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The incidence of Down syndrome in northern Finland with special reference to maternal age
Author(s) -
Leisti J.,
Vahtola L.,
Linna S.L.,
Herva R.,
Koskela S.L.,
Vitali M.
Publication year - 1985
Publication title -
clinical genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.543
H-Index - 102
eISSN - 1399-0004
pISSN - 0009-9163
DOI - 10.1111/j.1399-0004.1985.tb00216.x
Subject(s) - incidence (geometry) , demography , pediatrics , medicine , down syndrome , physics , psychiatry , sociology , optics
The incidence of live‐born children with Down syndrome was found to be 1.73/1000 (1:578) in northern Finland over the years 1965 to 1979. Despite a marked reduction in the proportion of older mothers, no significant change in the incidence was observed. Instead, an age‐specific rise in the incidence for mothers aged 25 to 29 years could be shown during the last five‐year period in years 1975 to 1979.