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Westergren, Karl-Erik
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Publications (7 of 7) Show all publications
Nordlöf, H., Wijk, K. & Westergren, K.-E. (2015). Perceptions of work environment priorities: Are there any differences by company size? — An ecological study. Work: A journal of Prevention, Assesment and rehabilitation, 52(3), 697-706
Open this publication in new window or tab >>Perceptions of work environment priorities: Are there any differences by company size? — An ecological study
2015 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 52, no 3, p. 697-706Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Earlier studies suggest that the quality of handling occupational health and safety (OHS) activities differs between companies of different sizes. Company size is a proxy variable for other variables affecting OHS performance.

OBJECTIVE: The objective of this study was to investigate if there is an association between company size and perceptions of work environment prioritizations.

METHODS: Data from 106 small- and medium-sized Swedish manufacturing companies was collected. One manager and one safety delegate at each company rated different aspects of their companies' work environment prioritizations with a 43-item questionnaire. Ratings were aggregated to a summary statistic for each company before analysis.

RESULTS: No significant differences in perceptions of priority were found to be associated with company sizes. This is in contrast to earlier studies of objective differences. The respondents in small companies, however, showed significantly greater consensus in their ratings.

CONCLUSIONS: Company size does not appear to be associated with perceptions of work environment prioritizations. Company size is an important proxy variable to study in order to understand what factors enable and obstruct safe and healthy workplaces. The work presented here should be viewed as an initial exploration to serve as direction for future academic work.

Keywords
Company size, Occupational health and safety (OHS), Ergonomics, Perceptions, Consensus
National Category
Work Sciences Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hig:diva-16277 (URN)10.3233/WOR-152123 (DOI)000366059600028 ()26409368 (PubMedID)2-s2.0-84948731955 (Scopus ID)
Available from: 2014-02-06 Created: 2014-02-06 Last updated: 2018-03-13Bibliographically approved
Toomingas, A., Hagberg, M., Heiden, M., Richter, H., Westergren, K.-E. & Wigaeus Tornqvist, E. (2014). Risk factors, incidence and persistence of symptoms from the eyes among professional computer users. Work: A journal of Prevention, Assesment and rehabilitation, 47(3), 291-301
Open this publication in new window or tab >>Risk factors, incidence and persistence of symptoms from the eyes among professional computer users
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2014 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 47, no 3, p. 291-301Article in journal (Refereed) Published
Abstract [en]

BACKGROUND:

Symptoms from the eyes are common among computer users. Knowledge is scarce about these problems, however.

OBJECTIVES:

The aim was to study risk-factors, incidence and persistence of eye-symptoms among professionally active computer users.

METHODS:

This was a questionnaire based prospective study where 1283 males and females from different professions and companies answered a baseline questionnaire about individual factors and working conditions, e.g. duration of daily computer work, comfort of screen work, psychosocial factors. Subjects were at baseline and 10 follow-ups asked about the number of days with eye-symptoms during the preceding month.

RESULTS:

The incidence-rate of symptoms persisting minimum three days was 0.38/person-year. A multivariate Hazard-ratio model showed significant associations with extended continuous computer work, tasks with high demands on eye-hand coordination, low level of control, visual discomfort, female sex and nicotine use. Eye-symptoms at baseline was a strong risk factor for new symptoms.

CONCLUSION:

The incidence of eye-symptoms among professional computer users is high and related to both individual and work-related factors. The organization of computer work should secure frequent breaks from near-work at the computer screen. The severity of vision-related problems could in field studies be quantified by asking for the persistence of symptoms.

Keywords
Office work, eye strain, prospective study, visual ergonomics
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-15249 (URN)10.3233/WOR-131778 (DOI)000333080700002 ()24284674 (PubMedID)2-s2.0-84900437723 (Scopus ID)
Available from: 2013-09-15 Created: 2013-09-15 Last updated: 2018-03-13Bibliographically approved
Toomingas, A., Hagberg, M., Heiden, M., Richter, H., Westergren, K. E. & Wigaeus Tornqvist, E. (2012). Incidence and risk factors for symptoms from the eyes among professional computer users. Work: A journal of Prevention, Assesment and rehabilitation, 41(Suppl. 1), 3560-3562
Open this publication in new window or tab >>Incidence and risk factors for symptoms from the eyes among professional computer users
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2012 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 41, no Suppl. 1, p. 3560-3562Article in journal (Refereed) Published
Abstract [en]

