title: [The analysis of seasonality in births and deaths].
abstract: "Monthly data on live births and stillbirths and quarterly data on mortality and infant mortality in Poland are analyzed for the period 1983-1985.  The aim is to evaluate and compare seasonal fluctuations in these variables in Katowice voivodship and in Poland as a whole.  Effects of seasonal factors are estimated separately for males and females and urban-rural areas via a regression model. For births, effects of seasonality are similar in Katowice and Poland, while for deaths significant differences are observed.
mesh_terms: D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005298:Fertility; D005313:Fetal Death; D005843:Geography; D007226:Infant Mortality; D009026:Mortality; D011044:Poland; D011153:Population; D011157:Population Dynamics; D012106:Research; D012621:Seasons
keywords: Comparative Studies; Demographic Factors; Developed Countries; Eastern Europe; Europe; Fertility; Fetal Death; Geographic Factors; Infant Mortality; Mortality; Poland; Population; Population Dynamics; Research Methodology; Seasonal Variation; Studies
vernacular_title: Analiza sezonowosci urodzen i zgonow.