Vaccination Rates in Older Adults in Catalonia
Author Information
Author(s): Vila-Córcoles Angel, Ochoa-Gondar Olga, Ester Francisco, Sarrá Nuria, Ansa Xabier, Saún Neus, EVAN Study Group
Primary Institution: Primary Care Service of Tarragona-Valls, Catalonian Health Institute
Hypothesis
How did pneumococcal vaccination rates change after implementing a free vaccination program for older adults in Catalonia?
Conclusion
Pneumococcal vaccination coverage increased quickly after the introduction of free vaccination, but improvements slowed after two years.
Supporting Evidence
- Vaccination uptake increased from 38.6% in 2000 to 53.1% in 2003.
- Higher vaccination rates were observed in older individuals and those with more risk factors for pneumonia.
- The study found significant differences in vaccination rates based on age and presence of diseases.
Takeaway
This study looked at how many older people got vaccinated against pneumonia after a free vaccination program started, and found that while many got vaccinated at first, the numbers didn't keep going up as much after a couple of years.
Methodology
A retrospective population-based study was conducted including individuals aged 65 and older from 8 Primary Care Centres in Tarragona.
Potential Biases
The selection of PCCs was not randomized, which could introduce bias in the results.
Limitations
The study was limited to 8 non-randomly selected PCCs, which may not represent the entire population of Catalonia.
Participant Demographics
The study included 10,410 individuals aged 65 years or older, with a median age of 74.6 years; 4,481 were male and 5,929 were female.
Statistical Information
P-Value
p < 0.001
Confidence Interval
95% CI: 45.5–48.0 for ages 65–74, 95% CI: 58.9–61.8 for ages 75 and older
Statistical Significance
p < 0.001
Digital Object Identifier (DOI)
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