美国儿童五分之一都是小胖子

Nearly 1 in 5 U.S. kids are obese, according to the latest national data.

根据最新的国家数据，近五分之一的美国儿童肥胖。

The news is disappointing, given that programs across the country have for years been trying to reduce childhood obesity, one expert said.

一位专家说，考虑到全国各地多年来一直在努力减少儿童肥胖，这一消息令人失望。

“We really were expecting and hoping to see the trends decrease,” said Dr. Tannaz Moin, a UCLA obesity researcher.

加州大学洛杉矶分校肥胖研究人员坦纳兹·莫恩博士说：“我们真的很期待并希望看到这种趋势有所下降。”。

Obesity — which means not merely overweight, but seriously overweight — is one of the nation’s leading public health problems. Adult obesity also has been trending upward, but childhood obesity is especially worrisome because it can put kids on track for problems like diabetes and heart disease, she said.

肥胖——这不仅意味着超重，而是意味着严重超重——是美国最主要的公共卫生问题之一。她说，成人肥胖虽然也呈上升趋势，但儿童肥胖尤其令人担忧，因为它会使儿童步入糖尿病和心脏病等问题的轨道。

The Centers for Disease Control and Prevention findings come from a gold-standard health survey that measures participants’ height and weight. The latest data come from surveys done in 2017 and 2018, when more than 2,800 U.S. children participated.

疾病控制和预防中心的调查结果来自一项黄金标准健康调查，该调查测量了参与者的身高和体重。最新数据来自2017年和2018年的调查，当时共有2800多名美国儿童参与。

It found 19.3% of kids ages 2 to 19 were obese. That’s up slightly from the 18.5% in the 2015-2016 national survey. The increase isn’t considered statistically significant, meaning there’s a mathematical chance the rates didn’t truly rise.

调查发现，2至19岁的儿童中有19.3%是肥胖儿童。这一比例略高于2015-2016年全国调查的18.5%。这一增长在统计学上并不显著，这意味着利率在数学上有可能没有真正上升。

But it follows an upward trend since 2005-2006, when 15.4% of U.S. kids were obese.

但自2005-2006年以来，肥胖率一直呈上升趋势，当时15.4%的美国儿童存在肥胖问题。

The percentage of kids who are severely obese remains at about 6%, where it’s been for several years, the CDC found.

美国疾病控制与预防中心发现，严重肥胖儿童的比例保持在6%左右，这一水平已经持续多年。

A range of factors contribute to childhood obesity, including eating a lot of processed foods and sugary beverages, and a lack of physical exercise.

导致儿童肥胖的因素有很多，包括食用大量加工食品和含糖饮料，以及缺乏体育锻炼。