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Iranian Journal of Public Health، جلد ۵۳، شماره ۱، صفحات ۲۲۸-۲۳۷
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عنوان انگلیسی Physician Induced Demand: The Empirical Evidence of Angiography for Suspected Coronary Artery Disease
چکیده انگلیسی مقاله Background: We aimed to investigate the existence of unnecessary demand for angiography and the factors affecting it to provide evidence for decision makers. Methods: This longitudinal panel study was conducted in public hospitals in Tehran, Iran by using 2458 patients' records that were undergoing angiography for suspected coronary artery disease 2013-2015. To modeling the physicians' behavior based on physician-induced demand (PID), the patients were classified as appropriate, uncertain, and inappropriate and then Hierarchical Linear Modeling (HLM) model besides the physician ethic index was developed and finally the existence of PID showed based on three scenarios. Results: Angiographies were performed inappropriately in 23.8% of 2458 patients as well 46.7% were uncertain, and 29.5% were appropriate. According to the HLM model, the physician-to-population ratio (δ0= -0.161) and the interaction variable coefficient are higher than zero and significant (δ1 = 253). The results of the physician ethic index showed that most physicians were at a moderate rate, meaning that their utility was a combination of both pecuniary and non-pecuniary profits (0│> εpδ│ <1). Considering the HLM model and the medical ethics index together has almost shown the condition of PID (the necessary condition δ1> 0 and the sufficient condition (1 ≤│εpδ│)( existed for about 26% of all studied physicians who had pure profit maximizer. Conclusion: To reduce induced demand and improve medical ethics adherence in cardiologist, policy makers should develop native guidelines, rules, and instructions besides policies related to education, and increasing patients' awareness.
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نویسندگان مقاله | Marita Mohammadshahi
Department of Health Economics, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran


| Sara Emamgholipour
Department of Health Management, Policy and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran


| Alireza Olyaeemanesh
Department of Health Economics, National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran


| Minoo Alipouri sakha
Department of Health Education and Promotion, Deputy of Health, Iran University of Medical Sciences, Tehran, Iran


| Ali Akbari sari
Department of Health Management, Policy and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran


| Shahrooz Yazdani
Department of Cardiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
نشانی اینترنتی https://ijph.tums.ac.ir/index.php/ijph/article/view/29400
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