Association Between COVID-19 Vaccination and Neuropsychiatric Conditions

Introduction: This study explores the potential associations between COVID-19 vaccination and neuropsychiatric conditions. Methods: Data were collected from the CDC and FDA. The VAERS database was queried from January 1, 1990, to December 27, 2024, for adverse events (AEs) involving neuropsychiatric complications following COVID-19 vaccination. The timeframe included 420 months for all vaccines except COVID-19 vaccines which have been available to the public for only 48 months. Proportional reporting ratios (PRRs) were calculated by time comparing AEs after COVID-19 vaccination to those after influenza vaccination and to those after all other vaccines. The CDC/FDA stipulates a safety concern if a PRR is ≥ 2. Results: Comparing COVID-19 vaccination to influenza vaccinations, the CDC/FDA’s safety signals (PRR, 95% confidence interval, p-value, Z-score) were breached for the following combinations: 47 AEs associated with cognitive impairment (PRR: 118, 95% CI: 87.2-160, p < 0.0001, Z-score: 30.9); 28 AEs associated with general psychiatric illness (PRR: 115, 95% CI: 85.1-156, p < 0.0001, Z-score: 30.8); and 11 AEs associated with suicide/homicide (PRR: 80.1, 95% CI: 57.3-112, p < 0.0001, Z-score: 25.7). Conclusions: There are alarming safety signals regarding neuropsychiatric conditions following COVID-19 vaccination, compared to the influenza vaccinations and to all other vaccinations combined.