Analysis of prehospital delay in acute ischaemic stroke and its influencing factors: a multicentre prospective case registry study in China.

Background: Prehospital delay in acute ischaemic stroke (AIS) remains prevalent in China. We aimed to assess the status of the onset-to-door time (ODT) in AIS and analyse its influencing factors.

Methods: Data were collected from a prospective multicentre hospital-based registry (China National Cerebrovascular Disease Prevention and Control Project Management Special Database) of patients with AIS involving 21 hospitals across different economic and geographical regions in China in 2022.