Nav: Home

Cardiovascular disease death rates decline, but risk factors still exact heavy toll

December 20, 2007

Cardiovascular disease (CVD) death rates are declining, but CVD is still the No. 1 cause of death in the United States, and risk factor control remains a challenge for many, according to the most recent data from the American Heart Association's Heart Disease and Stroke Statistics - 2008 Update. The Update will be available in the Dec. 17 online issue of Circulation: Journal of the American Heart Association at http://www.americanheart.org/statistics.

The Update provides statistics about cardiovascular diseases, risk factors, treatments, quality of care and costs. The American Heart Association does not generate the data, but synthesizes it from many sources and provides it online without charge for government policymakers, physicians, researchers, educators and the public, making the Update a unique national - and even international - resource.

Cardiovascular diseases include heart disease, stroke, high blood pressure, heart failure and several other conditions including arrhythmias, atrial fibrillation, cardiomyopathy and peripheral arterial disease. CVD has been the leading cause of death in the United States every year since 1900 except during the 1918 flu epidemic. In 2004, the most recent year for which final statistics were available for this report, the age-adjusted CVD death rate per 100,000 persons was 288.0, compared to 307.7 in 2003. CVD (the No. 1 overall cause of death) was listed as the underlying cause of death in 869,724 deaths, compared to 911,163 deaths in 2003. Cancer was the second-leading cause of death, responsible for 553,888 lives lost. Stroke, when considered separately from other cardiovascular diseases, was the nation's third-leading killer (150,074 deaths), followed by accidents (112,012). Coronary heart disease, even when considered separately from other cardiovascular diseases, was still by far the nation's single leading cause of death (451,326).

"These statistics make it clear that cardiovascular disease remains, by far, our greatest public health challenge," said Donald Lloyd-Jones, M.D., Sc.M., chair of the association's Statistics Committee, which, along with the association's Stroke Statistics Subcomittee, is responsible for the Update.

While CVD deaths appear to be decreasing, the prevalence of many related risk factors is holding steady or increasing. Overweight, in both adults and children, has been rising for several decades. Sixty-six percent of adults are overweight while 31.4 percent are obese. Seventeen percent of children and adolescents ages 12-19 are overweight, along with 17.5 percent of children ages 6-11, and 14 percent of children ages 2-5.

"Although we have made some substantial strides in understanding the causes of cardiovascular disease, the data in this publication show that we have a long way to go to capture people's attention and to implement the prevention and treatment programs we need," said Lloyd-Jones, an associate professor in the Department of Preventive Medicine at Northwestern University's Feinberg School of Medicine in Chicago.

Changing dietary habits appear to be fueling increased obesity, because many Americans are not consuming recommended levels of foods like fruits and vegetables. As cited in the Update, data from the Youth Risk Behavior Surveillance Study of the Centers for Disease Control and Prevention (CDC) shows that in 2005, among high school students, only 21.4 percent of males and 18.7 percent of females reported eating at least five daily servings of fruits and vegetables. A 2005 Behavioral Risk Factor Surveillance Study (CDC) shows that fewer than one in three U.S. adults consumes fruit two or more times per day, and only 27.2 percent eat vegetables three or more times per day.

Smoking, which raises the risk of coronary heart disease death two to three times, remains highly prevalent. More than 46 million U.S. adults are daily smokers, and about 4,000 people ages 12-17 begin smoking every day.

The 2008 Update includes enhanced content for diabetes, a major cardiovascular risk factor, and end-stage renal disease and chronic kidney disease, which are commonly associated with diabetes and high blood pressure. Based on 1984-2004 National Health and Nutrition Examination Studies, it is projected that diabetes prevalence will more than double from 2005 to 2050. (Diabetes is defined as a fasting blood glucose level of 126 milligrams per deciliter or more.) About a third of the more than 15.1 million people with diabetes don't know they have it, and another 59.7 million have prediabetes (a fasting blood glucose level between 100 and 125 milligrams per deciliter), which greatly increases the risk of diabetes. The Update cites a 2007 report in Circulation: Journal of the American Heart Association, which suggests that the increasing prevalence of diabetes is leading to an increasing prevalence of CVD morbidity and mortality. (At least 65 percent of people with diabetes die from some type of cardiovascular disease.) Kidney disease is also on the rise. A projection by the U.S. Renal Data System says the number of people requiring treatment for kidney failure could increase 60 percent between 2001 and 2010. End-stage renal disease is most often caused by diabetes and/or high blood pressure.

The Update includes continued good news on improvements in the quality of care CVD patients receive at the nation's hospitals. According to the ADHERE study, among 159,168 patients treated for heart failure at 285 U.S. hospitals in 2002-04, there were improvements in clinical outcomes and in the number of patients receiving counseling at discharge, smoking cessation counseling, prescription of beta blockers, and assessment of left ventricular function.

