Hyppighed af astma hos skolebørn. Er sygdommen underdiagnosticeret?

Translated title of the contribution: Occurrence of asthma in schoolchildren. Is the disease underdiagnosed?

A H Høst, T Duus, T B Ibsen, A Høst

Research output: Contribution to journalJournal articleResearchpeer-review


A cross sectional study of 1064 unselected school children aged 6-17 years obtained the following for 851 of them (80%): complete data from a questionnaire on current asthma diagnosed by a physician, information on previous recurrent wheezing and present exposure to tobacco smoking combined with measurement of peak expiratory flow rate (PEFR) before and after six minutes running. Seventy-five (8.8%) had had previous periods of recurrent wheezing, and 535 (62.7%) were exposed to tobacco smoking at home. A correlation was found between passive smoking and previous recurrent wheezing. Thirty-four (4.0%) suffered from current asthma. Thirty-one children (3.6%) without an earlier diagnosis of asthma showed a significant exercise-induced fall in PEFR) (at least 15%). Thirty of these 31 children were followed up, and at reinvestigation, 27 (95%) were confirmed to suffer from hyperreactive airways based on significant exercise-induced fall in PEFR and/or a significantly increased variability of PEFR of at least 15% as measured by home recordings of PEFR. In conclusion the point prevalence of asthma diagnosed by a physician was 4.0%. In addition at least 3.2% had reproducible significant bronchial hyperreactivity indicating a point prevalence of asthma/clinically significant bronchial hyperreactivity of at least 7.2%. Asthma seems to be underdiagnosed in school children. Furthermore, our results indicate an association between passive smoking and recurrent wheezing.

Translated title of the contributionOccurrence of asthma in schoolchildren. Is the disease underdiagnosed?
Original languageDanish
JournalUgeskrift for Læger
Issue number49
Pages (from-to)3978-81
Number of pages4
Publication statusPublished - 6. Dec 1993


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