[Impact of various strategies on the rates of flu vaccination in the elderly].
OBJECTIVE
To calculate the impact of different interventions on the rates of anti-flu vaccination in people aged 65 and over.


METHODS
Ecological study with analytical components.


METHODS
Health centres and clinics in two health areas in the Community of Valencia.


METHODS
Care units, characterised by their coverage of stable nuclei of 500 or more people, total population of 415,172 inhabitants.


METHODS
Use of the communication media, personal invitations by post and telephone; follow-up of activity, discussion of results, external evaluations; registration of people to be vaccinated and prior order to nursing staff to vaccinate.


RESULTS
The coverage in quartiles of the previous season and the human resources per thousand inhabitants were the structural factors which best explained the vaccination rates. In the multivariate analysis, invitation by letter had relative risk (RR) of 1.062 (95% CI, 1.036-1.088); telephone call, RR 1.075 (95% CI, 1.021-1.132); discussion of external evaluations, RR 1.046 (95% CI, 1.024-1.068); and the order of vaccination to nursing staff, RR 1.056 (95% CI, 1.025-1.088). All these were associated with greater coverage. The absolute difference in coverage achieved between the care units which invited people to be vaccinated by letter and phone, at which nurses vaccinated directly, and which discussed external evaluations, and the units which did not perform these above activities, was 14 points (95% CI, 13.3-14.5), independently of the other factors.


CONCLUSIONS
The previous year's coverage, human resources, invitation by letter or phone, the order to nursing to vaccinate and the discussion of external evaluations, were all associated, independently, with higher rates of vaccination.
Puig-Barberà
J
J
Unidad de Programas de Promoción de Salud, Centro de Salud Pública de Castellón, Conselleria de Sanitat, Generalitat Valenciana. juan.puig@sanidad.m400.gva.es
Ors Zarzoso
P
P
Vilchez Peña
C
C
Lloria Paes
F
F
D000368:Aged; D006801:Humans; D017589:Immunization Programs; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D013030:Spain; D014611:Vaccination / Q000706:statistics & numerical data*
D007252:Influenza Vaccines
Impacto de distintas estrategias en las tasas de vacunación antigripal en ancianos. Estudio del Impacto de Diversas Actividades en la Cobertura Vacunal (GEDAC).