Obstructive sleep apnoea and atopy among middle aged chronic obstructive pulmonary disease and bronchial asthma patients.

Background: Obstructive sleep apnoea syndrome is associated with significant morbidity. A high prevalence of obstructive sleep apnoea (OSA) symptoms has been reported in patients with asthma and chronic obstructive pulmonary disease (COPD). There are limited studies regarding relationship between atopy and OSA.