The new analysis of data from a large federal survey found that more than half of youths became sexually active before marriage regardless of whether they had taken a "virginity pledge," but that the percentage who took precautions against pregnancy or sexually transmitted diseases was 10 points lower for pledgers than for non-pledgers. <ref>[http://scienceblogs.com/dispatches/2009/01/another_study_shows_failure_of.php</ref>}} | The new analysis of data from a large federal survey found that more than half of youths became sexually active before marriage regardless of whether they had taken a "virginity pledge," but that the percentage who took precautions against pregnancy or sexually transmitted diseases was 10 points lower for pledgers than for non-pledgers. <ref>[http://scienceblogs.com/dispatches/2009/01/another_study_shows_failure_of.php</ref>}} |