title: First births to older mothers, 1970-86.
authors.affiliation: Division of Vital Statistics, National Center for Health Statistics, Hyattsville, MD 20782.
authors.forename: S J
authors.initials: SJ
authors.lastname: Ventura
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D004493:Education; D005260:Female; D006801:Humans; D008423:Maternal Age; D010298:Parity; D018566:Pregnancy, High-Risk