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. Author manuscript; available in PMC: 2020 Aug 14.
Published in final edited form as: Int J Neonatal Screen. 2020 May 26;6(2):41. doi: 10.3390/ijns6020041

Table 3.

Results of second-tier testing with CLIR results before tuning based on genotype.

Clinical Category Genetic Category Number CLIR Applied to MS/MS with 2TT1
SCAD(2M) Uncertain Not SCAD(2M)
SCAD SCAD(2M)
SCAD(2M1P)
SCAD(2M2P)
23
4
3
21
4
3
2
0
0
0
0
0
SCAD(het) SCAD(1M1P)
SCAD(1M2P)
24
7
10
3
2
1
12
3
Not SCAD SCAD(2P)
SCAD(1P)
10
1
0
1
0
0
10
0
No SCAD variants 2 1 0 1
Total 74 43 5 26
PPV 40.50% 62.50%
Reduction in Positives 35.1%
1

Second-tier test. PPV: positive predictive value.