Objective:

To know the adherence to influenza vaccination in elderly people who attended specific workshops.

Design:

Quasi-experimental study.

Location:

Primary Care Teams.

Participants:

76 people who participated in workshops on influenza, and 116 who did not participate in these workshops used as controls.

Main measurements:

We compared vaccination percentages between 2009 and 2013, according to data from computerized medical records. A survival analysis was carried out to know how long the patients maintained their vaccination adherence, considering as "non adherence" the first time they were not vaccinated.

Results:

The proportion of vaccinated patients was higher in those who had participated in the workshops: 68.6 % (95% CI: 54.9-82.3) vs 61.2 % (95% CI: 51.9-70.5), than in those who had not participated, but the differences were not statistically significant (NS). The vaccination was discontinued in 45.1 % (95% CI: 30.5-59.7) and in 42.2 % (95% CI: 32.8-51.7), respectively, with a mean adherence of 2 years in both groups (NS). We found significant differences between both groups in relation to those unvaccinated the year prior to their inclusion in the study who did vaccinate the year after: 14.9 % vs. 5 %, respectively in those who had participated in the workshops and in those who had not participated (p < 0.05).

Conclusion:

Even though older people's participation in specific workshops on influenza can stimulate influenza vaccination initially, there is no significant long-term improvement.

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