Risk of premature delivery among indigent Negro women based on past reproductive performance.
D000022:Abortion, Spontaneous / Q000453:epidemiology; D001741:Black or African American; D000367:Age Factors; D001724:Birth Weight; D005260:Female; D005845:Georgia; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D007752:Obstetric Labor, Premature / Q000453:epidemiology* / Q000517:prevention & control; D010298:Parity; D011203:Poverty; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology; D012959:Socioeconomic Factors