (3) the complexity of vaccine schedules in
* Corresponding author. Tel.: +41-22-372-9610; fax: +41-22-372-
9626.
E-mail address: patrick.bovier@hcuge.ch (P.A. Bovier).
0264-410X/01/$ - see front matter © 2001 Published by Elsevier Science Ltd.
PII:S0264-410X(01)00223-7