A new government study suggests U.S. teen smoking rates reached an all-time low this year.一项新的政府研究表明，美国青少年吸烟率今年达到了历史最低水平。
The study was a survey of American youth carried out by the U.S. Centers for Disease Control and Prevention (CDC).这项研究是美国疾病控制和预防中心（CDC）对美国青年进行的一项调查。
The survey involved middle school students – which includes grades six through eight – and high school students in grades nine through 12.该调查涉及中学生（包括六年级至八年级）和九年级至十二年级的高中生。
Nearly 30,000 students from 283 U.S. schools took part in the effort, which was carried out from January to May.来自283所美国学校的近3万名学生参加了这项工作，该工作于1月至5月进行。
An estimated 33 percent of youth took part in the voluntary survey.估计有33%的年轻人参加了自愿调查。
The study showed a 20 percent drop in the number of middle and high school students who said they recently used at least one tobacco product.研究显示，最近至少使用过一种烟草制品的中学生和高中生人数下降了20%。
These include cigarettes, electronic cigarettes, nicotine patches and hookahs.其中包括香烟、电子烟、尼古丁贴片和水烟袋。
That number decreased from 2.8 million last year to 2.25 million this year.这一数字从去年的280万下降到今年的225万。
The result suggested the change was the lowest usage rate of those products since the CDC survey began in 1999.结果表明，这一变化是自1999年CDC调查开始以来这些产品使用率的最低变化。
The Associated Press (AP) reports the drop is largely explained by another recent government survey showing美联社（AP）报道称，这一下降主要是由于最近的另一项政府调查显示，
e-cigarette use among U.S. youth in 2024 fell to its lowest level in 10 years.2024年美国青少年的电子烟使用率降至10年来的最低水平。
The youth e-cigarette rate fell to under six percent this year, a drop of 7.7 percent over last year.今年青少年电子烟使用率降至6%以下，比去年下降7.7%。
That was the lowest rate at any time during the past 10 years.这是过去10年来的最低水平。
Government records show e-cigarettes are the most commonly used tobacco products among teens.政府记录显示，电子烟是青少年最常用的烟草产品。
The second most common is the nicotine patch.第二常见的是尼古丁贴片。
In 1999, nearly 30 percent of American high school students smoked.1999年，近30%的美国高中生吸烟。
In 2024, it was just 1.7 percent.2024年，这一比例仅为1.7%。
Currently, the share of middle school students who smoke is also at its lowest rate.目前，中学生吸烟率也处于最低水平。
Recent use of hookahs also dropped, from 1.1 to 0.7 percent.最近水烟的使用量也有所下降，从1.1%下降到0.7%。
CDC officials said the decreases are linked to several measures.CDC官员表示，这种下降与几项措施有关。
These include product cost increases, public health education campaigns,这些措施包括产品成本上涨、公共卫生教育活动、
age restrictions and more aggressive enforcement actions against makers and sellers to children.年龄限制以及对儿童制造商和销售商采取更严厉的执法行动。
Among high school students, use of any tobacco product dropped from 13 to 10 percent in 2024 while e-cigarette use fell from 10 to eight percent.2024年，高中生中任何烟草产品的使用率从13%下降到10%，而电子烟的使用率从10%下降到8%。
The survey showed there was no change reported for middle school students who generally vape or smoke less than older children.调查显示，中学生电子烟或吸烟的次数通常低于年龄较大的孩子，但情况没有变化。
The study found that tobacco use among girls and Hispanic students fell.研究发现，女孩和西班牙裔学生的烟草使用率有所下降。
But it rose among American Indian and Alaska Native students.但在美洲印第安人和阿拉斯加原住民学生中，这一比例有所上升。
The survey also showed the current use of nicotine patches increased among white youth.调查还显示，目前白人青年中尼古丁贴片的使用有所增加。
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