Introduction
Pneumococcal vaccination rates are critically low among high-risk patients, particularly those with heart failure (HF), who face increased risk of severe infections and complications.
Objective
A prospective interventional trial was designed to evaluate the impact of an incentive campaign carried out by the French health insurance.
Method
Is study was an open-label pragmatic cluster randomized controlled trial involving general practitioners (GPs) and their related patients with chronic HF in a French region, identified through the regional health insurance database. HF patients were assigned to intervention or control groups based on the randomized allocation of their treating GPs. In the intervention group, both GPs and their patients received two vaccination incentive letters, whereas the control group was only observed.
Results
3952 GPs and 12,285 corresponding patients with HF were included between Mar 23, 2023 and Mar 23, 2024. The pneumococcal vaccination rate at one year was 35% in the intervention group (n = 6140) versus 3.5% in the control group (n = 5937). Multivariable analyses showed a 15-fold higher probability of vaccination in patients receiving the intervention. The vaccination rate increased with male patients, female GP, and previous influenza vaccination but decreased in younger (<70 years) and older patient age (>85 years). The pneumococcal vaccination was associated with a notable reduction in overall mortality (Fig. 1).
Conclusion
This randomized study demonstrated the effectiveness of a mail-in promotion to sustainably increase pneumococcal vaccination coverage in a frail high-risk population. Furthermore, pneumococcal vaccination was associated with a notable reduction in overall mortality.
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