Arendse KD, Walter FM, Pilling M, et al. - Researchers undertook this retrospective cohort investigation to assess time to chest X-ray among symptomatic patients in British general practice prior to lung cancer diagnosis, as well as to determine demographical variation. They analyzed lung cancer patients who presented symptomatically in general practice in the year prediagnosis and who underwent a prediagnostic chest X-ray. Experts ascertained time from presentation to chest X-ray (presentation–test interval), and they grouped intervals considering national guideline recommendations as concordant (≤ 14 days) or non-concordant (> 14 days). Among 2,102 participants, testing within the national guidelines-recommended timeframe was done in only 35% of the overall symptomatic primary care patients who had chest X-ray prior to lung cancer diagnosis. Longer intervals were reported for patients who smoke, older patients, and females.