The American Heart Association also reports continued improvements in quality of care, through its Get With The Guidelinessm (GWTG) program, which works with participating hospitals to increase adherence to treatment guidelines for patients with coronary artery disease (CAD), stroke and heart failure:
  • Using data from 58,847 patients who were admitted to 315 participating hospitals in 2006, the GWTG-CAD program reports the composite quality of care based on several performance measures was 89 percent, up from 86.3 percent in 2005. Performance measures include whether patients received aspirin, cholesterol-lowering drugs and other medications when they were discharged from the hospital and whether they were counseled to quit smoking.
  • From 2006 data of 141,449 patients at 778 hospitals, the GWTG-Stroke program reports a composite quality of care score of 90 percent, up from 88 percent in 2005. Key performance measures for stroke include the administration of clot-busting therapy in eligible patients, proper anti-clotting medications during the hospital stay and, upon discharge, cholesterol-lowering therapy and counsel to quit smoking.
  • GWTG-Heart Failure reports a composite quality of care score of 88 percent based on data from 35,576 patients in 231 hospitals in 2006, up from a 2005 composite score of 82.5. Performance measures include giving patients a complete set of discharge instructions, measuring left-ventricular function, counsel to quit smoking, and release from the hospital with proper medications.

While the quality of hospital care for patients with cardiovascular disease appears to be improving, the cost associated with cardiovascular disease will rise to a projected $448.5 billion in 2008, an increase of more than $16 billion over projections for 2007.

"This Update contains a wealth of information that is useful for researchers, the media, policymakers, clinicians and the general public alike," said Lloyd-Jones. "We hope it will raise awareness that cardiovascular disease, the leading cause of disability and death in the United States, is highly preventable and very treatable - if people make themselves aware of their risks and the potential approaches."
-end-
Other writing group members are: Wayne Rosamond, Ph.D.,; Katherine Flegal, Ph.D.; Karen Furie, M.D.; Alan Go, M.D.; Kurt Greenlund, Ph.D.; Nancy Haase; Susan M. Hailpern, Dr.P.H., M.S.; Michael Ho, M.D., Ph.D.; Virginia Howard, M.S.P.H.; Bret Kissela, M.D.; Steven Kittner, M.D.; Mary McDermott, M.D.; James Meigs, M.D.; Claudia Moy, Ph.D.; Graham Nichol, M.D.; Christopher O'Donnell, M.D., M.P.H.; Veronique Roger, M.D.; Paul Sorlie, Ph.D.; Julia Steinberger, M.D., M.S.C.; Thomas Thom; Matt Wilson, M.D.; Yuling Hong, M.D., Ph.D.

American Heart Association

Related Diabetes Articles:

Maternal gestational diabetes linked to diabetes in children
Children and youth of mothers who had gestational diabetes during pregnancy are at increased risk of diabetes themselves, according to new research published in CMAJ (Canadian Medical Association Journal).
Two diabetes medications don't slow progression of type 2 diabetes in youth
In youth with impaired glucose tolerance or recent-onset type 2 diabetes, neither initial treatment with long-acting insulin followed by the drug metformin, nor metformin alone preserved the body's ability to make insulin, according to results published online June 25 in Diabetes Care.
People with diabetes visit the dentist less frequently despite link between diabetes, oral health
Adults with diabetes are less likely to visit the dentist than people with prediabetes or without diabetes, finds a new study led by researchers at NYU Rory Meyers College of Nursing and East Carolina University's Brody School of Medicine.
Diabetes, but not diabetes drug, linked to poor pregnancy outcomes
New research indicates that pregnant women with pre-gestational diabetes who take metformin are at a higher risk for adverse pregnancy outcomes -- such as major birth defects and pregnancy loss -- than the general population, but their increased risk is not due to metformin but diabetes.
New oral diabetes drug shows promise in phase 3 trial for patients with type 1 diabetes
A University of Colorado Anschutz Medical Campus study finds sotagliflozin helps control glucose and reduces the need for insulin in patients with type 1 diabetes.
More Diabetes News and Diabetes Current Events

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Erasing The Stigma
Many of us either cope with mental illness or know someone who does. But we still have a hard time talking about it. This hour, TED speakers explore ways to push past — and even erase — the stigma. Guests include musician and comedian Jordan Raskopoulos, neuroscientist and psychiatrist Thomas Insel, psychiatrist Dixon Chibanda, anxiety and depression researcher Olivia Remes, and entrepreneur Sangu Delle.
Now Playing: Science for the People

#537 Science Journalism, Hold the Hype
Everyone's seen a piece of science getting over-exaggerated in the media. Most people would be quick to blame journalists and big media for getting in wrong. In many cases, you'd be right. But there's other sources of hype in science journalism. and one of them can be found in the humble, and little-known press release. We're talking with Chris Chambers about doing science about science journalism, and where the hype creeps in. Related links: The association between exaggeration in health related science news and academic press releases: retrospective observational study Claims of causality in health news: a randomised trial This...