Update on acetylsalicylic acid for primary prevention of cardiovascular disease: Not initiating is not the same thing as discontinuing.

It has been almost 4 years since I addressed questions in this journal about the use of acetylsalicylic acid (ASA) for primary prevention of cardiovascular disease.[1][1] We have long awaited the results of 4 studies to help shed light on and assist with reliably deciding whether to use ASA in