Personal computers are used by a majority of the working population in their professions. Little is known about risk-factors for incident symptoms from the eyes among professional computer users. The aim was to study the incidence and risk-factors for symptoms from the eyes among professional computer users. This study is a part of a comprehensive prospective follow-up study of factors associated with the incidence of symptoms among professional computer users. 1531 computer users of different professions at 46 companies were invited, whereof 1283 answered a baseline questionnaire (498 men; 785 women) and 1246 at least one of 10 monthly follow-up questionnaires. The computer work-station and equipment were generally of a good standard. The majority used CRT displays. During the follow-up period 329 subjects reported eye symptoms. The overall incidence rate in the whole study group was 0.38 per person-year, 0.23 in the subgroup of subjects who were symptom free at baseline and 1.06 among subjects who reported eye symptoms at baseline. In the bivariate analyses significant associations were found with all explanatory variables, except BMI. The reduced multivariate model showed significant associations with extended computer work, visual discomfort (dose-response), eye symptoms at baseline (higher risk), sex (women=higher risk) and nicotine use. The incidence of eye problems among professional computer users is high and related to both individual and work-related factors.

Keywords
office work, eye strain, prospective study
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-11555 (URN)10.3233/wor-2012-0634-3560 (DOI)000306361803109 ()2-s2.0-84859863852 (Scopus ID)
Note

Incidence and risk factors for symptoms from the eyes among professional computer users

Available from: 2012-02-23 Created: 2012-02-23 Last updated: 2018-03-13Bibliographically approved
Richter, H., Hagberg, M., Toomingas, A., Westergren, K.-E., Heiden, M. & Wigaeus Tornqvist, E. (2012). Interrelationship between incident eye-and neck/scapular area symptoms. In: : . Paper presented at NES2012 The 44th Annual Nordic Ergonomics Society Conference.
Open this publication in new window or tab >>Interrelationship between incident eye-and neck/scapular area symptoms
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2012 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Health Sciences
Identifiers
urn:nbn:se:hig:diva-12674 (URN)
Conference
NES2012 The 44th Annual Nordic Ergonomics Society Conference
Available from: 2012-09-11 Created: 2012-08-27 Last updated: 2018-12-03Bibliographically approved
Westergren, K.-E. (2000). Energy use for heating in houses with a heat pump. Gävle: Högskolan i Gävle/Sandviken
Open this publication in new window or tab >>Energy use for heating in houses with a heat pump
2000 (English)Report (Other academic)
Place, publisher, year, edition, pages
Gävle: Högskolan i Gävle/Sandviken, 2000. p. 36
Series
Working Paper / Högskolan Gävle-Sandviken, ISSN 1102-5476 ; 47
National Category
Engineering and Technology
Identifiers
urn:nbn:se:hig:diva-28555 (URN)
Available from: 2018-11-20 Created: 2018-11-20 Last updated: 2018-11-20Bibliographically approved
Westergren, K.-E. (1999). Rehabilitering av långtidssjukskrivna: En studie av fyra projekt i Gävleborgs län 1992-1995. Gävle: Högskolan i Gävle
Open this publication in new window or tab >>Rehabilitering av långtidssjukskrivna: En studie av fyra projekt i Gävleborgs län 1992-1995
1999 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Gävle: Högskolan i Gävle, 1999. p. 44
Series
RD-report, ISSN 1403-8749 ; 2
National Category
Probability Theory and Statistics
Identifiers
urn:nbn:se:hig:diva-2273 (URN)
Available from: 2007-02-20 Created: 2007-02-20 Last updated: 2018-03-13Bibliographically approved
Westergren, K.-E. & Waller, T. (1998). Virtual housing laboratory: A system for simulating the energy use for heating in single family houses. Gävle: University of Gävle
Open this publication in new window or tab >>Virtual housing laboratory: A system for simulating the energy use for heating in single family houses
1998 (English)Report (Other academic)
Place, publisher, year, edition, pages
Gävle: University of Gävle, 1998. p. 33
Series
Working paper, ISSN 1403-8757 ; 1
National Category
Energy Systems
Identifiers
urn:nbn:se:hig:diva-18983 (URN)
Available from: 2015-02-12 Created: 2015-02-12 Last updated: 2018-11-05Bibliographically approved
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