‘No clear rationale’ for 45% of Medicaid patients’ antibiotic prescriptions
2020 FEB 18 (NewsRx) -- By a
Using Medicaid insurance claims between 2004 and 2013, the study evaluated 298 million antibiotic prescriptions filled by 53 million patients on Medicaid, the largest source of health care coverage in the
Prior to this study, antibiotic prescribing for Medicaid patients in the
The researchers used Medicaid data to determine whether patients made a clinic visit in the seven days prior to filling the antibiotic prescription and, when there was a visit, they checked whether the billing diagnosis specified an infection as the cause for the visit.
Antibiotics treat bacterial infections, and are used to prevent infection in organ transplants, surgery and the treatment of cancer. However, they also expose patients to adverse drug events like nausea, diarrhea - including the life-threatening Clostridioides difficile, or “C. diff” - rashes, yeast infections and life-threatening allergic reactions.
“Indiscriminate use of antibiotics is increasing the prevalence of antibiotic-resistant bacteria and rendering them ineffective,” said senior study author Dr.
“It’s concerning that nearly half of antibiotics are prescribed without a visit or without a clear rationale,” Linder said. “We are not keeping track of and do not have a system to ensure high-quality antibiotic prescribing in the U.S.”
The study raises questions about the effectiveness of efforts to curb inappropriate antibiotic prescribing. Clinical policies are in place to help decrease the rate of antibiotic prescribing in the
Ambulatory antibiotic stewardship policies, which focus on prescribing decisions made when patients tell doctors about possible infections, don’t capture antibiotics prescribed outside of a doctor visit or without clear indications for use. The study found current ambulatory antibiotic stewardship policies missed 45% of antibiotic prescriptions.
“If we’re thinking about how to improve antibiotic use, we need to understand the context in which antibiotics are being prescribed,” said lead author Dr.
The study authors acknowledge a critical question remains: What occurred clinically in the many cases when antibiotic prescriptions were dispensed without an office visit?
“Since our analyses were based on claims data, we don’t have access to medical records to determine what interactions took place between patients and prescribing clinicians,” Fischer said. “We assume that most of these prescriptions were associated with a telephone interaction, although some communication may have occurred over email, via web portals or in informal, uncaptured visits. Most of these encounters would be blind spots for the interventions designed to improve antibiotic use.”
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