title: Changing demography of trisomy 18.
abstract: The incidence of trisomy 18 in Leicestershire during the years 1980-85 inclusive was one in 3086 births. Eleven of the 21 babies born with trisomy 18 in this period were delivered by caesarean section. Median and mean periods of survival were 2.5 and 22 days, respectively.
mesh_terms: D002869:Chromosome Aberrations / Q000453:epidemiology* / Q000401:mortality; D025063:Chromosome Disorders; D002887:Chromosomes, Human, Pair 18; D004739:England; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012189:Retrospective Studies; D014314:Trisomy