Lung cancer is the most preventable and leading cause of cancer deaths in the United States, with about 155 870 deaths each year.¹ In December 2013, the United States Preventive Services Task Force (USPSTF) recommended annual screening for lung cancer with low-dose computed tomography (LDCT) for asymptomatic persons aged 55 to 80 years who have a 30 pack or more per year smoking history and currently smoke or have quit within the past 15 years.² According to the 2010 National Health Interview Survey (NHIS), only 2% to 4% of high-risk smokers received LDCT for lung cancer screening in the previous year.³ In this study, we examined whether LDCT screening has increased following the USPSTF recommendation.

在美国，肺癌是最可预防的癌症死亡原因，每年约有155,870例死亡。¹ 2013年12月，美国预防服务工作队（USPSTF）建议对低剂量计算机断层扫描（LDCT）进行年度筛查，以筛查年龄在55至80岁，无烟史且每年吸烟30包或以上的无症状人群。目前吸烟或过去15年内已戒烟。²根据2010年国家健康访问调查（NHIS），在前一年中只有2％至4％的高风险吸烟者接受了LDCT进行肺癌筛查。³在这项研究中，我们研究了在USPSTF建议之后LDCT筛查是否增加。