title: Risk of labor abnormalities with advancing maternal age.
abstract: The relationship between maternal age and the frequency of dysfunctional labor patterns was assessed retrospectively in a population of 6248 gravid women. A significant correlation between age and protraction disorders was observed in nulliparas. This could not be accounted for by patterns of anesthetic use, and it is speculated that a decrease in myometrial efficiency may accompany aging during the reproductive years.
mesh_terms: D000328:Adult; D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D008423:Maternal Age; D007744:Obstetric Labor Complications / Q000209:etiology*; D010298:Parity; D011247:Pregnancy; D012189:Retrospective Studies; D012306:Risk