title: [An epidemiologic study on low-birth-weight babies].
abstract: A case-control study was made in Gunma Prefecture of 1,390 mothers of babies born weighing 2,500 grams or less and an equal number of mothers of 3,000-up to-4,000 gram babies matched by place and month of birth. A correlation was found between low-birth-weight babies and maternal age, stature, menstrual history and past history. The mother's occupation, educational career, smoking habits, amount of sleep each day, date of issue of the Mother's Handbook and the number of the periodical health examinations received can be listed as socio-medical factors. Bleeding and lower abdominal pain during pregnancy, anemia and toxemia of pregnancy are found as prenatal factors. Low-birth-weight babies are found to be correlated with multiple pregnancy, breech presentation, placenta previa and premature separation of the placenta, also.
mesh_terms: D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007564:Japan; D007746:Labor Presentation; D008297:Male; D008423:Maternal Age; D007744:Obstetric Labor Complications / Q000453:epidemiology; D011247:Pregnancy; D012423:Rural Health; D012737:Sex Factors; D014931:Women, Working