Invasive prenatal diagnosis was introduced in Sweden in the early 1970
s and is an integral part of the public health care system. Funding is
provided by taxation; the patient only pays a consultation fee. Genet
ic analyses on a broad range of cytogenetic and molecular disorders ar
e performed at the 6 university-affiliated hospitals and in 1 county h
ospital. About 6% of all newborns have been cytogenetically screened d
uring pregnancy, and about 90% of the analyses are performed after amn
iocentesis. The main indication is chromosome analysis because of adva
nced maternal age.