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Heart Disease Deaths Fall, As Obesity And Diabetes Increase, Experts Find

Date:
June 11, 2007
Source:
University of Liverpool
Summary:
Epidemiologists have found that approximately half the recent fall in coronary heart disease deaths in the US is due to positive life style changes and a further half to medical therapies.

Epidemiologists at the University of Liverpool and the Heart of Mersey have found that approximately half the recent fall in coronary heart disease deaths in the US is due to positive life style changes and a further half to medical therapies.

Epidemiologists at the University of Liverpool and the Heart of Mersey have found that approximately half the recent fall in coronary heart disease deaths in the US is due to positive life style changes and a further half to medical therapies.

The team found that a decrease in smoking, cholesterol, blood pressure and physical inactivity contributed to the fall in deaths from coronary heart disease, yet this decrease could have been substantially more had it not been for the increases in obesity and diabetes cases.

Coronary heart disease (CHD) death rates in the US almost halved between 1980 and 2000. To understand how this fall occurred scientists combined information on medical treatments with national changes in the levels of major risk factors, such as smoking and high cholesterol. The UK has seen similar falls in heart disease, but this fall is mainly attributed to healthier diets rather than medication.

From 1980 to 2000, the US death rates for CHD fell from 543 to 267 per 100,000 population among men and from 263 to 134 per 100,000 population among women. Overall there were 341, 745 fewer CHD deaths in 2000 than in 1980.

The team found that this decrease was attributed to reductions in risk factors such as total cholesterol, systolic blood pressure, smoking and physical inactivity. However, they found that this reduction could have been 15% more had it not been for an increase in obesity and diabetes. Approximately half the fall in CHD deaths was also attributed to medical treatments, including medications for heart failure and emergency treatments for heart attacks and angina.

Professor Simon Capewell, from the University of Liverpool's Division of Public Health and Trustee at CHD prevention charity, Heart of Mersey, said: "Using a sophisticated computer model called IMPACT we were able to combine and analyse data on the uptake and effectiveness of specific cardiac treatments and changes in risk factors among adults aged 25 to 84 years in the US. Data included results from trials, official statistics and national surveys.

"We found that CHD death rates halved, and 47% of the fall was attributed to medical treatments and approximately 44% to changes in risk factors. Prevalence of smoking, for example had fallen by 12%. Decreases in physical inactivity however, were offset by increases in body mass index and diabetes."

Robin Ireland, Chief Executive at Heart of Mersey, added: "We have recently seen similar falls in heart disease here in the UK. These changes mainly reflect healthier diets, not tablets. However the increase in obesity and diabetes are a wakeup call. They reflect the increasing consumption of large helpings of junk food. We need legislation to encourage food manufacturers and supermarkets to provide healthier food options."


Story Source:

The above story is based on materials provided by University of Liverpool. Note: Materials may be edited for content and length.


Cite This Page:

University of Liverpool. "Heart Disease Deaths Fall, As Obesity And Diabetes Increase, Experts Find." ScienceDaily. ScienceDaily, 11 June 2007. <www.sciencedaily.com/releases/2007/06/070607112858.htm>.
University of Liverpool. (2007, June 11). Heart Disease Deaths Fall, As Obesity And Diabetes Increase, Experts Find. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2007/06/070607112858.htm
University of Liverpool. "Heart Disease Deaths Fall, As Obesity And Diabetes Increase, Experts Find." ScienceDaily. www.sciencedaily.com/releases/2007/06/070607112858.htm (accessed July 24, 2014).

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