Residential characteristics predict changes in Der p 1, Fel d 1 and ergosterol but not fungi over time.
Clin Exp Allergy
; 33(9): 1281-8, 2003 Sep.
Article
en En
| MEDLINE
| ID: mdl-12956751
BACKGROUND: Allergen and fungal exposures are important risk factors for asthma. We conducted a longitudinal analysis of allergen levels in Melbourne homes between 1996 and 1998 to examine the effects of changing residential characteristics on allergen and fungal levels. We also examined the changes in levels of indoor allergens. METHODS: The subjects were participants in the European Community Respiratory Health Survey (ECRHS) in Melbourne. In 1996, 485 subjects participated in a follow-up study, which involved both home and laboratory visits. Dust and air samples were collected from participants' bedrooms and a validated residential questionnaire was administered. In 1998, 360 participants underwent further follow-up. House dust mite (Der p 1) and cat allergens (Fel d 1) and ergosterol were measured in dust. RESULTS: We observed moderate within home correlations between 1996 and 1998 in floor Der p 1 (intraclass correlation ICC=0.48), bed Der p 1 (ICC=0.61), Fel d 1 (kappa=0.53) and ergosterol (ICC=0.28) levels. We found that the floor Der p 1 levels decreased from 1996 to 1998 in the homes of participants who moved to an attached home, moved their bedrooms to the first floor, removed fitted carpet or central heating. Replacing or vacuuming the mattress more than twice per year reduced levels of Der p 1 in the bed. Ergosterol levels were reduced by removing visible mould and fitted carpet. CONCLUSIONS: These findings provide evidence to support current advice with regard to allergen avoidance in patients with dust mite and fungal allergies.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Alérgenos
/
Ergosterol
/
Hongos
/
Vivienda
Tipo de estudio:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Aspecto:
Determinantes_sociais_saude
Límite:
Adult
/
Animals
/
Humans
/
Middle aged
Idioma:
En
Revista:
Clin Exp Allergy
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2003
Tipo del documento:
Article
País de afiliación:
Australia
Pais de publicación:
Reino Unido