title: [Infant mortality and perinatal mortality in Poland in the eighties. II. Deaths by birthweight].
abstract: The dynamics of the changes in the level of the birthweight-specific infant mortality and perinatal mortality rates by age and cause during the eighties is presented. The strongest decline in the birthweight-specific infant and perinatal mortality rates is observed among the newborns weighing less than 2500 g. The level of the low birth weight (7.9% in 1989) and despite the decrease--the infant and perinatal mortality rates among the newborns weighing 1001-2500 g (100.5 and 109.4 respectively in 1989) and among the newborns weighing 601-1000 g (865.3 and 851.1 respectively in 1989) are high comparing to the developed countries.
authors.affiliation: Zakład Epidemiologii Instytutu Matki i Dziecka, Warszawie.
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Brzeziński
authors.forename: I
authors.initials: I
authors.lastname: Sawińska
authors.forename: K
authors.initials: K
authors.lastname: Szamotulska
mesh_terms: D001724:Birth Weight; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D011044:Poland / Q000453:epidemiology; D016019:Survival Analysis
vernacular_title: Umieralność niemowlat i umieralność okołoporodowa w Polsce w latach osiemdziesiatych. Cześć II: Zgony według masy urodzeniowej.