Although the fetal death rate has declined over the past 30 years among women of all ages, it is unknown whether particular characteristics of the mother, such as age, still affect the risk of fetal death.
We undertook a study to determine whether older age, having a first child (nulliparity), or other characteristics of the mother are risk factors for fetal death.
The fetal death rate decreased significantly from 11.5 per 1000 total births (including live births and stillbirths) in the 1960s to 3.2 per 1000 in 1990 through 1993 (P<0.001).
Between these periods, the average maternal age at delivery increased from 27 to 30 years (P<0.001), and the frequency of the diagnosis of diabetes and hypertension during pregnancy increased fivefold (P<0.001).
Nevertheless, after we controlled for these and other maternal characteristics, women 35 years of age or older continued to have a significantly higher rate of fetal death than their younger counterparts (odds ratio for women 35 to 39 years of age as compared with women<30 years of age, 1.9 ; 95 percent confidence interval, 1.3 to 2.7 ; for those 40 or older, 2.4 ; 95 percent confidence interval, 1.3 to 4.5).
Changes in maternal health and obstetrical practice have resulted in a 70 percent decline in the rate of fetal death among pregnant women of all ages since the 1960s.
Advancing maternal age, however, continues to be a risk factor for fetal death.
(N Engl J Med 1995 ; 333 : 953-7.).
Mots-clés Pascal : Mort, Foetus, Age, Mère, Primiparité, Facteur risque, Homme, Canada, Amérique du Nord, Amérique, Gestation pathologie, Foetus pathologie
Mots-clés Pascal anglais : Death, Fetus, Age, Mother, Primiparity, Risk factor, Human, Canada, North America, America, Pregnancy disorders, Fetal diseases
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0571445
Code Inist : 002B20F02. Création : 01/03/1996.