Today's News / Health

CDC: up to 40 percent of U.S. deaths each year are preventable

-92,000 from heart disease alone

Workers Memorial Day 2012Each year, nearly 900,000 Americans die prematurely from the five leading causes of death – yet 20 percent to 40 percent of the deaths from each cause could be prevented, according to a study from the Centers for Disease Control and Prevention (CDC).

The five leading causes of death in the United States are heart disease, cancer, chronic lower respiratory diseases, stroke, and unintentional injuries. Together they accounted for 63 percent of all U.S. deaths in 2010, with rates for each cause varying greatly from state to state. The report, in this week’s issue of CDC’s weekly journal, Morbidity and Mortality Weekly Report, analyzed premature deaths (before age 80) from each cause for each state from 2008 to 2010. The authors then calculated the number of deaths from each cause that would have been prevented if all states had same death rate as the states with the lowest rates.

Longer lives possible

The study suggests that, if all states had the lowest death rate observed for each cause, it would be possible to prevent:

  • 34 percent of premature deaths from heart diseases, prolonging about 92,000 lives
  • 21 percent of premature cancer deaths, prolonging about 84,500 lives
  • 39 percent of premature deaths from chronic lower respiratory diseases, prolonging about 29,000 lives
  • 33 percent of premature stroke deaths, prolonging about 17,000 lives
  • 39 percent of premature deaths from unintentional injuries, prolonging about 37,000 lives

“As a doctor, it is heartbreaking to lose just one patient to a preventable disease or injury – and it is that much more poignant as the director of the nation’s public health agency to know that far more than a hundred thousand deaths each year are preventable,” said Tom Frieden, MD, MPH. “With programs such as the CDC’s Million Hearts initiative, we are working hard to prevent many of these premature deaths.”

The numbers of preventable deaths from each cause cannot be added together to get an overall total, the authors note. That’s because prevention of some premature deaths may push people to different causes of death. For example, a person who avoids early death from heart disease still may die prematurely from another preventable cause, such as an unintentional injury.

What's behind it

Modifiable risk factors are largely responsible for each of the leading causes of death:

Heart disease risks include tobacco use, high blood pressure, high cholesterol, type 2 diabetes, poor diet, overweight, and lack of physical activity.

Cancer risks include tobacco use, poor diet, lack of physical activity, overweight, sun exposure, certain hormones, alcohol, some viruses and bacteria, ionizing radiation, and certain chemicals and other substances.

Chronic respiratory disease risks include tobacco smoke, second-hand smoke exposure, other indoor air pollutants, outdoor air pollutants, allergens, and exposure to occupational agents.

Stroke risks include high blood pressure, high cholesterol, heart disease, diabetes, overweight, previous stroke, tobacco use, alcohol use, and lack of physical activity.

Unintentional injury risks include lack of seatbelt use, lack of motorcycle helmet use, unsafe consumer products, drug and alcohol use (including prescription drug misuse), exposure to occupational hazards, and unsafe home and community environments.

The changes that could be made

Many of these risks are avoidable by making changes in personal behaviors. Others are due to disparities due to the social, demographic, environmental, economic, and geographic attributes of the neighborhoods in which people live and work. The study authors note that if health disparities were eliminated, as called for in Healthy People 2020, all states would be closer to achieving the lowest possible death rates for the leading causes of death.

”We think that this report can help states set goals for preventing premature death from the conditions that account for the majority of deaths in the United States,” said Harold W. Jaffe, MD, the study’s senior author and CDC’s associate director for science. “Achieving these goals could prolong the lives of tens of thousands of Americans.”

Southeastern states had the highest number of preventable deaths for each of the five causes. The study authors suggest that states with higher rates can look to states with similar populations, but better outcomes, to see what they are doing differently to address leading causes of death.

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