Association Between Introduction of the 23-valent Pneumococcal Polysaccharide Vaccine (PPSV23) and Pneumonia Incidence and Mortality Among General Older Population in Japan: A Community-based Study.

J Epidemiol · 2025 · PMC11979344 · PMID 39647911

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a decreasing trendno p-value reported

Before the start of the project, the mortality rate of pneumonia increased at a rate of 0.23/1,000 population per year, but after the start of the project, the rate turned to a decreasing trend at a rate of 0.04/1,000 population per year.

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