title: [The frequency of premature labor before and after administering beta-sympathomimetics in clinical practice].
abstract: From 1971 to 1975, when beta sympathicomimetics were not used, from total 13 561 deliveries 6.06% were preterm deliveries. In years 1976-1980, when these tocolytics are routinely used from total 15 242 deliveries 5.24% were preterm deliveries. Significance is statistically characteristic, p = = 0,01. In the anamnesis of all parturients in both periods, frequency of factors which effect on the rate of preterm deliveries is equal.
mesh_terms: D005260:Female; D005280:Fenoterol / Q000627:therapeutic use; D006801:Humans; D007752:Obstetric Labor, Premature / Q000453:epidemiology / Q000517:prevention & control*; D011247:Pregnancy; D011412:Propanolamines / Q000627:therapeutic use*; D012312:Ritodrine / Q000627:therapeutic use*
chemical_list: D011412:Propanolamines; D005280:Fenoterol; D012312:Ritodrine
vernacular_title: Ucestalost prematurnih porodaja prije i nakon uvodenja beta-simpatikomimetika u klinicku upotrebu.