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Study: Out-of-pocket health costs tied to antimicrobial resistance

July 14, 2015

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Via Stanford Medicine News:


Antimicrobial resistance is a growing, global public health challenge that could undo decades of progress in declining morbidity and mortality from infectious diseases.

The high out-of-pocket costs for antimicrobial drugs in many developing countries is leading to an increase in drug-resistant pathogens, according to a study by Stanford University researchers.

Many government-run public health systems in developing countries have instituted copayments for visits to clinics and prescription drugs. However, the study’s authors found evidence to suggest that such policies are associated with increased antimicrobial resistance, likely because high out-of-pocket costs have prompted low-income patients to turn to the black market or informal clinics for antibiotic and antiparasitic drugs.

The quality of drugs of the unlicensed drugs is often poor. In addition,  caregivers at such clinics may prescribe antimicrobials excessively and inappropriately, as well as provide inaccurate course and dose instructions, the researchers said. If patients don’t take the proper dose of a drug, or take one that’s been improperly manufactured, microbes can more easily evolve resistance to it.

“Understanding the drivers of antibiotic resistance in low- to middle-income countries is important for wealthier nations because antibiotic-resistant pathogens, similar to other communicable diseases, do not respect national boundaries,” said Marcella Alsan, MD, PhD, MPH, the lead author of the study, which was published July 9 in TheLancet Infectious Disease.

Alsan is an assistant professor of medicine at Stanford, an investigator at the Veterans Affairs Palo Alto Health Care System and a core faculty member at the Center for Health Policy/Center for Primary Care and Outcomes Research.

“Out-of-pocket health expenditures are a major source of health-care financing in the developing world,” said Jay Bhattacharya, MD, PhD, senior author of the study and a professor of medicine, a senior fellow at the Freeman Spogli Institute for International Studies and another core faculty member at CHP/PCOR.


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