Ultraviolet germicidal irradiation of office ventilation systems reduces work-related mucosal and respiratory symptoms - 24/08/11
Abstract |
Question |
What is the effect of ultraviolet germicidal irradiation (UVGI) in office ventilation systems on worker's health and wellbeing?
Study design |
Double blind multiple crossover trial.
Main results |
Ultraviolet germicidal irradiation (UVGI) lights significantly reduced the incidence of overall work-related symptoms (14% of symptoms only reported when UVGI on vs. 18% symptoms only reported only when UVGI off; OR 0.8, 95% CI 0.7 to 0.99). UVGI significantly reduced work-related mucosal and respiratory symptoms but not systemic or musculoskeletal symptoms (OR for mucosal symptoms 0.7, 95% CI 0.6 to 0.9; OR for respiratory symptoms 0.6, 95% CI 0.4 to 0.9; OR for systemic symptoms 1.1, 95% CI 0.9 to 1.3; OR for musculoskeletal symptoms 0.8, 95% CI 0.6 to 1.1). UVGI reduced microbial and endotoxin concentrations on irradiated surfaces within ventilation systems by 99% (95% CI 67% to 100%).
Authors’ conclusions |
UVGI may be a cost-effective method of alleviating work-related symptoms caused by microbial contamination of office ventilation systems.
Le texte complet de cet article est disponible en PDF.Keywords : Occupational diseases, Workplace, Ultraviolet rays, Ventilation systems, Cross-over study
Plan
Abstracted from: Menzies D, Popa J, Hanley JA et al. Effect of ultraviolet germicidal lights installed in office ventilation systems on workers’ health and wellbeing: double-blind multiple crossover trial. Lancet 2003; 362: 1785–1791. |
Vol 8 - N° 3
P. 148-149 - juin 2004 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?