Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC)
This descriptive study was conducted to determine the prevalence of asthma and related symptoms among 6-7 and 13-14 year old school children in Tehran as a part of International study of Asthma and Allergies in childhood (ISAAC) phase III. The ISAAC written questionnaire was given to a total of 6127...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2004-03-01
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| Series: | Iranian Journal of Allergy, Asthma and Immunology |
| Subjects: | |
| Online Access: | https://ijaai.tums.ac.ir/index.php/ijaai/article/view/64 |
| _version_ | 1811277674897735680 |
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| author | Mohammad Reza Masjedi Lida Fadaizadeh Katayoon Najafizadeh Pouneh Dokouhaki |
| author_facet | Mohammad Reza Masjedi Lida Fadaizadeh Katayoon Najafizadeh Pouneh Dokouhaki |
| author_sort | Mohammad Reza Masjedi |
| collection | DOAJ |
| description | This descriptive study was conducted to determine the prevalence of asthma and related symptoms among 6-7 and 13-14 year old school children in Tehran as a part of International study of Asthma and Allergies in childhood (ISAAC) phase III. The ISAAC written questionnaire was given to a total of 6127 students of 72 schools in urban area of Tehran. Simple random sampling was performed with a uniform distribution throughout 12 clusters of 2 divisions of the municipality. All 6-7 and 13-14 year old students were enrolled in this study. Results showed that 15% of the 6-7 year olds and 17% of the 13-14 year olds had positive history of wheezing among which 8.6% and 10.6% respectively had had recent attacks. Physician confirmed asthma was reported in 2.1% of the 6-7 year olds and 2.6% of the 13-14 age group. Severity of asthma assessed by frequency of speech limitation due to wheeze was positive in 1.5% of 6-7 aged group and 3% of 13-14 year olds. Exercise induced wheeze was detected in 2.3% of the 6-7year old group compared to 15.3% of the 13-14 year olds. Nocturnal cough was more prevalent among 13-14 year olds (18.4%) compared to only 7.2% in the 6-7 year olds. Overall, no significant change in prevalence of asthma symptoms has occurred since 1997 (the last phase of ISAAC) among children of Tehran. The results of our study suggest higher rates of confirmed asthma among 6-7 years old girls compared to boys. However, more extensive and precisely designed studies are needed to further confirm these findings. |
| first_indexed | 2024-04-13T00:19:59Z |
| format | Article |
| id | doaj.art-3fc88c0eb0524bc092795f5dc56bb884 |
| institution | Directory Open Access Journal |
| issn | 1735-1502 1735-5249 |
| language | English |
| last_indexed | 2024-04-13T00:19:59Z |
| publishDate | 2004-03-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Allergy, Asthma and Immunology |
| spelling | doaj.art-3fc88c0eb0524bc092795f5dc56bb8842022-12-22T03:10:47ZengTehran University of Medical SciencesIranian Journal of Allergy, Asthma and Immunology1735-15021735-52492004-03-013164Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) Mohammad Reza Masjedi0 Lida Fadaizadeh1 Katayoon Najafizadeh2 Pouneh Dokouhaki3 This descriptive study was conducted to determine the prevalence of asthma and related symptoms among 6-7 and 13-14 year old school children in Tehran as a part of International study of Asthma and Allergies in childhood (ISAAC) phase III. The ISAAC written questionnaire was given to a total of 6127 students of 72 schools in urban area of Tehran. Simple random sampling was performed with a uniform distribution throughout 12 clusters of 2 divisions of the municipality. All 6-7 and 13-14 year old students were enrolled in this study. Results showed that 15% of the 6-7 year olds and 17% of the 13-14 year olds had positive history of wheezing among which 8.6% and 10.6% respectively had had recent attacks. Physician confirmed asthma was reported in 2.1% of the 6-7 year olds and 2.6% of the 13-14 age group. Severity of asthma assessed by frequency of speech limitation due to wheeze was positive in 1.5% of 6-7 aged group and 3% of 13-14 year olds. Exercise induced wheeze was detected in 2.3% of the 6-7year old group compared to 15.3% of the 13-14 year olds. Nocturnal cough was more prevalent among 13-14 year olds (18.4%) compared to only 7.2% in the 6-7 year olds. Overall, no significant change in prevalence of asthma symptoms has occurred since 1997 (the last phase of ISAAC) among children of Tehran. The results of our study suggest higher rates of confirmed asthma among 6-7 years old girls compared to boys. However, more extensive and precisely designed studies are needed to further confirm these findings.https://ijaai.tums.ac.ir/index.php/ijaai/article/view/64Symptoms |
| spellingShingle | Mohammad Reza Masjedi Lida Fadaizadeh Katayoon Najafizadeh Pouneh Dokouhaki Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) Iranian Journal of Allergy, Asthma and Immunology Symptoms |
| title | Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) |
| title_full | Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) |
| title_fullStr | Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) |
| title_full_unstemmed | Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) |
| title_short | Prevalence and Severity of Asthma Symptoms in Children of Tehran- International Study of Asthma and Allergies in Childhood (ISAAC) |
| title_sort | prevalence and severity of asthma symptoms in children of tehran international study of asthma and allergies in childhood isaac |
| topic | Symptoms |
| url | https://ijaai.tums.ac.ir/index.php/ijaai/article/view/64 |
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