この研究は、イラン南部の石油化学コンビナートにおいて、職場の磁界測定（IEEE std 644-1994の測定法に準拠）と従業員の睡眠の質および全般的健康状態についての質問票調査を行った。睡眠調査には、Pittsburgh Sleep Quality Index（PSQI）を、全般的健康状態調査には、General Health Quality（GHQ）を用いた。その結果、回答は、8職種の合計で40人から得た；このうち2つの職種の人を参照群、その他をばく露群とした；ばく露群の28％が健康状態が悪いと回答、68％が睡眠障害と診断されていると回答した、などを報告している。
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A study was conducted to determine the possible association between the exposure to extremely low frequency magnetic fields and sleep quality and general health status of workers in substation units of a petrochemical complex in southern Iran.
The participants filled out the questionnaires Pittsburgh Sleep Quality Index and General Health Quality to assess sleep quality and health status (e.g., somatic symptoms, anxiety, insomnia, social dysfunction and severe depression).
| グループ | 説明 |
|---|---|
| 参照集団 1 | workers at control rooms and engineering rooms: not exposed |
| 集団 2 | workers at high voltage substations: exposed |
| タイプ | 値 |
|---|---|
| 合計 | 40 |
The highest measured magnetic flux density was 49.90 µT.
Overall, 5 out of 18 workers (28%) of the exposed group suffered from poor health status and 11 workers (61%) were diagnosed with a sleep disorder. All 22 members in control group were in good health condition and only 1 worker (4.5%) of them had undesirable sleep quality. However, no significant association was observed between occupational exposure level to extremely low frequency magnetic fields and sleep quality and general health condition of the workers of a petrochemical complex.
The results are based on a low sample size.
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