title: [Etiology and risk factors of infantile wheezing].
abstract: OBJECTIVE
  To study the etiology and risk factors of infantile wheezing.
  
  
  METHODS
  The clinical data of 180 infants with wheezing were retrospectively studied. The risk factors for wheezing attacks were investigated by logistic regression analysis.
  
  
  RESULTS
  Viral infection (33.3%) was the most common cause for wheezing attacks, followed by asthma (19.4%), parental smoking and special environments (15.6%), gastroesophageal reflux disease (12.8%), premature delivery (7.8%), Mycoplasma infection (6.7%), and bronchopulmonary dysplasia (4.4%). The multivariate logistic regression analysis showed 7 factors that significantly correlated with wheezing attacks: allergic history of parents, sensitization to alimentary or inspiratory allergens, viral or Mycoplasma infection, premature delivery and special environments.
  
  
  CONCLUSIONS
  The commonest cause of infantile wheezing is viral infection, followed by asthma. Genetic factors, individual atopic constitution and environmental factors play important roles in wheezing attacks.
authors.affiliation: Department of Pediatircs, Bo'ai Hospital of Zhongshan, Nanfang Medical University, Zhongshan, Guangdong 528403, China. miaomiao-yao@163.com
authors.forename: Miao-Miao
authors.initials: MM
authors.lastname: Yao
authors.forename: Ke-Ming
authors.initials: KM
authors.lastname: Wang
authors.forename: Qun-Ying
authors.initials: QY
authors.lastname: Xu
authors.forename: Gui-Lan
authors.initials: GL
authors.lastname: Wang
authors.forename: Xiang-Teng
authors.initials: XT
authors.lastname: Liu
mesh_terms: D001249:Asthma / Q000150:complications; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D016015:Logistic Models; D008297:Male; D012135:Respiratory Sounds / Q000209:etiology*; D012189:Retrospective Studies; D012307:Risk Factors; D014777:Virus Diseases / Q000150:complications