To the Editor We read with interest the research conducted by Jemal and Fedewa1 on the low rate of lung cancer screening by low-dose computed tomography (LDCT), recommended by the US Preventive Services Task Force (USPSTF).2 The authors are to be congratulated for their well-conducted study. They reported no change in screening rates following publication of the USPSTF guideline, remaining to be very low in 2010 and 2015 (3.3%-3.9%).