M21 Are there any differences in cancer outcomes according to time between baseline chest X-ray and lung cancer diagnosis?

Introduction/objectives

The majority of patients are diagnosed with lung cancer following an abnormal chest X-ray (CXR) ordered in response to respiratory symptoms. However, CXR will miss some symptomatic lung cancers, and such patients may be expected to present with lung cancer in the months after a non-diagnostic CXR. Using information from a large dataset of patients presenting for self-request CXR (SR-CXR), we sought to determine...