Effect on smoking quit rate of telling patients their lung age: the Step2quit randomised controlled trial.

<h4>Objective</h4>To evaluate the impact of telling patients their estimated spirometric lung age as an incentive to quit smoking.<h4>Design</h4>Randomised controlled trial.<h4>Setting</h4>Five general practices in Hertfordshire, England.<h4>Participants</h4>561 current smokers aged over 35.<h4>Inte... View More