Risk of acute coronary syndrome and relationship with the use of khat and tobacco products in the Jazan region, Saudi Arabia: A prospective case-control study.

Introduction: Previous studies have identified several risk factors for acute coronary syndrome (ACS). This study was intended to examine the potential risk of ACS associated with khat and tobacco use.

Methods: A case-control study of 344 people (172 cases and 172 controls) was conducted at Prince Mohammed Bin Nasser Hospital in Jazan, Saudi Arabia, from April to September 2019.