Survey measures influenza vaccination coverage among U.S. adults aged 18 and older

This observational survey report from the United States aimed to measure the age-adjusted percentage of adults aged 18 years and older who had received an influenza vaccination in the past 12 months during 2019. The study design was a survey, and no comparator group was reported. The specific age-adjusted vaccination percentage, absolute numbers, effect sizes, and statistical measures (p-values or confidence intervals) were not reported in the provided data. The report only describes the topic of measurement.

No information on safety, adverse events, or tolerability related to vaccination was reported in this survey data. The survey did not report on any specific limitations, funding sources, or conflicts of interest.

As an observational survey, this report can only describe an association or measurement at a population level; it cannot support causal inferences about vaccination effects. The practice relevance of the findings was not reported. Clinicians should interpret this as descriptive public health data rather than evidence for clinical decision-making, especially since the key outcome metric (the vaccination percentage) was not provided.