Influenza vaccination campaign in the workplace of a spanish bank.

Seasonal influenza, also known as the flu, causes significant morbidity and mortality worldwide. It constitutes a public health issue with mayor socioeconomic implications. Vaccination is the primary preventive measure against influenza. This study aimed to describe the 2022-23 flu vaccination campaign at the workplace of a financial company in Spain. This descriptive cross-sectional study included data from the 4,807 vaccinated employees, which represents 14% of the workforce. Statistical analysis was conducted based on gender, age, and workplace (Madrid, outside Madrid) using Pearson's Chi-square test, logistic regression, and Odds ratio. This paper reports an appointment adherence rate exceeding 90%. Employees working in Madrid were 3.41 times more likely to have been vaccinated compared to those outside Madrid (95% CI, 3.17 to 3.68). Compared to younger workers, individuals aged 44 and older were 1.57 times more likely to have received the vaccine (95% CI, 1.46 to 1.66). The workplace provides a convenient setting for flu vaccination campaigns. The geographical dispersion and remoteness of the Medical Centre's location affect the flu vaccination rate. Significant regulatory differences have been identified between the CDC and the Spanish Ministry of Health regarding vaccination in the working-age population.