Minnesota Heart Survey - Risk Factor Survey (MHS)

February 3, 2016 updated by: University of Minnesota

Study of Trends in Cardiovascular Risk Factors in an Urban Population.

To continue surveillance of cardiovascular disease risk factors in the seven-county area of Minneapolis-St. Paul.

Study Overview

Status

Completed

Conditions

Detailed Description

BACKGROUND:

Cardiovascular disease mortality rates, especially for myocardial infarction and stroke, have fallen markedly over the past several decades in all race, sex, and age groups in the United States. Between 1966 and 1986, the combined death rate for all cardiovascular diseases declined by 42 percent. In 1986, the death rate for coronary heart disease was 55 percent of what it had been in 1966, and cerebrovascular disease was 42 percent of what it had been in 1966. The decline is assumed to be related to several factors including improved medical care and risk factor modification for elevated blood lipids, cigarette smoking, and hypertension. The Minnesota Heart Survey provide trends (1970-2002) in coronary heart disease deaths out-of-hospital, in hospitalization rates, case fatality and survivorship for myocardial infarction and stroke in the metropolitan area.

DESIGN NARRATIVE:

Between 1979 and 1999, R01HL23727 supported mortality surveillance and morbidity surveillance. Beginning in FY 2000, R01HL65755 supports the morbidity and mortality surveillance and R01HL23727 supports the risk factor survey.

Mortality Surveillance: The mortality surveillance was a continuation of a surveillance study performed by the investigators since 1960 for the state of Minnesota. Mortality data for hypertension, stroke, coronary heart disease, and all cardiovascular renal disease were monitored for the Twin City metropolitan area with a total population of two million. Age, sex, area, location of death and cause-specific death rates were followed. Trends in cancer, diabetes, and other non-cardiovascular disease were examined. Case fatality rates, including one- and five-year survivorships were determined and related to coronary heart disease mortality trends.

Morbidity Surveillance: All discharges from the seven-county area hospitals with acute and chronic myocardial heart disease and stroke listed among the discharge diagnoses were recorded using Professional Standards Review Organization data tapes. A ten percent random sample of all recorded diagnoses were validated yearly by abstracting data from hospital records. Each year's validation sample of definite and probable cases of myocardial infarction and stroke formed a cohort to be followed for mortality for one year after the onset of the disease event. Individual hospitals and the Professional Standards Review Organization in the area provided data on the total numbers of coronary care unit admissions and coronary artery bypass operations for each year. Beginning in August 1988, a registry was established for all new incident cases of coronary heart disease at the University of Minnesota Hospital and the Ramsey County Hospital. In 1989, twelve hospitals were part of the myocardial infarction registry.

Risk Factor Surveillance: Population samples, aged 25-74 years, are recruited and measured for blood pressure, serum cholesterol, serum high density lipoprotein cholesterol, cigarette smoking, diet, physical activity, height, weight, health attitudes and beliefs, and coronary prone behavior. Surveys were completed in 1980-1982 and 1984-1985. The third survey conducted in 1990-1992 included the Willett Food Frequency Questionnaire and bioimpedance measurements. A nested case-control study using the 1980-1982 risk factor cohort examined the baseline cardiovascular disease risk factor differences between coronary heart disease in cases and controls.

The study was renewed in the year 2000 under R01HL23727 to conduct a population survey of 4,000 adults, ages 25 to 84 in 2000-2002, to detect current trends in cardiovascular disease risk factors, including serum lipids, blood pressure, cigarette smoking prevalence, dietary fat intake, obesity, diabetes, physical inactivity, fibrinogen, and serum vitamin E. Cohort and ecological analyses will be used to link secular trends in risk factors to morbidity and mortality from coronary heart disease, congestive heart failure, and stroke. A total of 1,000 children and adolescents, ages 8-17, will also be surveyed using youth-specific measurement instruments where appropriate.

Study Type

Observational

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

8 years to 84 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

No eligibility criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Cohorts and Interventions

Group / Cohort
Observational, no interventions

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Cardiovascular risk factor trends
Time Frame: 26 years
26 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Minnesota

Collaborators

National Heart, Lung, and Blood Institute (NHLBI)

Investigators

  • Donna Arnett, University of Minnesota

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 1979

Primary Completion (Actual)

February 1, 2005

Study Completion (Actual)

February 1, 2005

Study Registration Dates

First Submitted

May 25, 2000

First Submitted That Met QC Criteria

May 25, 2000

First Posted (Estimate)

May 26, 2000

Study Record Updates

Last Update Posted (Estimate)

February 5, 2016

Last Update Submitted That Met QC Criteria

February 3, 2016

Last Verified

February 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1016
  • R01HL023727 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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