Sex differences in symptoms experienced, knowledge about symptoms, symptom attribution, and perceived urgency for treatment seeking among acute coronary syndrome patients in Karachi Pakistan.

Background: Patients' experience of acute coronary syndrome (ACS) symptoms is important in determining their prehospital delay.

Objective: To explore gender differences in acute symptoms of ACS, knowledge about the symptoms, their attribution, and perception of urgency, among Pakistani ACS patients.

Methods: Comparative, cross-sectional study design with 249 ACS patients.