HARTFORD - A new survey finds that about 2/3 of Connecticut's high school seniors say they have had sex within the last year.

The state's 2009 Youth Risk Behavior Survey finds that just 59% of those teens say they used a condom.

The survey says about one in four high school freshman say they have had sex.

The results have health officials worried that not enough teens are taking precautions against STDs and pregnancy, and encourage parents to talk to their children about proper protection.