Pneumococcal Polysaccharide Vaccination (PPSV23) in High-Risk Pediatric Patients With Diabetes.

Objective: The Advisory Committee on Immunization Practices recommends the pneumococcal polysaccharide vaccine (PPSV23) following the pneumococcal conjugate vaccine (PCV13) for pediatric patients aged 2 to 18 years with high-risk medical conditions. The PPSV23 is not a routine immunization for all pediatric patients and children who meet criteria for high-risk conditions may not consistently receive the PPSV23 vaccine, despite current recommendations. The goal of this study was to determine PPSV23 -vaccination rates in the high-risk pediatric patients with type 1 or type 2 diabetes.

Methods: A single-center retrospective cohort study was conducted. Patients were included if they were 2 to 18 years of age on January 1, 2019, with a diagnosis of diabetes, and had ≥1 encounters within the health care system in 2019. The primary outcome was PPSV23 vaccination rates in the high-risk diabetic pediatric population. Secondary outcomes included identifying missed opportunities for vaccinations and the incidence of invasive pneumococcal infections.

Results: A total of 366 patients met criteria for study inclusion. Patients had a mean age of 13.3 years and were predominantly white (69.8%). A total of 32 (8.7%) patients had documentation of PPSV23 vaccination. Baseline characteristics were comparable between the two groups. There were 32 cases of pneumonia charted before patients received the PPSV23 and one case reported after patients received the PPSV23 vaccination.

Conclusions: PPSV23 vaccination rates were low in this high-risk diabetic pediatric group, with many -documented missed opportunities for vaccination. This may be attributed to the vaccine not being a -routinely recommended for all pediatric patients.