疫学研究 (observational study)

[電磁界を原因と考える特発性環境不耐症における精神症状および健康関連QOL] epidem.

Psychological symptoms and health-related quality of life in idiopathic environmental intolerance attributed to electromagnetic fields

著者: Kjellqvist A, Palmquist E, Nordin S

掲載誌: J Psychosom Res 2016; 84: 8-12

この研究は、電磁界を原因と考える特発性環境不耐症の人（IEI-EMF群：n=114）と人口ベースからの標本（対照群：n=104）を対象に、精神症状評価チェックリスト（SCL-90：6つの下位尺度）および健康関連QOL（HRQoL）を評価する簡易版健康調査票（SF-36：8つの下位尺度）を用いた調査を行った。その結果、SCL-90下位尺度のうち、強迫性障害、対人過敏、敵意、恐怖症的不安、妄想様観念は、対照群に比べIEI-EMF群で有意に高スコアであり、残りの精神病性症状は同様の差の傾向のみが見られた；HRQoLの下位尺度のうち、身体機能、社会生活機能、精神的な役割制限、全体的健康感、活力、体の痛み、心の健康は、対照群に比べIEI-EMF群で低スコアであった；IEI-EMFは、多様な精神症状および低HRQoLに関連することが示された、と報告している。

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研究の目的(著者による)

A cross-sectional study was conducted in Sweden to evaluate psychological symptoms and health-related quality of life (HRQoL) in persons who attribute health problems to electromagnetic fields.

詳細情報

Psychological symptoms were assessed with 6 subscales of the Symptom Checklist 90 (SCL-90) and health-related quality of life (HRQoL) with 8 subscales of the SF-36 Health Survey.
Results from the anxiety, depression, and somatization subscales of the Symptom Checklist 90 have been published by Johansson et al. (2010)

影響評価項目／リスク推定のタイプ

psychological symptoms (obsessive–compulsive, interpersonal sensitivity, hostility, phobic anxiety, paranoid ideation, psychoticism) and health-related quality of life (vitality, physical functioning, bodily pain, general health perceptions, physical role functioning, emotional role functioning, social role functioning, mental health)

リスク推定のタイプ:

有病率

ばく露

- 磁界
- EMF全般
- PC/TVモニタ
- その他の家庭電気機器
- 移動体通信システム
- 携帯電話

ばく露評価

質問票: electrical devices which induce symptoms

調査対象集団

グループ:
- 男性
- 女性
観察期間: not stated
調査地域: Sweden

調査規模

タイプ	値
合計	218

その他:

114 partipants with IEI-EMF and 104 population-based controls without symptoms

統計学的分析方法:

カイ二乗検定
t-test, Mann-Whitney test, Spearman correlation test, Bonferroni correction for multiple testing

結論(著者による)

Significantly higher scores were found on obsessive/compulsive behavior, interpersonal hypersensitivity, hostility, phobic anxiety, paranoid thoughts in the IEI-EMF group compared to control, whereas the difference for psychoticism was non-significant. Furthermore, significant poorer health-related quality of life in the IEI-EMF group, compared to the control group, was found regarding physical and social functioning, physical and emotional role limitations, general health, vitality, bodily pain, and mental health. Scores on several of the SCL-90 subscales were found to correlate negatively and significantly with scores on several of the SF-36 scales in both groups, i.e. psychological symptoms went along with poor health-related quality of life.
The authors conclude that IEI-EMF is associated with various types of psychological symptoms and with poor health-related quality of life.

研究助成

Center for Environmental Research (CMF), Umea University, Sweden