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Showing posts with label Longer. Show all posts
Showing posts with label Longer. Show all posts

Tuesday, July 23, 2013

US No Longer the Most Obese Nation

Mexico has knocked the U.S. off its hefty pedestal to claim the title as the World’s Fattest Developed Nation, according to a new United Nations Food and Agricultural Organization?report.

The report found that 32.8 percent of Mexican adults are now obese. That’s a slightly chubbier obesity rate than the 31.8 percent listed for Americans.

Fat Forecast: 42 Percent of Americans Will Be Obese by 2030

These statistics don’t quite jibe with World Health Organization estimates, which, using different analysis techniques and time periods, put the level of obesity of Americans and Mexicans at 34 percent and 24 percent respectively. But there’s no doubt the two countries have a growing problem. ?A recent Organization for Economic Co-operation and Development report?found that, although the rise in obesity rates has ?slowed ?in many developed countries over the past three years, they increased by 4 to 5 percent in the U.S. and Mexico.

Mexico’s rampant obesity rates come as no shock to experts, who have long warned that the Latin American country is turning into a vast “Waist Land.”

GTY mexico obese nt 130709 16x9 608 Mexico Gains on America to Top Globesity List More than 30 percent of Mexicans are now obese. Credit: Ronaldo Schemidt/AFP/Getty Images.

“As more Mexicans move from rural to urban communities they become more sedentary and they eat a steady diet of unhealthy, highly caloric foods,” said Martin Binks, an obesity researcher who is a spokesman for the Obesity Society.

Binks said this is particularly true for less affluent Mexicans, who have limited budgets and little access to leaner fare such as fish, low fat grains and fresh fruits and vegetables. He said researchers are witnessing the same fattening process in Latinos, who move to the U.S. and live in urban, less affluent circumstances.

Obesity Is Big Business

The global shift from farming to a couch potato lifestyle now affects a frighteningly large portion of the world’s population. WHO statistics show that more than 1.4 billion adults around the globe, ages 20 and older, are overweight. Of these more than 200 million men and nearly 300 million women are obese. Nearly 65 percent of the world’s population lives in countries where being overweight or obese kills more people than being underweight.

More than ?20 percent of the world’s population is classified as obese, a condition the Centers for Disease Control and Prevention defines as a body mass index of greater than 30.

However, neither Mexico nor the U.S. comes close to winning the overall world’s heavyweight title. That distinction belongs to the tiny island of American Somoa, where a whopping 75 percent of citizens are obese, and an additional 20 percent are merely overweight. By 15 months of age, more than 40 percent of boys and 30 percent of girls from the island nation are already overweight or obese, a Brown University study found.

Many of the ?slimmest nations ?are located in Asia. Less than 1 percent of the population in Vietnam and Laos is obese. Indonesia, Korea and Japan also boast obesity rates of less than ?5 percent, though most experts agree that with increased industrialization, these numbers will probably climb.

“As Western culture permeates the globe, we see increases in obesity rates,” Binks said. “Our metabolic profile is not really well suited to an environment where physical activity is limited and highly caloric foods are so readily available.”


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Thursday, May 16, 2013

Breast Cancer Rates No Longer Declining

After a sharp decline in breast cancer rates between 2002 and 2003 among non-Hispanic white women in the US, overall breast cancer rates did not change significantly between 2003 and 2007. These results were published in Cancer Epidemiology, Biomarkers, & Prevention.

Between 2002 and 2003, breast cancer rates in non-Hispanic white women in the US dropped by 7%. The decrease was most apparent among women between the ages of 50 and 69 and for estrogen receptor-positive (ER+) breast cancers. Non-Hispanic black and Hispanic women did not experience a large decrease in breast cancer rates during this same time period.

Some of the decline in breast cancer rates among non-Hispanic white women was thought to be due to decreasing use of postmenopausal hormones after results from the Women’s Health Initiative (WHI) were published in 2002. The WHI reported that use of combined estrogen plus progestin was linked with an increased risk of breast cancer.

To explore trends in breast cancer rates after 2003, researchers collected information from a large US cancer registry (the Surveillance, Epidemiology, and End Results program). Another database (from the National Health Interview Survey) was used to evaluate trends in postmenopausal hormone use.???

Between 2003 and 2007, overall breast cancer rates did not change significantly among non-Hispanic white women, non-Hispanic black women, or Hispanic women.Use of postmenopausal hormones continued to decrease from 2005 to 2008, but to a lesser extent than it did between 2000 and 2005.

In summary, the decline in overall breast cancer rates that occurred among non-Hispanic white women between 2002 and 2003 did not continue after 2003. Overall breast cancer rates remained fairly stable between 2003 and 2007.

Reference: DeSantis C, Howlader N, Cronin KA et al. Breast cancer incidence rates in US women are no longer declining. Cancer Epidemiology, Biomarkers, & Prevention. Early online publication February 28, 2011.


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