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divendres, 10 de juny de 2016

Los adolescentes de EEUU beben y se drogan con menos frecuencia, casi no fuman y tienen mucho menos sexo


Among a decline in several risky behaviors, a sharp decline in sexual activity stood out to researchers.

The survey found 41 percent said they had ever had sex, after it had been about 47 percent over the previous decade. It also found marked declines last year in the proportion of students who said had sex recently, had sex before they were 13, and students who had had sex with four or more partners.

The results come from a study conducted every two years by the Centers of Disease Control and Prevention. The surveys included 16,000 students at 125 schools, both public and private. Participation was voluntary and required parental permission, but responses were anonymous. Results were released Thursday.

National surveys have seen a leveling off in recent years in the proportion of kids who said they had sex, after earlier declines. That led researchers to largely attribute continuing declines in teen pregnancies and abortions to more and better use of birth control.

But the new numbers suggest less sex is a factor, too. The drops are surprising enough that government officials said they'd like to see what the next survey shows to make sure it's not a statistical blip.
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