“…The total funding of such programs nearly tripled, from $60 million in 1998 to $168 million in 2006 [8]. The abstinence-only education program has been criticized as one of the reasons for increasing teen birth rates because of not only its ineffectiveness in reducing sexual activity, but also the exclusion of effective sex education including contraceptive use that has been proven to reduce teen birth rates [9,10]. However, except for a few small-scale evaluations, there is no evidence indicating that abstinence-only programs cause increased teen birth rates at the population level [11,12].…”