Physician Effects in Antibiotic Prescribing: Evidence from Physician Exits

Shan Huang and Hannes Ullrich

No 1958, Discussion Papers of DIW Berlin from DIW Berlin, German Institute for Economic Research

Abstract: Human antibiotic consumption is considered the main driver of antibiotic resistance. Reducing human antibiotic consumption without compromising health care quality poses one of the most important global health policy challenges. A crucial condition for designing effective policies is to identify who drives antibiotic treatment decisions, physicians or patient demand. We measure the causal effect of physician practice style on antibiotic intake and health outcomes exploiting variation in patient-physician relations due to physician exits in general practice in Denmark. We estimate that physician practice style accounts for 53 to 56 percent of between-clinic differences in all antibiotic consumption, and for 74 to 81 percent in the consumption of second-line antibiotic drugs. We find little evidence that low prescribing styles adversely affect health outcomes measured as preventable hospitalizations due to infections. Our findings suggest that policies to curb antibiotic resistance are most effective when aimed at improving physician decision-making, in particular when they target high prescribers. High prescribing practice styles are positively associated with physician age and negatively with staff size and the availability of diagnostic tools, suggesting that improvements in the quality of diagnostic information is an important path to improved decisions.

Keywords: antibiotic prescribing; practice styles; general practitioners (search for similar items in EconPapers)
JEL-codes: I11 I12 J44 (search for similar items in EconPapers)
Pages: 60 p.
Date: 2021
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Working Paper: Physician Effects in Antibiotic Prescribing: Evidence from Physician Exits (2021)
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