Prevalence and Severity of Adolescent Asthma in Yazd, Iran: Based on the 2020 Global Asthma Network (GAN) Survey (original) (raw)
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Prevalence of asthma and related symptoms among schoolchildren in Dezful city, Southwestern Iran
Jorjani Biomedicine Journal, 2024
Background: Asthma is a chronic respiratory disease and a major public health problem globally. This study aimed to determine the prevalence of asthma and related symptoms in schoolchildren in Dezful city, southwest Iran. Methods: In this cross-sectional descriptive analytical study, the prevalence of asthma symptoms was measured using a randomized cluster sampling method among 2,978 schoolchildren aged 6-14 years. A validated questionnaire from the International Study of Asthma and Allergies in Childhood (ISAAC) was used from January to February 2020. The chi-square test was used to determine the relationship between variables, which were expressed as percentages, with a p‐value <0.05 considered statistically significant. Results: The overall prevalence of asthma was 4.7% (CI=3.98 - 5.54), significantly higher among 13-14-year-olds compared to the 6-7-year-old age group (6.4% vs. 3.1%, p<0.001) and in males versus females (6.9% vs. 2.5%, p<0.001). The total prevalence of wheezing in the last year, the main symptom of asthma, was 7.2% (CI=6.31 - 8.20), significantly higher among 13-14-year-olds (8.4% vs. 6.1%, p<0.009) and male schoolchildren (9.6% vs. 4.7%, p<0.001). Conclusion: According to our findings, and compared to the previous ISAAC study in Iran, the prevalence of asthma symptoms was relatively low among Dezful schoolchildren. Further epidemiological studies are needed to investigate factors affecting this disease, such as indoor and outdoor environments, as well as their effects on gene expression over time.
The prevalence of asthma among the students (7-18 years old) in Tehran during 2002-2003
Iranian Journal of Allergy, Asthma and Immunology, 2004
Abstract: Asthma is one of the most common problems of childhood, responsible for a significant proportion of abstinence from school because of chronic illness. This study was carried out among the school-aged children (7-18 years) in Tehran schools during 2002-2003, in order to determine the frequency of asthma. According to the recommendation of WHO (World Health Organization), we designed a questionnaire, containing 8 standard questions, and the students were given necessary information to complete the ...
International Journal of Advanced Biological and Biomedical Research
Asthma is the most common cause of recurrent wheezing, cough and dyspnea in childhood. Delay in diagnosis and lack of appropriate treatment can cause sustained changes which decrease respiratory capacity of children in future. Therefore, identifying the symptoms relating to asthma is the key for timely diagnosis and treatment of this disease. This study was done to investigate asthma incidence in Khomein and compare it to other cities of Iran susceptible to asthma, including Tehran. The present study was a descriptive crosssectional one based on standard questionnaire of International Study of Asthma and Allergies in Childhood (ISAAC). For conducting this study, 1621 students of first grade in some primary schools and junior high schools of Khomein were selected through nonrandom sampling and census and were evaluated during 2015-2016. Both groups were studied and evaluated in terms of being affected by asthma and its severity (current and previous wheezing ,night-time cough, talking limitation due to coughing or wheezing, exercise-induced wheezing, nocturnal awaking due to cough). Results were analyzed through the chi-square test. The asthma diagnosed in Khomein students by the physician during the study was 3.5% while 73.2% of the children under study had at least one asthma symptom. One eighth of the students under study had severe asthma. Comparing with polluted Tehran and northern cities of Iran, Asthma symptoms incidence was higher in Khomein where the humidity and industrial pollution is less than in those cities and the asthma cases diagnosed by physicians were much fewer than expected asthma incidence.
A cross-sectional study of prevalence and risk factors for childhood asthma in Ahvaz city, Iran
Postȩpy dermatologii i alergologii, 2015
Childhood asthma is the main public health problem in world, and dramatically has increased in developed as well as developing countries. To assess prevalence and risk factors for asthma based on ISAAC questionnaire. It was a cross-sectional school population-based study which was carried out on 1803 school children aged 6-7 and 13-14 in Ahvaz city, Khuzestan, south west of Iran, in 2011. The International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire was used as a tool to identify prevalence of asthma. Chi-square (χ(2)) test was then used to identify possible potential risk factors associated with asthma. Logistic regression analysis was then applied to determine the various potential risk factors associated with asthma. Data were entered and analyzed using SPSS (version 17) statistical analysis software. The significant level in this study was considered 0.05. The overall prevalence of asthma among school children was 4.9%, but in males it was 5.5% and in female...
Prevalence of asthma among schoolchildren in Ahvaz, Islamic Republic of Iran
Eastern Mediterranean health journal = La revue de santé de la Méditerranée orientale = al-Majallah al-ṣiḥḥīyah li-sharq al-mutawassiṭ, 2010
The prevalence of asthma was determined in a random sample of schoolchildren in Ahvaz city, southwest Islamic Republic of Iran, based on the International Study of Asthma and Allergy in Childhood (ISAAC) protocol. The prevalence of ever wheeze and current wheeze was 11.1% and 7.4% among 1410 children aged 6-7 years (parent-reported) and 17.7% and 10.3% among 1450 children aged 13-14 years (self-reported). The prevalence of ever asthma was significantly higher among 13-14-year-olds (9.8%) than 6-7-year-olds (6.8%) but no significant difference was found between males and females in either age group. Comparisons are made with other Iranian cities and international data.
