IntroductionPotentially inappropriate medications (PIMs), are common among residents of long-term care institutions (LTCIs) and may contribute to cognitive impairment (CIm). STOPPCog criteria, developed in 2025, support the identification of PIMs relevant to cognition and accuracy of dementia treatment.ObjectivesThe study aimed to identify PIMs according to the STOPPCog criteria among residents of long-term care institutions in Poland, and to assess the association between CIm and exposure to sp