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Table 5 Details of true-positive NIPT samples with the validation results

From: Clinical performance of non-invasive prenatal served as a first-tier screening test for trisomy 21, 18, 13 and sex chromosome aneuploidy in a pilot city in China

Case

NIPT result

Umbilical cord tissue

Fetal tissue

Placental tissue

Fetal side

Maternal side

Case 15

T21

T21

/

/

/

Case 16

T21

/

T21

47,XN,+21[75]/46,X N[27]

T21

Case 17

T21

T21

/

NA

NA

Case 18

T21

T21

/

T21

T21

Case 19

T18

T18

/

T18

T18

Case 20

T21

/

/

T21

T21

Case 21

T21

T21

/

T21

T21

Case 22

T21

/

/

T21

T21

  1. / No sample