A new survey of teens in Colorado and 32 other states suggests parental notification laws won't curb underage sex.
It also says the laws could cause a troubling number of girls to engage in unsafe intercourse.
The survey is by The Alan Guttmacher Institute and is in today's Journal of the American Medical Association. The institute is an advocacy group that supports reproductive choice.
Nearly one in five teen girls were surveyed at federally funded family planning clinics nationwide. They said they would either use no birth control or unreliable methods if parental-notification laws were enacted. Only seven percent said they would stop having sex.