Patient Knowledge and Antibiotic Abuse: Evidence from an Audit Study in China

Working Paper: NBER ID: w16602

Authors: Janet Currie; Wanchuan Lin; Wei Zhang

Abstract: We ask how patient knowledge of appropriate antibiotic usage affects both physicians prescribing behavior and the physician-patient relationship. We conduct an audit study in which a pair of simulated patients with identical flu-like complaints visits the same physician. Simulated patient A is instructed to ask a question that showcases his/her knowledge of appropriate antibiotic use, whereas patient B is instructed to say nothing beyond describing his/her symptoms. We find that a patient's knowledge of appropriate antibiotics use reduces both antibiotic prescription rates and drug expenditures. Such knowledge also increases physicians' information provision about possible side effects, but has a negative impact on the quality of the physician-patient interactions.

Keywords: Antibiotics; Patient Knowledge; Physician Behavior; Audit Study; China

JEL Codes: I11; I12; I18


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Patient knowledge (I10)Antibiotic prescriptions (I11)
Patient knowledge (I10)Drug expenditures (H51)
Patient knowledge (I10)Information provision about side effects (I10)
Patient knowledge (I10)Quality of physician-patient interactions (I11)

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