Before revision: Compared with countries with higher teenage birth rates, the Dutch have a higher average age at first intercourse and increased levels of contraceptive use ( including the "double Dutch" method of using both a hormonal contraception method and a condom ) .
After revision: Compared with countries with higher teenage birth rates, the Dutch have a higher average age at first intercourse and increased levels of contraceptive use , including the "double Dutch" method of using both a hormonal contraception method and a condom .