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Chapter Nine
Life Flow One
The Solution For Heart Disease

by
Karl Loren

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Correlation of rates of coronary artery bypass surgery, angioplasty, and cardiac catheterization in 305 large communities for persons age 65 and older.

NLM database Document

Record 1 from database: MEDLINE

Title

Correlation of rates of coronary artery bypass surgery, angioplasty, and cardiac catheterization in 305 large communities for persons age 65 and older.

Author

Kuhn EM; Hartz AJ; Baras M

Address

Medical College of Wisconsin, Milwaukee 53226, USA.

Source

Health Serv Res, 1995 Aug, 30:3, 425-36

Abstract

OBJECTIVE. The rate of coronary artery bypass surgery (CABG) has been shown to vary greatly across geographic regions. This study examined whether these rates were associated with the rate of coronary artery angioplasty (PTCA) and with other community characteristics. DATA SOURCES/STUDY SETTING. The health care financing administration provided the number of Medicare hospitalizations in 1988 for conditions and procedures related to coronary artery disease. Information on physicians and hospitals was obtained from the Area Resource File, and the number of persons in each age, sex, and race category was obtained from US. census data. STATISTICAL METHODS. Age-and sex-adjusted hospitalization rates based on the patient's zip code of residence were calculated at the level of the Metropolitan Statistical Area (MSA) for white patients age 65 or older. Rates were obtained for 305 MSAs for CABG, PTCA, cardiac catheterization, angina, and myocardial infarction. PRINCIPAL FINDINGS. The rate of cardiac catheterization had a correlation of .72 with the CABG rate and .64 with the PTCA rate. The correlation of the PTCA and CABG rates with each other was .49. This correlation was not charged by adjusting for the rates of hospitalization for angina or myocardial infection, but it was reduced to only .05 (ns) after adjusting for the rate of cardiac catheterization. The rates of all three procedures had rank correlations of about .15 with the density of thoracic surgeons and about .30 with the density of hospitals with cardiac catheterization and open heart surgery units. CONCLUSIONS. Community CABG and PTCA rates tend to move in the same direction due to community factors that also affect the rates of cardiac catheterization. These community factors do not appear to include the rate of coronary artery disease, but may include resources or attitudes toward aggressive treatment of coronary artery disease.

Language of Publication

English

Unique Identifier

95377948

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MeSH Heading (Major)

Angioplasty, Transluminal, Percutaneous Coronary|SN/*UT; Coronary Artery Bypass|SN/*UT; Heart Catheterization|SN/*UT

MeSH Heading

Aged; Aged, 80 and over; Female; Hospitalization|SN; Human; Male; Medicare; Regression Analysis; Small-Area Analysis; Statistics, Nonparametric; United States|EP; United States Health Care Financing Administration

Publication Type

JOURNAL ARTICLE

ISSN

0017-9124

Country of Publication

UNITED STATES

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