After working overtime to catch up to life in the West, China now faces a whole new problem: the world’s biggest diabetes epidemic.

One in 10 Chinese adults already have the disease and another 16 percent are on the verge of developing it, according to a new study. The finding nearly equals the U.S. rate of 11 percent and surpasses other Western nations, including Germany and Canada.

The survey results, published today in the New England Journal of Medicine, found much higher rates of diabetes than previous studies, largely because of more rigorous testing measures. With 92 million diabetics, China is now home to the most cases worldwide, overtaking India.

“The change is happening very rapidly both in terms of their economy and in terms of their health effects,” said David Whiting, an epidemiologist at the International Diabetes Federation, who was not involved in the study. “The rate of increase is much faster than we’ve seen in Europe and in the U.S.”

Chronic ailments, such as high blood pressure and heart disease, have been steadily climbing in rapidly developing countries like China, where many people are moving out of farms and into cities where they have more sedentary lifestyles.

Greater wealth has led to sweeping diet changes, including eating heavily salted foods, fatty meats and sugary snacks. That has boosted obesity rates, a major risk factor for Type 2 diabetes, which accounts for 90 percent to 95 percent of all diabetes cases among adults.

“As people eat more high-calorie and processed foods combined with less exercise, we see an increase of diabetes patients,” said Huang Jun, a cardiovascular professor at the Jiangsu People’s Hospital in Nanjing, who did not participate in the study.

“Whereas 20 years ago, people took naps during the work week, people are now faced with the stress of making more money to support a family and a buy a house,” Huang said.

More than half of the people with diabetes didn’t know they had it, the study found.