<正>BACKGROUND AND OBJECTIVE Inflammatory spondyloarthritis (SpA) has been associated with an increased risk of myocardial infarction (MI). Additionally, non-steroidal anti-inflammatory drugs (NSAIDs) have been associated with an increased risk of cardiovascular events. This study examined the effect of NSAIDs use on the risk of MI in patients with inflammatory arthritis or osteoarthritis (OA).METHODS This case-control study was performed using data from The Health Improvement Network (THIN), a UK-based database of