Dysfunctional breathing in COPD

I was interested to read Dr Morgan’s review of dysfunctional breathing in asthma in the 2002 Year in Review,1 but the problem may be even greater in COPD. Dr Morgan suggests that the problem may have serious consequences in terms of morbidity, but we have published indirect evidence of an association with mortality. In the 10 year follow up of the Darlington and Northallerton Asthma Study the odds ratio for the risk of dying in those who had …