Vacinação contra a gripe em idosos não institucionalizados : estudo de base populacional

by Dip, Renata Maciulis

Abstract (Summary)
Influenza (flu) has a great impact on elderly morbidity and mortality rates. Vaccination is the most effective measure to prevent these disease?s complications. This population base study aimed to estimate the flu vaccine coverage in non-institutionalized elderly by conducting home interview surveys to analyze the factors for the vaccine?s nonacceptance and to identify post-vaccine adverse effects. The studied elderly population lived in the neighborhood under the care of Vila Brasil?s Basic Health Unit, which took part in the Family Health Program in Londrina, Paraná. The sample totalized 425 elderly who were sorted in groups to fill each census sector belonging to the subjected area. 29 people (6,8%) refused to participate or were not home on four attempted visits. 396 elderly aged 60 to 95 were interviewed. The average age found was 72,1, 56,1% were women, 58,6% had less than five schooling years and 17,2% belonged to economic class D and E. Although 100% of elderly said they knew about the vaccine, only 5,3% referred the doctor as their source of information. Vaccine coverage represented 73,0%. Among the ones that didn?t receive the vaccine, 83,2% (89 elderly) were explicit about not wanting to take it. The main reasons for that were the fear of the vaccine?s adverse effects and the lack of credibility on its effectiveness or need. However, the adverse effects prevalence found by this study was low (6,6%). The only adverse effect reported was flu symptoms experienced until up to two weeks after the vaccination. Multivariate analysis showed that age (under 70 years old), smoking (being a smoker) and not having a doctor appointment over the last year were independently associated to the vaccine?s nonacceptance. The presented results highlight the need to enlighten the population regarding the low prevalence of post-vaccine adverse effects as well as the vaccine?s need and real effectiveness. It was clear that an improvement on the vaccination campaign is needed, especially towards two different groups: elderly under 70 years old and smoking ones. As such, new studies should be made to develop a more specific communication approach for each of these lower acceptance groups.
This document abstract is also available in Portuguese.
Bibliographical Information:

Advisor:Marcos Aparecido Sarria Cabrera; Marcos Aparecido Sarria Cabrera [Orientador].; Maria Rita Donalisio; Olavo Franco Ferreira Filho


School Location:

Source Type:Master's Thesis

Keywords:Public health Influenza Vaccines Aged - Vaccination


Date of Publication:12/04/2007

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