Artificial Intelligence for early detection of lung cancer in General Practitioners' clinical notes.

Background: The journey of more than 80% of patients diagnosed with lung cancer starts in general practice. About 75% of patients are diagnosed in an advanced stage (3 or 4), leading to more than 80% mortality within one year at present. The long-term data in general practitioners' records might contain hidden information that could be used for earlier case-finding of patients with cancer.