Researchers measured sexual function based on in-person interviews using a standard male sexual function inventory that measures four categories of male sexual function including erectile function, ejaculation capability, sexual desire, and overall satisfaction with sex life.
After adjusting for age, education, marital status, current smoking status, a history of chronic diseases and exposure to other chemicals, and employment history, the researchers found the BPA-exposed workers had a significantly higher risk of sexual dysfunction compared to the unexposed workers.
The BPA-exposed workers had a nearly four-fold increased risk of reduced sexual desire and overall satisfaction with their sex life, greater than four-fold increased risk of erection difficulty, and more than seven-fold increased risk of ejaculation difficulty.
A dose-response relationship was observed with an increasing level of cumulative BPA exposure associated with a higher risk of sexual dysfunction. Furthermore, compared to the unexposed workers, BPA-exposed workers reported significantly higher frequencies of reduced sexual function within one year of employment in the BPA-exposed factories.
Other authors on this study include: X. Weng, Ph.D., J.R. Ferber, MPH, and L.J. Herrinton of the Kaiser Permanente Division of Research; Z. Zhou, Ph.D., MD, Y. He, Ph.D., and T. Wu MD, Ph.D. of the Department of Occupational Health and Toxicology, School of Public Health & WHO Collaborating Center for Occupational Health, Fudan University, Shanghai, China; D. Qing, , M. Miao, PhD, J. Wang, Ph.D, Q. Zhu, MD, E. Gao, MD, MPH, Ph.D., and W. Yuan of Shanghai Institute of Planned Parenthood Research and National Population & Family Planning Key Laboratory of Contraceptive Drugs and Devices; and H. Checkoway, Ph.D. of Department of Environmental Health, University of Washington, Seattle.
|SOURCE Kaiser Permanente|
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