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Occupational therapy adaptation of the home environment in Sweden for people with asthma
Örebro universitet, Hälsovetenskapliga institutionen.
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2002 (Engelska)Ingår i: Occupational Therapy International, ISSN 0966-7903, Vol. 9, nr 4, s. 294-311Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The purpose of this study was to evaluate changes of lung function, respiratory symptoms and indoor air quality after reducing allergens and indoor pollutants in the home environment of people with asthma (n = 21). A quasi-experimental pre-/post-test design with one group of participants was implemented. The interventions included removal of wall-to-wall carpets (n = 14) or improvement of indoor air exchange (n = 7). Participants' lung function, symptoms, medication and type-1 allergy were recorded before and after the intervention. The indoor environment was monitored at house calls by an occupational therapist using conventional physical, biological and chemical methods. There was an improvement of lung function evidenced by an increased mean Forced Expiratory Volume (FEV(1) %) and a reduction of airway obstruction (reversibility, % of baseline value), which indicate an improved asthmatic condition. Lung function assessed by vital capacity, bronchial hyper-responsiveness, mean of Peak Expiratory Flow, symptom score and medicine consumption did not change significantly. There was a tendency that the amount of airborne dust (p=0.06) was reduced in the indoor environment. Relative humidity, carbon dioxide, formaldehyde and house dust mite levels had decreased after the intervention, but not significantly. Asthma symptoms related to the home environment are probably caused by several factors. When people with asthma suffer from increased symptoms in the home, house calls should be performed routinely. Dust samples from beds and carpets for analysis of allergens give information about exposure, and environmental assessments should be performed before interventions. Occupational therapists can make a valuable contribution in evaluating the home environment and suggesting ergonomic adaptations for individuals with asthma.

Ort, förlag, år, upplaga, sidor
2002. Vol. 9, nr 4, s. 294-311
Nationell ämneskategori
Omvårdnad
Forskningsämne
Vårdvetenskap med inriktning arbetsterapi
Identifikatorer
URN: urn:nbn:se:oru:diva-2831DOI: 10.1002/oti.170OAI: oai:DiVA.org:oru-2831DiVA, id: diva2:134756
Tillgänglig från: 2007-05-03 Skapad: 2007-05-03 Senast uppdaterad: 2017-10-18Bibliografiskt granskad
Ingår i avhandling
1. Asthma and respiratory symptoms related to the housing environment
Öppna denna publikation i ny flik eller fönster >>Asthma and respiratory symptoms related to the housing environment
2007 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
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.

Ort, förlag, år, upplaga, sidor
Örebro: Örebro universitetsbibliotek, 2007. s. 63
Serie
Örebro Studies in Care Sciences, ISSN 1652-1153 ; 15
Nyckelord
Accessibility, adaptation, asthma, housing environment, risk indicators, index, occupational therapy, prevention, respiratory symptoms.
Nationell ämneskategori
Omvårdnad
Forskningsämne
Vårdvetenskap; Vårdvetenskap med inriktning arbetsterapi
Identifikatorer
urn:nbn:se:oru:diva-1195 (URN)978-91-7668-540-2 (ISBN)
Disputation
2007-05-25, Wilandersalen, M-huset, Universitetssjukhuset, Örebro, 13:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2007-05-03 Skapad: 2007-05-02 Senast uppdaterad: 2017-10-18Bibliografiskt granskad

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