title: Recent trends and variations in nonmarital childbearing.
authors.forename: S
authors.initials: S
authors.lastname: Ventura
mesh_terms: D000293:Adolescent; D000328:Adult; D001723:Birth Rate / Q000639:trends*; D006801:Humans; D017533:Marital Status; D008875:Middle Aged; D009035:Mothers; D012307:Risk Factors; D020954:Single-Parent Family