Prevalence of Asthma Symptoms in Children and Adolescents in Karaj, Iran: A Report from the Global Asthma Network Phase I Study

Farimah Fayyaz; Kiavash Khashayar; Mina Rasmi; Ehsan Shahrestanaki; Hamid Asayesh; Marzieh Tavakol; Mostafa Qorbani

doi:10.18502/ijaai.v21i4.10286

Farimah Fayyaz Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran
Kiavash Khashayar Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran
Mina Rasmi Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran
Ehsan Shahrestanaki Social Determinants of Health Research Center, Alborz University of Medical Sciences, Karaj, Iran
Hamid Asayesh Department of Medical Emergencies, Qom University of Medical Sciences, Qom, Iran
Marzieh Tavakol Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
Mostafa Qorbani Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran

DOI: https://doi.org/10.18502/ijaai.v21i4.10286

Keywords: Asthma; Adults; Children; Epidemiology; Wheezing

Abstract

This study is a part of the Global Asthma Network (GAN) phase I project to assess asthma symptoms in children, adolescents, and their parents in Karaj, Iran. The present cross-sectional study was conducted in 2019-2020 in Karaj, Iran, in alignment with the goals of the GAN study, including assessing asthma prevalence, severity, and risk factors.

In this study, 1500 students were selected using a multistage stratified cluster sampling method from 40 public and private schools in Karaj. The entire population of children aged 6-7 years or adolescents aged 13-14 years in a given school and their parents was considered the sample unit. The GAN core questionnaires were completed for students and parents.

The results showed that the response rate was 89.6%. A total of 1326 children and adolescents, 572 children aged 6-7 years, and 754 aged 13-14 years and their parents were enrolled in the study. The prevalence of ever- and current wheezing was 24% and 13.8% among 6-7-year-olds, and 18.8% and 12.3% among 13-14-year-olds, respectively. In children aged 6-7 years, parental wheezing significantly increased the chances of children wheezing (odds ratio: 3.27; 95% confidence interval: 1.70, 6.310).

The current study’s findings showed that the prevalence of asthma symptoms among children and adolescents and their parents in Karaj, Iran, was mainly higher than the findings of studies conducted in other cities in Iran.