Overweight or obese can take years off the coast of your life, even if you do not, a heart disease or cancer have, according to a new study nearly 1.5 million people.
It seems obvious that too much emphasis may pose health risks and help, an early death. In recent years however, some studies have shown that obesity has no effect on the mortality and may in fact reduce the risk of death at an early age.
The conclusions and the size of the new study by researchers at the National Cancer Institute published in the New England Journal of medicine, should contact the debate on the relationship between obesity and the risk of premature death, said Ali Mokdad, PhD., Professor of global health at the University of Washington in Seattle.
"I hope that we on this calm and concentration, what we do, to healthy and longer life, must to help people", said Mokdad, obesity, and mortality, but was not involved in the investigations.
The study's authors, under the direction of epidemiologist cancer Amy Berrington, PhD., 19 previous studies, 1.46 million men grouped data white and women at the age of 19 to 84.
The link between weight and mortality was hard to see because of the stroke - have included many studies on the subject of smokers and people with heart disease, cancer or a history associated with obesity and premature death. NULL in obesity, Berrington and other excluded smokers (current and former) and the people who was diagnosed with these three diseases. (Overweight and obesity have height and weight based on body mass index or BMI, a simple report.)
A total of 160 087 people died during the study, which took 10 years on average.
Compared to women of normal weight (BMI of 22.5-25), the overweight were women rather die during the study of 13%. Moderately overweight (BMI 30-34) and heavily overweight (BMI 35-39) women were 44% and 88% more morbidly obese women die, or during (BMI 40 +) were 2.5 times more likely to die. The pattern was for men.
People were not enough weight rather than normal weight people die. However, the researchers say that this probably already existing but not disease found in very thin people, not a serious health problem which is caused by insufficient weight itself.
"Lower mortality risks for people with a BMI of 20 to 25, were," explains Berrington. The results clearly show that it adds that obesity is a risk factor for early death. "It is a small but statistically significant increased risk."
Although the study contain only white, said the findings to persons of other races, may apply Mokdad, pointing out that such as such as age, physical activity, consumption of alcohol, education and marital status included a number of health and socio-economic factors, researchers.
Berrington says that more research will be required to confirm that the pattern in the study observed also in the Asian, African-Americans and other ethnic groups.
Still, she said, should the study - with others, such as it - to the theory that the overweight or obese to reassure no increased risk of early death. "" Now, we have a very large body there is evidence to support a link between obesity and risk for increased mortality, "she said." "."