Effects on Health-Related Symptoms of Carpet Removal and Ventilation in Eleven Schools-A Controlled Intervention Study.

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Reports on an intervention study was carried out in eleven Norwegian elementary schools. Three schools with poor ventilation standard, four schools with carpets, and four control schools participated. Carpets were replaced by vinyl flooring and the poor ventilation systems were upgraded. 1100 children aged twelve to thirteen years and 400 teachers were included in the study. A baseline registration of health related symptoms were performed before the intervention, and repeated afterward. Compared to control schools, the results from the intervention schools showed that the number of health related symptoms were reduced for both children with and without hypersensitivity. (Includes four references.)
Mathisen, H.M.; Jenssen, J.A.; Johnsen, R.
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