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An investigation of the housing environment for persons with asthma and persons without asthma
Örebro University, Department of Health Sciences.
Arbets- och miljömed. kliniken, USÖ.
Lungkliniken, USÖ.
Örebro University, Department of Health Sciences.
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2006 (English)In: Scandinavian Journal of Occupational Therapy, ISSN 1103-8128, E-ISSN 1651-2014, Vol. 13, no 1, p. 4-12Article in journal (Refereed) Published
Abstract [en]

Asthma is a chronic disease affected by environmental factors that may increase symptoms that impact on a persons' well-being. An important issue in occupational therapy is to improve the relationship between a person's functional capacity and the physical environment. The aim of the study was to compare the housing environment of persons with asthma (cases, n=49) and persons without asthma (controls, n=48), with regard to building construction and condition, physical, chemical and biological factors, and cleaning routines. A secondary aim was to compare different types of accommodation within cases and controls. A specialist team, including a construction engineer, a biological scientist, and an occupational therapist, conducted the study. Data were collected using protocols, as well as a number of established technical methods from the field of occupational and environmentsl medicine. The primary results showed no major differences in the housing environment between the two groups. However, in individual homes environmental factors at levels that could increase symptoms were identified. When single-familyhouses were compared with multi-family houses, significant differences were found indicating that preventive interventions may be needed in some single-family houses. Further studies are needed to clarify the person-environment relationship for persons with asthma, focusing on their ability to perform daily activities.

Place, publisher, year, edition, pages
2006. Vol. 13, no 1, p. 4-12
Keywords [en]
environmental factors, housing, occupational therapy, respiratory symptoms
National Category
Social Sciences Interdisciplinary Nursing Occupational Therapy
Research subject
Nursing Science w. Occupational Therapy Focus
Identifiers
URN: urn:nbn:se:oru:diva-2833DOI: 10.1080/11038120510031824OAI: oai:DiVA.org:oru-2833DiVA, id: diva2:134758
Projects
FinEsS-studiesAvailable from: 2007-05-03 Created: 2007-05-03 Last updated: 2018-01-13Bibliographically approved
In thesis
1. Asthma and respiratory symptoms related to the housing environment
Open this publication in new window or tab >>Asthma and respiratory symptoms related to the housing environment
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The overall aim of this dissertation was to study the housing environment with a focus on indoor climate factors which may maintain or worsen respiratory symptoms among persons with asthma.

Quasi-experimental and cross-sectional designs and a case-control approach were used. In Study I data was collected from a consecutive series of patients with asthma (n=21) and in the three other studies from a randomly selected sample, representative of the general population (n=6732). This sample was classified into subgroups (Study II): persons with asthma (n=261), healthy persons (n=5266) and persons with symptoms (n=1205). In Study III persons with asthma (n=49) were compared to persons without asthma (n=48), and the same group, persons with asthma (n=49) was also included in Study IV. Data were gathered using subjective information from diaries and questionnaires as well as objective measurements of medical and environmental factors.

Lung function was improved and there was a tendency for the indoor climate to improve after the removal of textile wall-to-wall carpets or the increase of air exchange rate. No statistically significant differences were found in the housing environment when persons with and without asthma were compared. However in some individual homes, environmental factors at levels that could increase symptoms were identified. In single-family houses higher levels of humidity, insufficient ventilation and the occurrence of house dust mites indicated a less favorable indoor climate compared to multi-family houses. Respiratory symptoms attributed to specific environmental exposures increased in both healthy and unhealthy persons when they reported occurrence of indoor climate risk indicators. No statistically significant associations were found between separate risk indicators, identified by a ‘Housing Environmental-index’, or the frequency of indicators and clinical tests. The lack of significant associations may show that the chosen cut-off levels in the index were too high in reference to persons with asthma and further research is needed to establish relevant cut-off levels.

In some of the investigated houses there was a need for secondary preventive interventions to improve the indoor climate in order to decrease the exposure of allergens and airway irritants. In this dissertation one aspect of the complex relationship between the person and the environment, i.e. accessibility, has been studied. Further research is needed to address the aspect of usability, i.e. the person’s own evaluation of the degree to which they can be in and use the environment.

Place, publisher, year, edition, pages
Örebro: Örebro universitetsbibliotek, 2007. p. 63
Series
Örebro Studies in Care Sciences, ISSN 1652-1153 ; 15
Keywords
Accessibility, adaptation, asthma, housing environment, risk indicators, index, occupational therapy, prevention, respiratory symptoms.
National Category
Nursing
Research subject
Nursing Science; Nursing Science w. Occupational Therapy Focus
Identifiers
urn:nbn:se:oru:diva-1195 (URN)978-91-7668-540-2 (ISBN)
Public defence
2007-05-25, Wilandersalen, M-huset, Universitetssjukhuset, Örebro, 13:00 (English)
Opponent
Supervisors
Available from: 2007-05-03 Created: 2007-05-02 Last updated: 2017-10-18Bibliographically approved

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Frisk, MargotIvarsson, Ann-BrittKamwendo, KittyStridh, Göran

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