Year: 2015 Source: NPJ Primary Care Respiratory Medicine.(2014).24(14094):1-14​doi:10.1038/npjpcrm.2014.94 SIEC No: 20150015

There is good evidence for an association between chronic obstructive pulmonary disease (COPD) and depression, but there are few studies on the relationship between COPD and suicidal ideation/suicidal attempts. GOLD stages III and IV COPD were associated with a marked increase in suicidal behaviour.