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Phase 1 of the California Healthy Building Study: A Summary

Authors

  • William J. Fisk,

    1. Indoor Environment Program, Lawrence Berkeley Laboratory, Building 90, Room 3058, Berkeley, California 94720, USA
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  • Mark J. Mendell,

    1. Indoor Environment Program, Lawrence Berkeley Laboratory, Building 90, Room 3058, Berkeley, California 94720, USA
    2. Health Investigation Branch, California Department of Health Services, 5900 Hollis St., Emeryville, California 94608, USA
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    • 3

      Present address is Industrywide Studies Branch, National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA

  • Joan M. Daisey,

    1. Indoor Environment Program, Lawrence Berkeley Laboratory, Building 90, Room 3058, Berkeley, California 94720, USA
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  • David Faulkner,

    1. Indoor Environment Program, Lawrence Berkeley Laboratory, Building 90, Room 3058, Berkeley, California 94720, USA
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  • Alfred T. Hodgson,

    1. Indoor Environment Program, Lawrence Berkeley Laboratory, Building 90, Room 3058, Berkeley, California 94720, USA
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  • Matty Nematollahi,

    1. Indoor Environment Program, Lawrence Berkeley Laboratory, Building 90, Room 3058, Berkeley, California 94720, USA
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  • Janet M. Macher

    1. Indoor Air Quality Program, Air and Industrial Hygiene Laboratory, California Department of Health Services, 2151 Berkeley Way, Berkeley, California 94720, USA
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Abstract

Twelve public office buildings were selected for a study of relationships between worker's health symptoms and a number of building, workspace, job, and personal factors. Three buildings were naturally ventilated, three were mechanically ventilated, and six were air conditioned. Information on the prevalences of work-related symptoms, demographics, and job and personal factors were determined via a questionnaire completed by 880 occupants. Several indoor environmental parameters were measured. Logistic regression models were used to evaluate associations between symptom prevalences and features of the buildings, indoor environments, jobs, and personal factors. A substantial fraction of the occupants in these typical office buildings reported frequent work-related symptoms. The occupants of the mechanically ventilated and air conditioned buildings had sipifcantly more symptoms than occupants of the naturally ventilated buildings after adjustment for confounding factors. Increased prevalences of some symptoms were associated with several job and workspace factors including: presence of carpet, increased use of carbonless copy paper and photocopiers, space sharing, and distance from a window

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