PMID- 8339803
OWN - NLM
STAT- MEDLINE
DCOM- 19930901
LR  - 20130523
IS  - 0903-1936 (Print)
IS  - 0903-1936 (Linking)
VI  - 6
IP  - 6
DP  - 1993 Jun
TI  - High prevalence of asthma and related symptoms in teenagers in northern Sweden.
PG  - 834-9
AB  - Recent reports have suggested an increased asthma prevalence in the Nordic 
      countries. The prevalence of asthma and related symptoms from lower airways in 
      Umea, Northern Sweden, was investigated in 1987. We used a questionnaire and a 
      skin prick test in 1,112 teenagers. Individuals with symptoms or positive skin 
      prick tests were examined further. The clinical examination included an 
      interview, a ventilatory lung function test, serum specific immunoglobulin E 
      (IgE) test, and a physical examination. Individuals with symptoms from the lower 
      airways underwent a methacholine inhalation test. Asthma was defined as recurrent 
      attacks of dyspnoea and/or wheezing, triggered by known stimuli (excluding 
      infections), and at least one of the following: signs of obstructive airways at 
      examination or provocation concentration giving a 20% fall in forced expiratory 
      volume in one second (PC20) < 8 mg.ml-1. Using this definition, the prevalence of 
      asthma was 6.8%, with a significantly higher prevalence in girls (9.6%) than in 
      boys (4.1%). Furthermore, 16.4% had dyspnoea, wheeze or prolonged cough but did 
      not fulfil our criteria for asthma. The prevalence of asthma and of symptoms from 
      lower airways is higher than has previously been found in Sweden.
FAU - Norrman, E
AU  - Norrman E
AD  - Depts of Allergy and Lung Medicine, University Hospital, Umea, Sweden.
FAU - Rosenhall, L
AU  - Rosenhall L
FAU - Nystrom, L
AU  - Nystrom L
FAU - Bergstrm, E
AU  - Bergstrm E
FAU - Stjenberg, N
AU  - Stjenberg N
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Eur Respir J
JT  - The European respiratory journal
JID - 8803460
SB  - IM
MH  - Adolescent
MH  - Asthma/diagnosis/*epidemiology
MH  - Cohort Studies
MH  - Female
MH  - Humans
MH  - Male
MH  - Prevalence
MH  - Respiration Disorders/diagnosis/epidemiology
MH  - Sweden/epidemiology
EDAT- 1993/06/01 00:00
MHDA- 1993/06/01 00:01
CRDT- 1993/06/01 00:00
PHST- 1993/06/01 00:00 [pubmed]
PHST- 1993/06/01 00:01 [medline]
PHST- 1993/06/01 00:00 [entrez]
PST - ppublish
SO  - Eur Respir J. 1993 Jun;6(6):834-9.