Cg. Stevenson et al., Prevention of influenza and pneumococcal pneumonia in Canadian long-term care facilities: How are we doing, CAN MED A J, 164(10), 2001, pp. 1413-1419
Citations number
44
Categorie Soggetti
General & Internal Medicine","Medical Research General Topics
Background: Influenza and pneumococcal pneumonia are serious health problem
s among elderly people and a major cause of death in long-term care facilit
ies. We describe the results of serial surveys of vaccination coverage and
influenza outbreak management in Canadian long-term care facilities over th
e last decade.
Methods: Cross-sectional surveys consisting of questionnaires mailed to all
Canadian residential long-term care facilities for elderly people in 1991
and to a random sample of respondents in 1995 and 1999.
Results: The response rates were 83% (430/515) in 1995 and 75% (380/506) in
1999. In 1999 the mean reported rates of influenza vaccination were 83% am
ong residents and 35% among staff, and the mean rate of pneumococcal vaccin
ation among residents was 71%; all 3 rates were significantly higher than t
hose in 1991. The rates were also higher in facilities with an infection co
ntrol practitioner than in those without such an individual (88% v. 82% for
influenza vaccination among residents [p < 0.001], 42% v. 35% for influenz
a vaccination among staff [p = 0.008] and 75% v. 63% for pneumococcal vacci
nation among residents [p < 0.001]). Obtaining consent for vaccination on a
dmission to the facility was associated with higher influenza and pneumococ
cal vaccination rates among residents (p = 0.04 and p < 0.001 respectively)
. Facilities with higher influenza vaccination rates among residents and st
aff reported lower rates of influenza outbreaks (p = 0.08 and 0.03 respecti
vely). Despite recommendations from the National Advisory Committee on Immu
nization, only 50% of the facilities had policies for amantadine prophylaxi
s during influenza A outbreaks. Amantadine was judged effective in controll
ing 76% of the influenza A outbreaks and was discontinued because of side e
ffects in 3% of the residents.
Interpretation: Influenza and pneumococcal vaccination rates among resident
s and staff in Canadian long-term care facilities have increased over the l
ast decade but remain suboptimal. Vaccination of residents and staff agains
t influenza is associated with a reduced risk of influenza outbreaks. Amant
adine is effective in controlling influenza outbreaks in long-term care fac
ilities.