Abbreviations: CNSR, China National Stroke Registry; CPSS,
Cincinnati Prehospital Stroke Scale; ESI, Emergency Severity Index; FAST, Face Arm Speech Test; GCNKSS, Greater Cincinnati/Northern Kentucky Stroke Study; LAPSS, Los Angeles Prehospital Stroke Screen; LOC, loss of consciousness; MASS, Melbourne Ambulance Stroke Screen; Med PACS, Medic Prehospital Assessment for Code Stroke; NIHSS, National Institutes of Health Stroke Scale; n/v, nausea or vomiting; OPSS, Ontario Prehospital Stroke Screening Tool; ROSIER, Recognition of Stroke in the Emergency Room; SOB, shortness of breath.