title: [The research on the airway hyperresponsiveness and IOS airway resistance index of industrial area resident].
abstract: OBJECTIVE
  To study airway reactivity and impulse oscillation (IOS)-measured airway resistance indicators of residents of Zhenhai industrial area in Ningbo city.
  
  
  METHODS
  In the form of follow-up, both. airway reactivity and respiratory functions of populations in Zhenhai industrial zone (n = 215) and urban (n = 203) were measured, comparing difference degree between different regions.
  
  
  RESULTS
  Ninty-five of 215 cases in industrial area were identified as suspected airway hyperresponsiveness, but only 43 of 203 cases were in urban areas. Forty-seven of 95 cases (49.5%) in industrial zone were positive, while only 14 cases (32.6%) in urban. The proportions of people in the two regions on different types of airway hyperresponsiveness were significantly different (P < 0.01). All airway resistance indexes of urban populations were significantly lower than that of industrial zone (P < 0.05).
  
  
  CONCLUSIONS
  The prevalence of airway hyperresponsiveness and IOS airway resistance aspects of industrial area residents was higher than that of urban residents. Monitoring and evaluating the airway diseases, inflammatory lesions and respiratory function in the region were good for understanding the severe pollution in the local area in certain significance.
authors.forename: Jin
authors.initials: J
authors.lastname: Xu
authors.forename: Zhen
authors.initials: Z
authors.lastname: Wang
authors.forename: Hongcun
authors.initials: H
authors.lastname: Sun
mesh_terms: D000397:Air Pollution / Q000009:adverse effects*; D000403:Airway Resistance; D002947:Cities; D004777:Environment; D006801:Humans; D007221:Industry; D009991:Oscillometry; D012130:Respiratory Hypersensitivity / Q000503:physiopathology*; D012137:Respiratory System / Q000503:physiopathology*