Computer-Aided Detection in Mammography

antihypertensive medication users, and 4.8% of OC medication users had at least 1 cigarette co-purchase (Table ).Across all medication classes, patients with a cigarette co-purchase made an average of twice as many monthly store visits (1.9 vs 0.9 in all patients).Among patients who purchased cigarettes, the median number of store visits with a cigarette purchase was 2; 25% of asthma and COPD medication users had 4 to 53 visits, OC users had 4 to 94 visits, and antihypertensive medication users had 4 to 135 visits.Approximately 10% of patients with cigarette purchases were taking medications in 2 or 3 of the classes.Discussion | Using a novel data source that links retail pharmacy purchase data to prescription dispensing data, we found that 1 in 20 patients who were taking medications in 3 classes purchased cigarettes at the pharmacy.On average, these patients made a cigarette purchase at the pharmacy every other month.Our analysis is limited by potentially incomplete purchasing information because individuals may not use their loyalty cards for every purchase, and these data do not capture cigarette purchases made at other locations.Some of the cigarette purchases may have been made for or by another household member with whom the patient shares their loyalty card.Nevertheless, our results highlight an opportunity to improve outcomes for patients receiving widely used treatments.The decision of some pharmacies, including CVS, to stop selling cigarettes has been met with widespread support from public health and medical organizations.