Scientifically, abstinence-only programs have no better results than comprehensive programs. Many supporters of abstinence-only programs favor a specific study of abstinence-only outcomes conducted by the National Campaign to Prevent Teen Pregnancy Through Surveys. The survey results showed that more religious students had more conservative views on sex, causing them to wait longer to have sex. Another study favored by abstinence-only advocates is a 2001 study whose results showed that students who