Prevalence of asthma and bronchial hyperreactivity in Danish schoolchildren: no change over 10 years

Monica Zilmer, Nick Phaff Steen, Gitte Zachariassen, Tove Duus, Birthe Kristiansen, Susanne Halken

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Aim:  To describe the point prevalence of current physician-diagnosed asthma and bronchial hyperreactivity (BHR) in 2001 among unselected Danish schoolchildren aged 6-17 years, compared with the prevalence from a similar study from 1990 to 1991. Methods:  Cross-sectional study using parental questionnaire on asthma and respiratory symptoms combined with a 6-min free running test with peak expiratory flow rate (PEFR) measurement (n = 1051, response rate 89.3%). Results were compared with those of a similar study in the same area from 1990 to 1991. Main outcome measures were current physician-diagnosed asthma or BHR in children without physician-diagnosed asthma measured by either a decrease in lung function after standardized running test and/or variability in PEFR on home monitoring. Results:  The prevalence of current physician-diagnosed asthma was 4.0% [95% confidence interval (CI) 2.7-5.3%] in 1990-1991 and 3.6% (95% CI 2.4-4.8%) in 2001. The prevalence of BHR was 3.2% (95% CI 2.0-4.4%) in 1990-1991 and 2.0% (95% CI 1.1-2.9%) in 2001. The combined prevalence was 7.2% (95% CI 5.4-8.9%) in 1990-1991 and 5.6% (95% CI 4.2-7.1%) in 2001. Conclusion:  The point prevalence of current physician-diagnosed asthma and BHR among unselected Danish schoolchildren aged 6-17 years was unchanged over 10 years between 1990-1991 and 2001.
Original languageEnglish
JournalActa Paediatrica
Volume100(3)
Pages (from-to)385-9
ISSN0803-5253
DOIs
Publication statusPublished - Mar 2011

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Bronchial Hyperreactivity
Confidence Intervals
Physicians
Peak Expiratory Flow Rate
Cross-Sectional Studies
Outcome Assessment (Health Care)
Lung

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Zilmer, Monica ; Steen, Nick Phaff ; Zachariassen, Gitte ; Duus, Tove ; Kristiansen, Birthe ; Halken, Susanne. / Prevalence of asthma and bronchial hyperreactivity in Danish schoolchildren: no change over 10 years. In: Acta Paediatrica. 2011 ; Vol. 100(3). pp. 385-9.
@article{088be9ad82254634a8c18d1667822ab9,
title = "Prevalence of asthma and bronchial hyperreactivity in Danish schoolchildren: no change over 10 years",
abstract = "Aim:  To describe the point prevalence of current physician-diagnosed asthma and bronchial hyperreactivity (BHR) in 2001 among unselected Danish schoolchildren aged 6-17 years, compared with the prevalence from a similar study from 1990 to 1991. Methods:  Cross-sectional study using parental questionnaire on asthma and respiratory symptoms combined with a 6-min free running test with peak expiratory flow rate (PEFR) measurement (n = 1051, response rate 89.3{\%}). Results were compared with those of a similar study in the same area from 1990 to 1991. Main outcome measures were current physician-diagnosed asthma or BHR in children without physician-diagnosed asthma measured by either a decrease in lung function after standardized running test and/or variability in PEFR on home monitoring. Results:  The prevalence of current physician-diagnosed asthma was 4.0{\%} [95{\%} confidence interval (CI) 2.7-5.3{\%}] in 1990-1991 and 3.6{\%} (95{\%} CI 2.4-4.8{\%}) in 2001. The prevalence of BHR was 3.2{\%} (95{\%} CI 2.0-4.4{\%}) in 1990-1991 and 2.0{\%} (95{\%} CI 1.1-2.9{\%}) in 2001. The combined prevalence was 7.2{\%} (95{\%} CI 5.4-8.9{\%}) in 1990-1991 and 5.6{\%} (95{\%} CI 4.2-7.1{\%}) in 2001. Conclusion:  The point prevalence of current physician-diagnosed asthma and BHR among unselected Danish schoolchildren aged 6-17 years was unchanged over 10 years between 1990-1991 and 2001.",
author = "Monica Zilmer and Steen, {Nick Phaff} and Gitte Zachariassen and Tove Duus and Birthe Kristiansen and Susanne Halken",
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Prevalence of asthma and bronchial hyperreactivity in Danish schoolchildren: no change over 10 years. / Zilmer, Monica; Steen, Nick Phaff; Zachariassen, Gitte; Duus, Tove; Kristiansen, Birthe; Halken, Susanne.

