Prevalence of the sick building syndrome symptoms in office workers before and after being exposed to a building with an improved ventilation system.
To find if the prevalence of symptoms associated with sick building syndrome decreased among office workers after moving to a building with improved ventilation (after controlling for potential confounders).
Methods-Workers in five buildings in 1991 all moved in 1992 into a single building with improved design, operation, and maintenance of the ventilation system.
All buildings had sealed windows with mechanical ventilation, air conditioning, and humidification.
Workers completed a self administered questionnaire during normal working hours in February 1991 and February 1992.
The questionnaire encompassed symptoms of the eyes, nose and throat, respiratory system, skin, fatigue, headache, and difficulty concentrating, personal, psychosocial, and work related factors.
During normal office hours of the same week environmental variables were measured.
The study population comprised 1390 workers in 1991 and 1371 workers in 1992 who represented more than 80% of the eligible population.
The prevalence of most symptoms decreased when workers moved to the new building : skin (54%), respiratory system (53%), nose and throat (46%), fatigue (44%), headache (37%), eyes (23%). These findings were all significant and remained generally similar after controlling for personal, psychosocial, and work related factors.
Furthermore, more than 60% of workers symptomatic in 1991 were asymptomatic in 1992 for all types of symptoms.
In contrast, less than 15% of ...
Mots-clés Pascal : Bâtiment malsain, Epidémiologie, Homme, Canada, Amérique du Nord, Amérique, Bureau, Lieu travail, Exposition professionnelle, Médecine travail, Questionnaire, Ventilation, Syndrôme bâtiment malsain
Mots-clés Pascal anglais : Sick building, Epidemiology, Human, Canada, North America, America, Office, Work place, Occupational exposure, Occupational medicine, Questionnaire, Ventilation, Sick building syndrome
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0200580
Code Inist : 002B03M02. Création : 199608.