A Clinical Analysis Of Etiological Factors Of Chronic Cough In Children From Xinjiang

Objective:To analyse the etiology of chronic cough in Xinjiang children in order to develop a diagnosis plan of chronic cough in Xinjiang children. Methods:Reference "The child chronic cough diagnosis and treatment guide" diagnosis process analysis on2011June-2013December collected children with etiology involved the distribution of age, nationality, allergen, family history, environmental factors, pulmonary function and antimicrobial application. Results:The etiology of chronic cough in Xinjiang children is more common in respiratory tract infection and after infection coughing with192cases (29.40%),cough-variant asthma with158cases (24.20%) and up-airway cough syndrome with140cases (21.44%).In addition, other causes of163cases (24.96%),included more etiology of84cases(12.87%),5cases(0.77%) of unknown etiology. The leading causes of chronic cough in different ages group with difference in the distribution (x2=150.749, P<0.05).The main cause of chronic cough of infants (0-3years) is infection and after infection coughs,(87/183,47.54%) children (3-6years old) main cause is also infection and after infection coughs (60/190,31.58%) and cough variant asthma (42/190,22.11%) school-age children (6～14years old) main cause is cough variant asthma (100/280,35.71%) and upper airway cough syndrome (69/280,25.64%); The leading causes of chronic cough in different ethnic with difference in the distribution (χ2=24.969, P<0.05)。the main cause of chronic cough of Han nationality children is post infectious cough, but Uyghur, nationality is cough variant asthma. The inhaled allergens positive rate (121/265,45.66%), family history of allergy in positive rate (79/168,47.02%), the positive rate of environmental factor influence (94/152,61.84%) and pulmonary function abnormalities (116/163,71.17%) in the highest positive rate of CVA. Conclusion:The main causes of chronic cough in Xinjiang children etiology were respiratory tract infection and after infection coughing,cough variant asthma, upper airway cough syndrome,and attention should be paid to cause more cases; the constituent ratios of etiology in different ages and nationalities is different; The children were more likely to be diagnosed with cough variant asthma that they had personal history of allergies, family history of allergy or asthma, the exposure history of bad environments and the abnormal of lung function.