PDA

View Full Version : CDC Study: Obesity death risk overstated


|Zach|
04-20-2005, 02:30 PM
http://www.cnn.com/2005/HEALTH/diet.fitness/04/20/obesity.deaths.ap/index.html

CHICAGO, Illinois (AP) -- Packing on the pounds is not nearly as deadly as the government thought, according to a new calculation from the CDC that found people who are modestly overweight actually have a lower risk of death than those of normal weight.

The Centers for Disease Control and Prevention reported that obesity accounts for 25,814 deaths a year in the United States. As recently as January, the CDC came up with an estimate 14 times higher: 365,000 deaths.

According to the new calculation, obesity ranks No. 7 instead of No. 2 among the nation's leading preventable causes of death.

The new analysis found that obesity -- being extremely overweight -- is indisputably lethal. But like several recent smaller studies, it found that people who are modestly overweight have a lower risk of death than those of normal weight.

Biostatistician Mary Grace Kovar, a consultant for the University of Chicago's National Opinion Research Center in Washington, said "normal" may be set too low for today's population. Also, Americans classified as overweight are eating better, exercising more and managing their blood pressure better than they used to, she said.

The study -- an analysis of mortality rates and body-mass index, or BMI -- was published in Wednesday's Journal of the American Medical Association.

Last year, a CDC study listed the leading causes of preventable death in order as tobacco; poor diet and inactivity, leading to excess weight; alcohol; germs; toxins and pollutants; car crashes; guns; risky sexual behavior; and illicit drugs.

Using the new estimate, excess weight would drop behind car crashes and guns to seventh place -- a ranking the CDC is unwilling to make official, underscoring the controversy inside the agency over how to calculate the health effects of obesity.

Last year, the CDC issued a study that attributed 400,000 deaths a year to mostly weight-related causes and said excess weight would soon overtake tobacco as the top U.S. killer. After scientists inside and outside the agency questioned the figure, the CDC admitted making a calculation error and lowered its estimate three months ago to 365,000.

The new study attributes 111,909 deaths to obesity, but then subtracts the benefits of being modestly overweight, and arrives at the 25,814 figure.

CDC Director Dr. Julie Gerberding said because of the uncertainty in calculating the health effects of being overweight, the CDC is not going to use the new figure of 25,814 in its public awareness campaigns. And it is not going to scale back its fight against obesity.

"There's absolutely no question that obesity is a major public health concern of this country," she said. Gerberding said the CDC will work to improve methods for calculating the consequences of obesity.

CDC spokesman Tom Skinner said the agency will probably start using a range of estimates for obesity-linked deaths.

Dr. JoAnn Manson, chief of preventive medicine at Brigham and Women's Hospital in Boston, said she is not convinced the new estimate is right.

"I think it's likely there has been a weakening of the mortality effect due to improved treatments for obesity," she said. "But I think this magnitude is surprising and requires corroboration."

The analysis was led by Katherine Flegal, a senior research scientist with the CDC's National Center for Health Statistics. The study that had to be corrected was conducted by a different arm of the CDC, the Division of Adult and Community Health, and its authors included Gerberding.

One major reason for the far lower number in this latest study is that it used more recent data, researchers said.

"This analysis is far more sophisticated," said Kovar, who was not involved in the new study. "They are very careful and are not overstating their case."

A related study, also in Wednesday's JAMA, found that overweight Americans are healthier than ever because of better maintenance of blood pressure and cholesterol levels. Diabetes is on the rise among people in all weight categories, however.

Flegal said the two studies raise questions about what definitions to use for obesity and "where to draw the line." Under current government standards, a BMI, or weight-to-height measurement, of 25 or higher is overweight; 30 and above is obese.

In recent years, the government has spent millions of dollars fighting obesity and publicizing the message that two out of three American adults are overweight or obese, and at higher risk for heart disease, arthritis and diabetes.

jcroft
04-20-2005, 02:33 PM
Excelent news for fatties.

