Raise awareness of environmental health issues in order to better protect our children and future generations.

EMF Studies

22 April 2016

Effects of Cell Phone Use on Semen Parameters: Results from the MARHCS Cohort Study in Chongqing, China

"Our results showed that certain aspects of cell phone use may negatively affect sperm quality in men by decreasing the semen volume, sperm concentration, or sperm count, thus impairing male fertility."

Effects of cell phone use on semen parameters: Results from the MARHCS cohort study in Chongqing, China
Environment International, Volume 91, May 2016, Pages 116–121

Guowei Zhanga, Huan Yana, Qing Chena, Kaijun Liua, Xi Linga, Lei Suna, Niya Zhoua, Zhi Wanga,
Peng Zoua, Xiaogang Wanga, Lu Tana, Zhihong Cuia, Ziyuan Zhoub, Jinyi Liua, Lin Aoa, Jia Caoa

Highlights
  • Certain aspects of cell phone use negatively affect semen quality.
  • Internet use via cellular networks has become an important risk to semen quality.
  • The use of 3G or more advanced networks might have less damage to human sperm.
  • Recruiting subjects from a general population makes the study typical and relevant.
Abstract



Epidemiological and experimental evidence for detrimental effects of cell phone use on semen quality is still equivocal. And that recruiting participants from infertility clinic not from general population may raise the possibility of a selection bias. To investigate effects of cell phone use on semen parameters in a general population,We screened and documented the cell phone use information of 794 young men from the Male Reproductive Health in Chongqing College students (MARHCS) cohort study in 2013, followed by 666 and 568 in 2014 and 2015, respectively. In the univariate regression analyses, we found that the daily duration of talking on the cell phone was significantly associated with decreased semen parameters, including sperm concentration [β coefficient = − 6.32% per unit daily duration of talking on the cell phone (h); 95% confidence interval (CI), − 11.94, − 0.34] and total sperm count (− 8.23; 95% CI, − 14.38, − 1.63) in 2013; semen volume (− 8.37; 95% CI, − 15.93, − 0.13) and total sperm count (− 16.59; 95% CI, − 29.91, − 0.73) in 2015]. Internet use via cellular networks was also associated with decreased sperm concentration and total sperm counts in 2013 and decreased semen volume in 2015. Multivariate analyses were used to adjust for the effects of potential confounders, and significant negative associations between internet use and semen parameters remained. Consistent but nonsignificant negative associations between talking on the cell phone and semen parameters persisted throughout the three study years, and the negative association was statistically significant in a mixed model that considered all three years of data on talking on the cell phone and semen quality. Our results showed that certain aspects of cell phone use may negatively affect sperm quality in men by decreasing the semen volume, sperm concentration, or sperm count, thus impairing male fertility.

No comments:

Post a Comment