No Matter the Approach, Sex Ed Works

Teenagers who receive any kind of sex education -- whether it's comprehensive or abstinence-only -- are more likely to delay sexual intercourse until after they turn 15, according to a new report.

But some sexual health experts worry that the study's failure to distinguish between comprehensive and abstinence-only approaches could give the public the wrong idea about the efficacy of simply telling kids not to have sex.

In the study, released Wednesday in the Journal of Adolescent Health, researchers from the Center for Disease Control and Prevention analyzed responses from more than 2,000 teenagers between the ages of 15 and 19 to the 2002 National Survey of Family Growth.

They found that boys in this age bracket who received formal sex education -- either in schools, churches or community organizations -- were 71 percent less likely to have sex before age 15. Girls aged 15 to 19 who received formal sex education were 59 percent less likely to have sex before age 15.

Formal sex education also seems to lead to safer sex, the study found. Males attending school who had received sex education were almost three times more likely to use birth control the first time they had sex -- though no such associations were found among females.

"Formal sex education was particularly beneficial for youth who are traditionally considered to be at high risk for adverse sexual health outcomes, such as sexually transmitted diseases or unplanned pregnancies," says lead study author Trisha Mueller, an epidemiologist at the CDC's Division of Reproductive Health.

"Sex education should be continued to be supported in formal settings, such as schools, and to be the most effective, should occur before youth engage in sexual intercourse for the first time."

Sexual health experts not affiliated with the study say it is an important addition to continuing evidence that sex education works to promote healthier behaviors.

"This study expands on studies that have shown that sexuality education can delay the onset of sexual intercourse -- once again dispelling the myth that early sexuality education might increase sexual activity," explains Eli Coleman, director of the program in human sexuality at the University of Minnesota Medical School. "This study shows that sexuality education leads to more responsible sexual behavior."

Pepper Schwartz, professor of sociology at the University of Washington in Seattle, agrees.

"I am thrilled to have this study because it confirms, in some ways, the bottom-line fact: talking about sex, and giving information about sex, makes kids more thoughtful about it and more likely to be able to form a moral code and plan of action -- rather than unconscious reaction."

Abstinence Only vs. Comprehensive

But the fact that the study does not differentiate between comprehensive and abstinence-only programs gives some experts pause.

"It is unfortunate that this study did not look carefully at the potential differences in efficacy between comprehensive and abstinence-only sexuality education," Coleman says.

Mueller says that since the analysis was based on the 2002 survey data -- which asked participants whether they had "ever received any formal instruction on how to say 'no' to sex" and whether they had ever received formal education on birth control methods -- the researchers' ability to distinguish between types of sex education was limited.

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