done so in 1980–1984.3 Since the condom is widely available and does not require a visit to a provider, the rapid increase in its use at first intercourse suggests that young women and men may be relying less on family planning providers as their first source of protection against pregnancy. An analysis of 1982 NSFG data determined that 17% of sexually active women aged 15–24 in 1982 had visite...

The theory of collocational networks adopts a textual definition of the phenomenon ofcollocation in an electronic corpus. The networks move out from a central node exploring thesignificant word associations of both base and collocate. This is done by measuring statisticalsignificance using mutual information. Working within a carefully-constructed corpus based on adiscourse comm...

and other STDs. Men in their 20s are more likely to be sexually active and are less likely to use condoms than teenagers.4 Their high-risk sexual behavior also leads to increased risk for disease: Half of all new HIV infections in the United States are among people younger than 25,5 and young men aged 20–24 have the highest rate of gonorrhea infection among all male age-groups.6 In contrast to ...