Assessment of Low-dose ASA Discontinuation Risk Associated With Concomitant PPI Use During the First Year of ASA Therapy

Inclusion Criteria

• •Patients aged 50-84 years in 2000-2007.
• •Patients with first prescription of low dose ASA ( see study population description).
• •Patients were required to have been enrolled with their primary care practitioner (PCP) for at least 2 years and to have a computerized prescription history of at least 1 year before the start of the study.