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、精子濃度異常の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の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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A study was conducted in Israel to investigate the association between habits of cell phone usage and semen quality.
Semen quality was assessed using four parameters (volume, concentration, motility and morphology) according to the criteria of the World Health Organization.
|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|
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.