New data from health clinics in The Netherlands shows 12% of people practice swinging, indicating far more couples swing (consensually engage in sex with different partners) than believed. In America, estimates put swingers at 2% of the population, but if the Dutch numbers are any indication, American swingers are way more prevalent. Also, Cory Silverberg writes, "swingers, particularly swingers over 45, had a higher prevalence of STIs when tested at the community clinics."
In fact, swingers "had the second highest rate of combined STIs" among the groups considered, which "included men who have sex with men, sex workers, [and] straight people who weren't swingers." Evidently, STIs don't only target sex workers, despite contrary claims from anti-porn activists. "The researchers rightly point out that swingers may be a population public health folks should start paying some attention to," Cory says, offering common-sense advice about STI risk.