Featured Research

from universities, journals, and other organizations

Study Finds Incidence Of Heart Attack Increases Amid Decrease In Cardiovascular-Related Deaths

Date:
September 24, 1998
Source:
University Of North Carolina At Chapel Hill
Summary:
An eight-year examination of cardiovascular disease trends around the United States finds that mortality from heart disease continued its decline, while the rate of new heart attacks has not changed and, in some groups, actually increased, according to researchers at the University of North Carolina at Chapel Hill.

CHAPEL HILL -- An eight-year examination of cardiovascular disease trends around the United States finds that mortality from heart disease continued its decline, while the rate of new heart attacks has not changed and, in some groups, actually increased, according to researchers at the University of North Carolina at Chapel Hill.

From 1987 to 1994, and consistent with a 30-year trend, the researchers observed significant annual decreases in mortality from coronary heart disease. There was, however, a stable or slightly increasing incidence of first-time hospitalization for myocardial infarction, or heart attack. A report on the research appears in the Sept. 24 issue of the New England Journal of Medicine.

"After 30 years of remarkable progress against coronary heart disease, our data suggest that while the rate of mortality continues to improve, the rate at which heart attacks occur in the population may no longer be decreasing and, in fact, might be going up in some," said Dr. Wayne D. Rosamond, assistant professor of epidemiology at the UNC-CH School of Public Health and lead author of the report. "We expected to see a continued decline in new cases, but we did not." The decline in mortality among residents of the four geographically and ethnically diverse communities studied -- Forsyth County, N.C.; Jackson, Miss.; Washington County, Md.; and the suburbs of Minneapolis -- may be due largely to improvements in the treatment and secondary prevention of myocardial infarction, the researchers concluded.

The health community, Rosamond said, has done a tremendous job in getting the message out to the public about the need to exercise and eat right, quit smoking and control blood pressure as methods to prevent heart disease. But, he added, "We now need to get that prevention message to those who haven't gotten it yet."

Additionally, Rosamond said, "There may also be other factors that contribute to heart disease that we haven't addressed because we don't know about them yet."

The largest average annual decrease in mortality due to coronary heart disease occurred among white men (-4.7 percent), followed by white women (-4.5 percent), black women (-4.1 percent) and black men (-2.5 percent), the public health researchers found.

Overall, according to their findings, in-hospital mortality from coronary heart disease fell by 5.1 percent per year, whereas out-of-hospital mortality declined by 3.6 percent per year. There was no evidence of a decline in the incidence of hospitalization for a first myocardial infarction among either men or women; in fact, such hospital admissions increased by 7.4 percent per year among black women and 2.9 percent per year among black men. Rates of recurrent myocardial infarction decreased and survival after myocardial infarction improved.

In contrast to the flat trends in the rates of hospitalization for myocardial infarction, the annual rates of recurrent myocardial infarction showed a significant 18.8 percent decline among men (-2.6 percent per year) and a 14.5 percent decline among women (-1.9 percent per year.)

The researchers surveyed hospital admissions in the four communities, watching for myocardial infarction and in-hospital and out-of-hospital deaths due to coronary heart disease among 35- to 74-year-old residents. An estimated 11,869 hospitalizations for myocardial infarction and 3,407 fatal coronary events occurred between 1987 and 1994.

Mortality due to coronary heart disease -- across the four communities -- declined 28 percent for men and 31 percent for women over the eight-year period. The decline was evident among both blacks and whites.

Among men, 64 percent of all deaths due to coronary heart disease occurred outside the hospital, with essentially no change in this percentage between 1987 and 1994. About half of the deaths among women during this period occurred out-of-hospital, except in 1988 and 1994, when this proportion was about a third.

"The data show consistently over a period of years that the majority of people dying from heart attack do so before they reach a hospital," Rosamond said. "To see progress in that piece of the pie, we need to further focus on prevention." In addition to Rosamond, authors include Drs. Lloyd E. Chambless, Limin Clegg and Chin-Hua Wang, all of the UNC-CH School of Public Health's department of biostatistics; Dr. Aaron R. Folsom of the University of Minnesota in Minneapolis; Dr. Lawton S. Cooper of the National Heart, Lung and Blood Institute in Bethesda, Md.; Dr. David E. Conwill of the University of Mississippi Medical Center in Jackson; and Dr. Gerardo Heiss, also of the UNC-CH epidemiology department.

Besides UNC-CH, the following institutions also participated in the study: Wake Forest University in Winston-Salem; University of Mississippi Medical Center in Jackson; University of Minnesota in Minneapolis; and Johns Hopkins University in Baltimore.


Story Source:

The above story is based on materials provided by University Of North Carolina At Chapel Hill. Note: Materials may be edited for content and length.


Cite This Page:

University Of North Carolina At Chapel Hill. "Study Finds Incidence Of Heart Attack Increases Amid Decrease In Cardiovascular-Related Deaths." ScienceDaily. ScienceDaily, 24 September 1998. <www.sciencedaily.com/releases/1998/09/980924074915.htm>.
University Of North Carolina At Chapel Hill. (1998, September 24). Study Finds Incidence Of Heart Attack Increases Amid Decrease In Cardiovascular-Related Deaths. ScienceDaily. Retrieved August 31, 2014 from www.sciencedaily.com/releases/1998/09/980924074915.htm
University Of North Carolina At Chapel Hill. "Study Finds Incidence Of Heart Attack Increases Amid Decrease In Cardiovascular-Related Deaths." ScienceDaily. www.sciencedaily.com/releases/1998/09/980924074915.htm (accessed August 31, 2014).

Share This




More Health & Medicine News

Sunday, August 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

Reuters - US Online Video (Aug. 30, 2014) California lawmakers pass a bill requiring universities to adopt "affirmative consent" language in their definitions of consensual sex, part of a nationwide drive to curb sexual assault on campuses. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
3 Things To Know About The Ebola Outbreak's Progression

3 Things To Know About The Ebola Outbreak's Progression

Newsy (Aug. 29, 2014) Here are three things you need to know about the deadly Ebola outbreak's progression this week. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins