A new survey may help physicians predict which lung disease patients are likely to quit smoking, and offer treatment accordingly. Continued smoking is a powerful predictor of morbidity and mortality in patients with chronic obstructive pulmonary disease (COPD). Lena Lundh and colleagues from the Karolinska Institute in Sweden asked whether the Trying to Quit questionnaire could assess which COPD sufferers were most likely to quit smoking. High scores on the Trying to Quit questionnaire were associated with a lower likelihood of quit attempts. Detailed analysis of test results found contradictory results, indicating larger studies are needed to help elucidate specific mental states associated with quitting. A reliable test will allow doctors and other health professionals to target support programmes to patients with the best odds of successfully quitting smoking, an important step in slowing the progression of COPD.