High-risk obstetrics. II. Value of semiobjective grading system in identifying the vulnerable group.
D004644:Emotions; D004812:Epidemiologic Methods; D005163:Factor Analysis, Statistical; D005191:Family Characteristics; D005260:Female; D005865:Gestational Age; D006801:Humans; D008423:Maternal Age; D008913:Minority Groups; D009017:Morbidity; D009026:Mortality; D009098:Multiphasic Screening; D009747:Nutritional Physiological Phenomena; D007744:Obstetric Labor Complications / Q000453:epidemiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis / Q000453:epidemiology*; D011295:Prenatal Care; D012959:Socioeconomic Factors