Antibiotic use without a Prescription: A multi-site Survey of Patient, Health System, and Encounter Characteristics.

Abstract

Use of antibiotics without a prescription is potentially unsafe and may increase the risk of antimicrobial resistance. We evaluated the effect of patient, health system, and clinical encounter factors on intention to use antibiotics without a prescription: (1) purchased in the United States (U.S.), (2) obtained from friends or relatives, (3) purchased abroad, or 4) from any of these sources. Survey was performed January 2020 - June 2021 in six publicly-funded primary care clinics and two private emergency departments in Texas, U.S. Participants included adult patients visiting one of the clinical settings. Non-prescription use was defined as use of antibiotics without a prescription, and intended use was professed intention for future non-prescription antibiotic use. Of 564 survey respondents (33% Black and 47% Hispanic or Latino), 246 (43.6%) reported prior use of antibiotics without a prescription, and 177 (31.4%) reported intent to use antibiotics without a prescription. If feeling sick, respondents endorsed that they would take antibiotics: obtained from friends/relatives (22.3% of 564), purchased in the U.S. without a prescription (19.1%), or purchased abroad without a prescription (17.9%). Younger age, lack of health insurance and a perceived high cost of doctor visits were predictors of intended use of non-prescription antibiotics from any of the source. Other predictors of intended use were lack of transportation for medical appointments, language barrier to medical care, Hispanic or Latino ethnicity and being interviewed in Spanish. Patients without health insurance who report a financial barrier to care are likely to pursue more dangerous non-prescription antimicrobials. This is a harm of the fragmented, expensive healthcare system that may drive increasing antimicrobial resistance and patient harm.