JimNasium
04-20-2005, 02:33 PM
It's hard to get hit by a car when you're sittin' on the couch eatin' tater chips.

|Zach|
04-20-2005, 02:35 PM
It's hard to get hit by a car when you're sittin' on the couch eatin' tater chips.
ROFL

Nzoner
04-20-2005, 02:36 PM
Cool,I'm headin to the Dairy Queen tonight.

HemiEd
04-20-2005, 02:52 PM
It's hard to get hit by a car when you're sittin' on the couch eatin' tater chips.

ROFL Damn!




Cool,I'm headin to the Dairy Queen tonight.

My thoughts exactly, I gave up Ice cream a while back and miss it! :)

tyton75
04-20-2005, 02:54 PM
woohooo!! I'm going to live forever!!!!!!!!!!!

ENDelt260
04-20-2005, 02:56 PM
people who are modestly overweight actually have a lower risk of death than those of normal weight.

I'm pretty sure there's a 100% mortality rate for both groups.

Barret
04-20-2005, 03:17 PM
Hey if I am inside sitting on the couch I cant be getting hit with those evil UV sun rays that cause cancer!!

Couch potatoes: 1
Skin Cancer: 0

jarjar
04-20-2005, 03:17 PM
To put that in perspective though, when was the last time you saw an obese old person? obese 65+ years?

BIG_DADDY
04-20-2005, 03:26 PM
To put that in perspective though, when was the last time you saw an obese old person? obese 65+ years?

ROFL

|Zach|
04-20-2005, 03:28 PM
To put that in perspective though, when was the last time you saw an obese old person? obese 65+ years?
I see a lot of huge old people. More so ladies it seems.

Kyle401
04-20-2005, 03:38 PM
The study -- an analysis of mortality rates and body-mass index, or BMI --

If this study was conducted based on BMI, then it has very little credibility IMO. People vary too much to for a simple formula based on height and weight to describe your healthy weight. Any guy who has ever done significant weight training will be overweight according to BMI charts/calculations. Since many people who lift are committed to their health, I am not in the least suprised that people classified as "overweight" by BMI are healthier than their "normal" counterparts.

At 6'2" 200 lbs I am "overweight" by BMI despite having around 12-13% body fat. Anything over 235 lbs is obese for 6'2".

Brock
04-20-2005, 03:39 PM
BMI is BS.

BIG_DADDY
04-20-2005, 03:43 PM
If this study was conducted based on BMI, then it has very little credibility IMO. People vary too much to for a simple formula based on height and weight to describe your healthy weight. Any guy who has ever done significant weight training will be overweight according to BMI charts/calculations. Since many people who lift are committed to their health, I am not in the least suprised that people classified as "overweight" by BMI are healthier than their "normal" counterparts.

At 6'2" 200 lbs I am "overweight" by BMI despite having around 12-13% body fat. Anything over 235 lbs is obese for 6'2".

Those charts are lame. I am 6'3" 220 and far from fat.

RaiderH8r
04-20-2005, 03:48 PM
I just think the sig line says it all for me....

Mr. Kotter
04-20-2005, 03:55 PM
PBJ PBJ PBJ

I think I'll celebrate with dinner at Red Lobster.....cheese sticka and buffalo wings as an appetizer, garlic butter slathered Cheese-biscuits, Lobster and Shrimp Pasta w/lots of butter, Baked potato with butter and sour cream, carmel-fudge cheesecake dessert. Bailey's Irish Cream Cocktail, alongside 8 or 9 Guinness beers. :thumb:






:Lin:

Mr. Kotter
04-20-2005, 03:56 PM
To put that in perspective though, when was the last time you saw an obese old person? obese 65+ years?

That's because once they retire, sex as exercise slims 'em down.

morphius
04-20-2005, 04:05 PM
BMI is BS.
That pretty much covers it.

ENDelt260
04-20-2005, 04:40 PM
That's because once they retire, sex as exercise slims 'em down.
Gah. Sex with old fat people.