Cough is a common complaint in children. However, data on aetiologies and outcome of chronic cough are sparse in Hong Kong Chinese children. Methods: Records of children referred to the out-patient clinic for chronic cough, defined as cough for more than 4 weeks, in Kwong Wah Hospital, a secondary hospital, over a 12-month period were reviewed. Underlying diagnoses and outcomes after follow up for a variable period were ascertained. Results: 42 patients were included. Chronic cough cases repr...