Lung Screen Uptake Trial

"In the absence of usual care screening invitation materials, the control invitation materials and strategy are based upon the best available materials and methods of existing cancer screening programmes. These are comprised of the following:~1. a pre-invitation letter notifying patients of the lung health check service and an information booklet mimicking those of existing screening programmes~2. an invitation letter with a pre-scheduled appointment plus the same information booklet~3. a reminder re-invitation letter for those who miss their appointment without cancelling"

The intervention invitation strategy is comprised of the same stages of invitation materials as the control group. The two differences are i) Instead of the information booklet they will received a targeted leaflet, and ii) the invitation and reminder letters will use indirect phrasing to explain that smokers and ex-smokers are being invited. Together, these manipulations aim to deliver a targeted, stepped and low burden approach to information provision prior to the appointment.