Longitudinal study to assess impact of smoking at diagnosis and quitting on 1-year survival for people with non-small cell lung cancer

Objectives To update the prevalence of smoking in people as they were diagnosed with non-small cell lung cancer (NSCLC) and to see whether smoking status at baseline and quitting are independently associated with 1-year survival. Design A real-world cohort study following patients from diagnosis for up to 1 year or until death. Setting UK multi-centre study (28 sites) based in secondary and primary care. Participants 1124 patients with newly...