Home dampness, current allergic diseases, and respiratory infections among young adults
M Kilpeläinena, E O Terhoa, H Heleniusb, M Koskenvuoc
a Department of
Pulmonary Diseases and Clinical Allergology, University of Turku,
Turku, Finland, b Department of Biostatistics, University of Turku, c Department of Public Health,
University of Turku
Correspondence to: Dr M Kilpeläinen, Department of Pulmonary Diseases and Clinical Allergology, Turku University Central Hospital, Kiinamyllynkatu 4-8, FIN-20520 Turku, Finland maritta.kilpelainen{at}utu.fi
Received 8 September 2000; Returned to authors 4 December 2000; Revised version received 24 January 2001; Accepted for publication 26 February 2001
BACKGROUND
The
relation between home dampness and respiratory symptoms among adults is
well confirmed, but data on specific allergic diseases and respiratory
infections is more limited. Individual factors that may enhance
susceptibility to the effects of home dampness are mainly unknown.
METHODS
The
association between home dampness and current physician diagnosed
asthma, allergic rhinitis, allergic conjunctivitis, atopic dermatitis,
common colds, and bacterial respiratory infections was studied in a
questionnaire survey of 10 667 Finnish first year university students
aged 18-25 years. The dampness categories analysed were visible mould
and visible mould or damp stains or water damage during the last year.
In multivariate analyses adjustment was made for parental education,
active and passive smoking, type and place of residence, pets, and wall
to wall carpets. The interaction effect of atopic heredity and dampness
was investigated.
RESULTS
Visible mould
or damp stains or water damage was reported by 15.0% of the
respondents. In multivariate models there was a positive association
between home dampness and current asthma, allergic rhinitis, and atopic
dermatitis, as well as common colds
4 times per year and other
respiratory infections, but not between home dampness and allergic
conjunctivitis. The strongest association was found between exposure to
visible mould and asthma (OR 2.21, 95% CI 1.48 to 3.28) and common
colds (OR 1.49, 95% CI 1.18 to 1.87). The risk of current asthma in
damp homes was highest among subjects with atopic heredity.
CONCLUSIONS
The risk
of current asthma, allergic rhinitis, and atopic dermatitis was higher
in damp homes. Of the respiratory infections, the risk of common colds
was most clearly increased.
Keywords: asthma; allergic rhinitis; atopic dermatitis; dampness
© 2001 by Thorax
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