Higher unwed birthrates among teens despite increased condom use.
D000293:Adolescent; D000367:Age Factors; D000569:Americas; D003710:Demography; D019049:Developed Countries; D005193:Family Planning Services; D017533:Marital Status; D008393:Marriage; D009656:North America; D011153:Population; D011154:Population Characteristics; D012746:Sexual Abstinence; D012847:Single Person; D014481:United States
Adolescents; Age Factors; Americas; Demographic Factors; Developed Countries; Family Planning; Family Planning, Behavioral Methods; Marital Status; North America; Northern America; Nuptiality; Population; Population Characteristics; Sexual Abstinence--beneficial effects; United States; Unmarried; Youth