Regional variations in medical expenditure and hospitalization days for heart attack patients in Japan

Evidence from the Tokai Acute Myocardial Study (TAMIS)

Haruko Noguchi, Satoshi Shimizutani, Yuichiro Masuda

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In Japan, the use of percutaneous transluminal coronary angioplasty (PTCA) for the treatment of acute myocardial infarction (AMI) is extraordinarily frequent, resulting in large medical expenditure. Using chart-based data and exploiting regional variations, we explore what factors explain the frequent use of PTCA, employing propensity score matching to estimate the average treatment effects on hospital expenditure and hospital days. We find that the probability of receiving PTCA is affected by the density of medical resources in a region. Moreover, expenditure is higher for treated patients while there are no significant differences in hospitalization days, implying that the frequent use of PTCA is economically motivated.

Original languageEnglish
Pages (from-to)123-144
Number of pages22
JournalInternational Journal of Health Care Finance and Economics
Volume8
Issue number2
DOIs
Publication statusPublished - 2008 Jun
Externally publishedYes

Fingerprint

heart attack
Coronary Balloon Angioplasty
Health Expenditures
regional difference
hospitalization
Japan
Hospitalization
expenditures
Myocardial Infarction
evidence
Propensity Score
resources
Regional variation
Medical expenditures
Attack
Expenditure
Therapeutics
Factors
Acute myocardial infarction
Average treatment effect

Keywords

  • Acute myocardial infarction (AMI)
  • Percutaneous transluminal coronary angioplasty (PTCA)
  • Propensity score model
  • Regional variations in health care in Japan
  • Tokai Acute Myocardial Infarction Study (TAMIS)

ASJC Scopus subject areas

  • Economics, Econometrics and Finance(all)
  • Health(social science)

Cite this

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abstract = "In Japan, the use of percutaneous transluminal coronary angioplasty (PTCA) for the treatment of acute myocardial infarction (AMI) is extraordinarily frequent, resulting in large medical expenditure. Using chart-based data and exploiting regional variations, we explore what factors explain the frequent use of PTCA, employing propensity score matching to estimate the average treatment effects on hospital expenditure and hospital days. We find that the probability of receiving PTCA is affected by the density of medical resources in a region. Moreover, expenditure is higher for treated patients while there are no significant differences in hospitalization days, implying that the frequent use of PTCA is economically motivated.",
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AU - Masuda, Yuichiro

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