“…A score >5 (from seven variables) predicts nonsurvival following in-hospital cardiac arrest (IHCA) [2,3]. Porter and colleagues demonstrated that PAR >5 is a useful predictor of nonsurvival for combined IHCA/OHCA ICU admissions [4]. We aim to evaluate PAR application to adult ICU admissions at University Hospitals Bristol (UHB), UK following OHCA.…”