Sikjaer MG, et al. - The link between psychiatric comorbidity and the course of chronic obstructive pulmonary disease (COPD), lung cancer and tuberculosis (TB) was investigated, for the first time ever, in this study, using national databases. Reduced survival was noted in patients with COPD or TB and a pre-existing psychiatric comorbidity. Significantly higher age at the time of diagnosis, higher Deyo-Charlson Comorbidity Index, and an overrepresentation of singles was found in patients with a psychiatric comorbidity, for all 3 pulmonary diseases. In this Danish study, the importance of detecting these major respiratory diseases in patients with psychiatric comorbidities was emphasized. Data also stressed on intensifying the treatment and follow up of these patients.