研究のタイプ: 疫学研究 (observational study)

[石油化学コンビナートで超低周波磁界にばく露している従業員の睡眠の質と全般的健康状態] epidem.

Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex.

掲載誌: J Environ Health Sci Eng 2014; 12: 78

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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研究の目的(著者による)

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.

詳細情報

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).

影響評価項目/リスク推定のタイプ

リスク推定のタイプ:

ばく露

ばく露評価

ばく露集団

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

調査対象集団

調査規模

タイプ
合計 40
統計学的分析方法:

結論(著者による)

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.

研究の限界(著者による)

The results are based on a low sample size.

研究助成

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