In: Acta Paediatrica, Vol. 100(3), 03.2011, p. 385-9.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Prevalence of asthma and bronchial hyperreactivity in Danish schoolchildren: no change over 10 years

AU - Zilmer, Monica

AU - Steen, Nick Phaff

AU - Zachariassen, Gitte

AU - Duus, Tove

AU - Kristiansen, Birthe

AU - Halken, Susanne

N1 - © 2010 The Author(s)/Acta Paediatrica © 2010 Foundation Acta Paediatrica.

PY - 2011/3

Y1 - 2011/3

N2 - Aim:  To describe the point prevalence of current physician-diagnosed asthma and bronchial hyperreactivity (BHR) in 2001 among unselected Danish schoolchildren aged 6-17 years, compared with the prevalence from a similar study from 1990 to 1991. Methods:  Cross-sectional study using parental questionnaire on asthma and respiratory symptoms combined with a 6-min free running test with peak expiratory flow rate (PEFR) measurement (n = 1051, response rate 89.3%). Results were compared with those of a similar study in the same area from 1990 to 1991. Main outcome measures were current physician-diagnosed asthma or BHR in children without physician-diagnosed asthma measured by either a decrease in lung function after standardized running test and/or variability in PEFR on home monitoring. Results:  The prevalence of current physician-diagnosed asthma was 4.0% [95% confidence interval (CI) 2.7-5.3%] in 1990-1991 and 3.6% (95% CI 2.4-4.8%) in 2001. The prevalence of BHR was 3.2% (95% CI 2.0-4.4%) in 1990-1991 and 2.0% (95% CI 1.1-2.9%) in 2001. The combined prevalence was 7.2% (95% CI 5.4-8.9%) in 1990-1991 and 5.6% (95% CI 4.2-7.1%) in 2001. Conclusion:  The point prevalence of current physician-diagnosed asthma and BHR among unselected Danish schoolchildren aged 6-17 years was unchanged over 10 years between 1990-1991 and 2001.

AB - Aim:  To describe the point prevalence of current physician-diagnosed asthma and bronchial hyperreactivity (BHR) in 2001 among unselected Danish schoolchildren aged 6-17 years, compared with the prevalence from a similar study from 1990 to 1991. Methods:  Cross-sectional study using parental questionnaire on asthma and respiratory symptoms combined with a 6-min free running test with peak expiratory flow rate (PEFR) measurement (n = 1051, response rate 89.3%). Results were compared with those of a similar study in the same area from 1990 to 1991. Main outcome measures were current physician-diagnosed asthma or BHR in children without physician-diagnosed asthma measured by either a decrease in lung function after standardized running test and/or variability in PEFR on home monitoring. Results:  The prevalence of current physician-diagnosed asthma was 4.0% [95% confidence interval (CI) 2.7-5.3%] in 1990-1991 and 3.6% (95% CI 2.4-4.8%) in 2001. The prevalence of BHR was 3.2% (95% CI 2.0-4.4%) in 1990-1991 and 2.0% (95% CI 1.1-2.9%) in 2001. The combined prevalence was 7.2% (95% CI 5.4-8.9%) in 1990-1991 and 5.6% (95% CI 4.2-7.1%) in 2001. Conclusion:  The point prevalence of current physician-diagnosed asthma and BHR among unselected Danish schoolchildren aged 6-17 years was unchanged over 10 years between 1990-1991 and 2001.

U2 - 10.1111/j.1651-2227.2010.02036.x

DO - 10.1111/j.1651-2227.2010.02036.x

M3 - Journal article

VL - 100(3)

SP - 385

EP - 389

JO - Acta Paediatrica

JF - Acta Paediatrica

SN - 0803-5253

ER -