The etiology analysis of nonspecific chronic cough in children 5 or under 5 years old

Objective:To explore the causes of nonspecific chronic cough in children 5 or under 5 years old for improving its diagnosis and treatment.Methods:The clinical data of 85 children 5 or under 5 years old with nonspecific chronic cough were retrospectively analyzed.Results:The etiologic distribution of the 85 children with nonspecific chronic cough included 27 cases of cough variant asthma(31.8%), 32 cases of upper airway cough syndrome(37.6%), 16 cases of post-infection cough(18.8%), 3 cases of gastroesophageal reflux cough(3.5%), 2 cases of atopic cough(2.4%) and 5 cases of unknown etiology(5.9%).Conclusions:The main causes of nonspecific chronic cough in children 5 or under 5 years old are the upper airway cough syndrome, cough variant asthma, post-infection cough and other causes in turn.