"...significantly more boys and 9th graders said that they would have sex in the next 12 months, and significantly more girls and 8th graders said they would have sex before completing high school. Over the year, the percentage of all students who reported they had experienced sexual intercourse increased from 5.8% to 12.4%. When examined by gender and age group, the increases were statistically significant for 8th graders and for girls.

Some positive benefits included increased parent-child communication, and apparently, the plan was well-implemented administratively.

Via the Feminist Majority Foundation.