title: [Studies on the correlation of 489 cases of bronchial asthma complicated with allergic rhinitis in Datong].
abstract: OBJECTIVE
  To discuss the disease incidence of bronchial asthma (BA) complicated with allergic rhinitis (AR) and the correlation of their age, classification, concomitant symptom.
  
  
  METHODS
  Four hundred-nine cases of AR were identified by means of random sampling, physical examination, laboratory test and questionnaire. According to the diagnostic criteria of BA, they were divided into two groups: group I ( control group) including 298 cases suffering from only AR, group II ( experimental group) 191 cases of BA concomittent with AR.
  
  
  RESULTS
  1) This study showed that BA concomittent with AR account for 39% of all cases; 2) Incidence of aspirin triad syndrome (asthma, rhinopolyps and aspirin intolerance) was significantly different in two groups (P<0.01); 3) As for age group distribution, there was significant difference between groups in age segment 10-19 and 40-49 (P<0.05); 4) Disease classification: there were significant differences in the incidence of moderate to severe intermittent AR, mild continuous AR, and moderate to severe continuous AR between two groups (P<0.05); 5) Other major concomitant diseases and symptoms distribution; the concomittant occurrence of allergic pharyngitis, sinusitis, conjunctivitis, secretory tympanitis, hypertrophic rhinitis, dermatosis, discomfort of gastrointestinal tract, and headache of unknown origin were significantly different between two groups (P<0.05). The difference above showed that the occurrence in experimental group was higher than that in control group.
  
  
  CONCLUSIONS
  the incidence of BA complicated with AR were relatively high in Datong, with a peak incidence at age 10 to 19 and 40 to 49. The common types of disease were moderate to severe intermittent AR, mild continuous AR, and moderate to severe continuous AR. The number of patients with BA complicated with AR were growing.
authors.affiliation: Department of Otorhinolaryngology, the Affiliated Hospital of Shanxi Datong University Medical College, Datong, 037008, China. bianyanfenjiao@163.com
authors.forename: Yanfen
authors.initials: Y
authors.lastname: Bian
authors.forename: Yaoguo
authors.initials: Y
authors.lastname: Zhu
authors.forename: Shangde
authors.initials: S
authors.lastname: Guo
authors.forename: Jianbin
authors.initials: J
authors.lastname: Wang
authors.forename: Zhilin
authors.initials: Z
authors.lastname: Xue
authors.forename: Xuemin
authors.initials: X
authors.lastname: Fan
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001249:Asthma / Q000150:complications / Q000453:epidemiology*; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012221:Rhinitis, Allergic, Perennial / Q000150:complications / Q000453:epidemiology*; D006255:Rhinitis, Allergic, Seasonal / Q000150:complications / Q000453:epidemiology*; D011795:Surveys and Questionnaires; D055815:Young Adult