title: The Prevalence of Allergic Rhinitis, Eczema and Asthma in Students of Guidance Schools in Mazandaran Province, Iran.
abstract: BACKGROUND
  Eczema, allergic rhinitis and asthma are common chronic allergic disorders in childhood.
  
  
  OBJECTIVE
  The aim of this study was to determine the prevalence of common allergic disorders among Iranian guidance schools students in Mazandaran Province, northern Iran.
  
  
  METHODS
  This analytical cross-sectional study was performed on 3000 children aged 11-14 years old during 2012-13 according to ISAAC study. Of 3000 recruited children 1576 (52.54%) were female and 1424 (47.46%) were male. Data gathered by ISAAC first phase questionnaire analysed by SPSS software 20.
  
  
  RESULTS
  The prevalence of wheezing, allergic rhinitis symptoms (sneezing and pruritus) and atopic dermatitis symptoms (pruritus skin lesion) were 30.5%, 30% and 15% respectively. History of pets contact and smoking was positive 6.6% and 36 % respectively. About 52% was born with caesarian section. There was wheezing in 32.5% during sport. The diagnosis of asthma, allergic rhinitis and eczema were 12.2%, 28.5% and 15% respectively. Eczema, asthma and allergic rhinitis were significantly more common in boys students (p < 0.05).
  
  
  CONCLUSIONS
  The results of this study showed that asthma, allergic rhinitis and eczema have a high prevalence and they are more common in boys.
authors.affiliation: Infectious Disease Research Center with Focus on Nosocomial Infection, Department of Pediatrics, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Daniel
authors.initials: D
authors.lastname: Zamanfar
authors.affiliation: Infectious Disease Research Center with Focus on Nosocomial Infection, Department of Pediatrics, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Javad
authors.initials: J
authors.lastname: Gaffari
authors.affiliation: Infectious Disease Research Center with Focus on Nosocomial Infection, Department of Pediatrics, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Salar
authors.initials: S
authors.lastname: Behzadnia
authors.affiliation: Biostatistics Department, Health Science Research Center, Faculty of Health, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Jamshid
authors.initials: J
authors.lastname: Yazdani-Charati
authors.affiliation: Infectious Disease Research Center with Focus on Nosocomial Infection, Department of Pediatrics, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Sahar
authors.initials: S
authors.lastname: Tavakoli
keywords: Allergic Rhinitis; Asthma; Eczema; Students; middle school