Potentially inappropriate prescribing according to STOPP-2 criteria among patients discharged from Internal Medicine: prevalence, involved drugs and economic cost.

Aim: This study aims to determine the prevalence of potentially inappropriate prescribing (PIP) among patients discharged from Internal Medicine, the drugs and factors associated and economic cost of PIP.

Methods: This retrospective cross-sectional, single-center study included participants aged ≥65 years consecutively discharged from the Internal Medicine Unit in a tertiary hospital of Southern Spain. PIP was defined by the Screening Tool for Older Persons Prescriptions (STOPP-2) criteria version 2 (2015 update).