Annual Chest X-Rays Don't Improve Lung-Cancer Mortality

摘要

Annual chest X-ray screenings have no effect on lung-cancer mortality, according to a study published online Oct. 26 in the Journal of the American Medical Association. This major, randomized controlled trial involved 154,901 participants ages 55 to 74 from the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial. Roughly half were assigned to annual screenings, the other half to typical care from 1993 to 2001. The researchers also analyzed data from a subset of participants who were also in the National Lung Screening Trial, which compared chest X-rays with spiral CT screening.