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  • Title: Relationship between indoor chemical concentrations and subjective symptoms associated with sick building syndrome in newly built houses in Japan.
    Author: Takigawa T, Wang BL, Saijo Y, Morimoto K, Nakayama K, Tanaka M, Shibata E, Yoshimura T, Chikara H, Ogino K, Kishi R.
    Journal: Int Arch Occup Environ Health; 2010 Feb; 83(2):225-35. PubMed ID: 19902238.
    Abstract:
    OBJECTIVES: This study explored possible associations between chemical substances and sick building syndrome (SBS)-type symptoms of residents living in new houses in Japan. METHODS: We randomly sampled 5,709 newly built conventional homes. In the end, 1,479 residents in 425 households completed a questionnaire survey and agreed to environmental monitoring for indoor aldehydes and volatile organic compounds (VOCs) to be conducted in their homes. If the residents had complained about at least one SBS-related symptom, they were classified as suffering from SBS. Multiple logistic regression analysis was used to select predictive chemical factors of SBS symptoms. RESULTS: About 14% of the subjects suffered from SBS. Many aldehydes and VOCs were associated factors of optical, nasal, and gular symptoms in univariate analysis. After adjustment for other possible risk factors, formaldehyde dose-dependently showed to be a significant risk factor for SBS. Several chemicals had tendency to be associated with SBS symptoms. CONCLUSIONS: Chemicals detected in Japanese newly built houses tend to increase the risk of subjective symptoms in residents suffering from SBS.
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