Frailty predicts adverse outcomes in older patients with pulmonary embolism.

Aim: This study aims to evaluate the impact of frailty on the outcomes of older patients with pulmonary embolism (PE).

Methods: Using the National Inpatient Sample database, we identified 288 070 patients aged 65 or older who were admitted with a primary diagnosis of PE from 2017 to 2019. Frailty was assessed using the Hospital Frailty Risk Score (HFRS), and patients were categorized into low-, intermediate-, and high-frailty-risk groups.