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Table 5 Chromosomal polymorphism in this study

From: Cytogenetic analysis of 3387 umbilical cord blood in pregnant women at high risk for chromosomal abnormalities

KaryotypesCases(%)Follow-up(n)
Loss to follow-upTerminated gestationPostnatal follow-up
46,Xn,1qh+4 (5.00)013
46,Xn,9qh+9 (11.25)027
46,Xn,13cenh−/cenh+/p+/ps−/pstk+6 (7.50)006
46,Xn,14pstk+1 (1.25)001
46,Xn,15pstk+/ps−/cenh+10 (12.50)217 (1 case of postnatal severe neonatal asphyxia, 1 case of postnatal mild varus pedis)
46,Xn,16qh+3 (3.75)102
46,Xn,21pstk+/pss7 (8.75)115
46,Xn,22pstk+/ps-2 (2.50)002
46,X,Yqh−/Yqs6 (7.50)105
46,XY(Y ≥ 18)21 (26.25)7113 (1 case died of postnatal pneumonia complicated with encephalitis)
46,XY(Y ≤ 21)11 (13.75)1010
Total8013661