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Table 2 The 18 NIPT-Positive Cases in Group 1 (3 ≤ Z<5)

From: Analysis of the accuracy of Z-scores of non-invasive prenatal testing for fetal Trisomies 13, 18, and 21 that employs the ion proton semiconductor sequencing platform

No.

Sample ID

Z-scores

NIPT results

Fetal karyotype

1

YC150550

3.330

T21

46,XN

2

YC150816

4.342

T13

46,XN

3

YC151439

3.643

T21

47,XN + 21

4

YC161217

4.056

T13

46,XN

5

YC163341

4.778

T13

46,XN

6

YC164267

3.968

T13

46,XN

7

YC165157

3.392

T21

46,XN

8

YC165602

3.362

T18

46,XN

9

YC167031

3.075

T21

46,XN

10

YC171503

3.207

T21

46,XN

11

YC173711

4.951

T21

47,XN + 21

12

YC174141

3.242

T21

47,XN + 21

13

YC175988

3.713

T21

46,XN

14

YC175996

4.111

T18

46,XN

15

YC176477

3.351

T18

46,XN

16

YC176775

3.620

T21

46,XN

17

YC177355

3.263

T21

46,XN

18

YC177383

3.697

T13

46,XN