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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Acknowledgments
This study is supported by a Health Science Research Grant for Research on Environmental Health from the Ministry of Health, Labour and Welfare of Japan. We are extremely grateful to the late professor Shohei Kira (Okayama University) for his tremendous contribution. We also thank Ayako Kanazawa and Atsuko Araki for data handling and Noriko Sakano and Yukie Yamasaki for data acquisition.
Conflict of interest
The authors declare that they have no conflict of interest.
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Appendix
Appendix
The questionnaire used in this study conducted in 2004 is as follows.
Questions about indoor climate to be answered by one member of the household
Questions about personal characteristics and health complaints to be answered by every member of the household
Please answer the following questions. If any member of the household can not read or write, we ask that another family member complete these questions on their behalf.
Have suffered from any of the following health complaints during the last 3 months? (Respond “yes, always,” “yes, sometimes,” or “no, never”: “Always” = at least three times a week, and “sometimes” = once or twice a week. If you answer “yes,” please indicate whether you attribute the symptom to your home environment.
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1.
Itching, burning, or irritation of the eyes
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2.
Irritated, stuffy, or runny nose
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3.
Hoarse, dry throat
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4.
Coughing, wheezing
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5.
Dry or flushed facial skin
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6.
Scaling/itching scalp or ears
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7.
Dry, itching, red skin of hands
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8.
Fatigue
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9.
Feeling heavy headed
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10.
Headache
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11.
Nausea/dizziness
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12.
Difficulties concentrating
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Takigawa, T., Wang, BL., Saijo, Y. et al. Relationship between indoor chemical concentrations and subjective symptoms associated with sick building syndrome in newly built houses in Japan. Int Arch Occup Environ Health 83, 225–235 (2010). https://doi.org/10.1007/s00420-009-0475-9
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DOI: https://doi.org/10.1007/s00420-009-0475-9