[Incidence of life-threatening congenital diseases in newborns of the Kujawy-Pomerania region].

The study included 387 newborns treated in hospital for life-threatening in the years 1985-1991. Rather high differences were found in the number of newborns in various years. Seasonal of the anomalies was also observed. Most anomalies were found in the digestive tract, slightly less in the central nervous system. Higher incidence of anomalies was noted in northern forested parts of the region.