Prevalence of asthma symptoms in Golestan schoolchildren aged 6-7 and 13-14 years in Northeast Iran
Frontiers of medicine, 2016
Asthma is the most common chronic disease among children, and its incidences are often imminent among elementary schoolchildren. This study aimed to examine the prevalence of asthma symptoms in Golestan schoolchildren aged 6-7 and 13-14 years in Northeast Iran. The prevalence rate was compared according to age group (aged 6-7 years vs. aged 13-14 years) and gender (male vs. female). In this cross-sectional study, 1706 Iranian schoolchildren aged 6-7 and 13-14 years in Golestan Province were enrolled. Participants completed questionnaires between February and July 2014. Asthma symptoms were assessed using the questionnaire of the International Study of Asthma and Allergies in Childhood protocol in Persian. The logistic regression model was used to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) of the asthma symptoms for each of the gender and age groups. The prevalence rates of "current asthma" symptoms and "asthma ever" in all the children were...
BMC Pediatrics
Background Asthma and allergic complications are the most common chronic disorders in children and adolescents. This study aimed to determine the prevalence and severity of asthma, allergic rhinitis, eczema among schoolchildren, and some related risk factors. Methods The cross-sectional study was performed in 2019 and involved 4000 students aged 6–7 years and 4000 students aged 13–14 years (both girls and boys) from urban schools in Khuzestan Province, southwestern Iran. We used the multi-stage sampling method. Data were collected using the Persian version of the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. Results The prevalence of current wheeze, wheeze ever and asthma ever in the age group of 6–7 years was 3.8, 4.5, and 1.8%, respectively; in the age group of 13–14 years, it was 4.4, 5.9, and 3.4, respectively. In terms of gender, males (4.9, 6.0, and 2.7 percent, respectively) had substantially higher rates of current wheeze, wheeze ever, and a...
The prevalence of pediatric asthma in the Islamic Republic of Iran: A review and meta-analysis
2013
Article type: Review Article The prevalence of asthma is inconsistent in different countries and even in regions of a country. Awareness of this prevalence has favorable impacts on health care system planning. The aim of this literature review and meta-analysis was to estimate the prevalence of pediatric asthma in the Islamic Republic of Iran during two recent decades. A search was done in national (SID, Magiran, Irandoc, Iranmedex) and international databases (PubMed and Google Scholar) to find articles which evaluated asthma prevalence in pediatrics and adolescences, using the international study of asthma and allergies in children written questionnaire. Twenty eight articles between 1992 and 2012 with a total of 96822 participants were found. ‘Asthma ever’ prevalence was 2.7% (95% CI: 1.9 to 3.6) and 3.5% (95% CI: 2.6 to 4.6) in children aged 6-7 and 1314 years, respectively. ‘Wheezing in the past 12 months’ were 7.6% (5.6 to 9.8) and 10.7% (95%CI: 8.9 to 12.7) in children aged 6...
2013
Article type: Review Article The prevalence of asthma is inconsistent in different countries and even in regions of a country. Awareness of this prevalence has favorable impacts on health care system planning. The aim of this literature review and meta-analysis was to estimate the prevalence of pediatric asthma in the Islamic Republic of Iran during two recent decades. A search was done in national (SID, Magiran, Irandoc, Iranmedex) and international databases (PubMed and Google Scholar) to find articles which evaluated asthma prevalence in pediatrics and adolescences, using the international study of asthma and allergies in children written questionnaire. Twenty eight articles between 1992 and 2012 with a total of 96822 participants were found. ‘Asthma ever’ prevalence was 2.7% (95% CI: 1.9 to 3.6) and 3.5% (95% CI: 2.6 to 4.6) in children aged 6 -7 and 1314 years, respectively. ‘Wheezing in the past 12 months’ were 7.6% (5.6 to 9.8) and 10.7% (95%CI: 8.9 to 12.7) in children aged ...
Burden of pediatric asthma in Kurdistan province, West of Iran
2021
BACKGROUND: Asthma is the most common chronic respiratory disease (CRD) and one of the most serious and important pediatric diseases in developing countries. The present study aims to estimate the burden of asthma among children in Kurdistan Province, Iran. METHODS: Disability-adjusted life year (DALY) was used in order to estimate the burden of asthma. In a crosssectional study, with a sample size of 4000, and using the multi-stage sampling method and Asthma and Allergies in Childhood (ISAAC) questionnaire, the prevalence of asthma was estimated for two 6-7 and 13-14 age groups in Kurdistan Province in 2013. In addition, some necessary data were extracted from the death registration system in Kurdistan Provincial Health Center and Statistical Center of Iran (SCI). RESULTS: Burden of asthma for 6-7 age group was 71.6 DALYs in boys (2.77 DALYs per 1000 population) and 48 in girls (2.22 DALYs per 1000 population) with a total burden of 119.6 DALYs (2.52 DALYs per 1000 population). Mor...