Lung function defects in treated pulmonary tuberculosis patients.

Awareness of the likelihood of cancer associated with haemoptysis is of course central. However, our study also provided important information regarding the epidemiology of less frequent aetiologies of haemoptysis. For example, among them, we demonstrated that the prevalence of tuberculosis associated with this symptom was around 3%, but seems to have decreased steadily between 2008 and 2012 (from 3.4% to 2.5%). We believe our results bring important and, until now, unknown information about high-income countries. We feel that the association of large retrospective but comprehensive cohort studies [1] and smaller but prospective [6] studies will help to better characterise this ominous symptom.