研究のタイプ: 疫学研究 (observational study)

[携帯電話の使用習慣と精子の質:この問題は注目に値するか?] epidem.

Habits of cell phone usage and sperm quality - does it warrant attention?

掲載誌: Reprod Biomed Online 2015; 31 (3): 421-426

この研究は、男性106人に、質問票調査(人口学的データ、携帯電話の使用特性)と精子分析を実施し、携帯電話の使用特性と精子の質の間の関連を分析した。その結果、 ≥1時間/日の通話および充電中の通話を報告した群では、精子濃度異常発生率の高さとの有意な関連が見られた;保持中の携帯電話の位置が鼠径部から≤50 cmと報告した群では、有意ではなかったが精子濃度異常発生率の高さとの関連が見られた、と報告している。

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研究の目的(著者による)

A study was conducted in Israel to investigate the association between habits of cell phone usage and semen quality.

詳細情報

Semen quality was assessed using four parameters (volume, concentration, motility and morphology) according to the criteria of the World Health Organization.

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 total daily talking time: ≤ 1 h
集団 2 total daily talking time: > 1 h
参照集団 3 talk while charging the device: no
集団 4 talk while charging the device: yes
参照集団 5 distance from groin when not in use: > 50 cm
集団 6 distance from groin when not in use: ≤ 50 cm

調査対象集団

調査規模

タイプ
合計 106
評価可能 80
統計学的分析方法:

結論(著者による)

No associations were found between any of the factors investigated and between semen volume and motility. Abnormal semen morphology was found in only one man and therefore not further considered.
Talking for more than 1 h/day and during device charging was associated with lower semen concentration. Among men who reported holding their phones less than 50 cm from the groin, a non-significantly lower sperm concentration was found. Multivariate analysis revealed that talking while charging the device (OR 4.13, CI 1.28-13.3) and smoking were risk factors for lower sperm concentration (OR 3.04, CI 1.1-8.13).
The authors conclude that certain aspects of mobile phone usage may bear adverse effects on sperm concentration.

研究助成

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