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Table 4 Prenatal detection rates, stratified by birth defects groups in Monchegorsk in 2000–2007 (including terminations of pregnancies due to fetal anomaly)

From: Changes in detection of birth defects and perinatal mortality after introduction of prenatal ultrasound screening in the Kola Peninsula (North-West Russia): combination of two birth registries

Group of birth defect Number of BD Number of BD diagnosed before birth Prenatal detection rate, %
Congenital malformations of the nervous system 25 17 68.0
Congenital malformations of eye, ear, face and neck 3 0 0
Congenital malformations of the circulatory system 12 7 58.3
Congenital malformations of the respiratory system 3 0 0
Cleft lip and cleft palate 3 2 66.7
Other congenital malformations of the digestive system 4 0 0
Congenital malformations of genital organs 21 0 0
Congenital malformations of the urinary system 76 32 42.1
Congenital malformations and deformations of the musculoskeletal system 47 5 10.6
Other congenital malformations, excluding multiple 11 9 81.8
Chromosomal abnormalities 4 1 25.0
Multiple congenital malformation, not classified 23 8 34.8
All birth defects 232 81 34.9