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Table 3 The distribution of true positive CNVs in different chromosomes

From: Expanding the application of non-invasive prenatal testing in the detection of foetal chromosomal copy number variations

Chr CNVs length CNV gain or loss CCNV
 < 5 Within 5–10 Mb  > 10 CNV CNV NIPT NIPT true NIPT false
Mb Mb Gain Loss positive positive positive
Chr1 3 0 0 2 1 3 1 2
Chr2 3 1 0 2 2 4 3 1
Chr3 2 1 0 3 0 3 3 0
Chr4 1 0 0 0 1 1 1 0
Chr5 3 1 2 0 6 6 0 6
Chr6 2 1 0 2 1 3 1 2
Chr7 0 1 0 0 1 1 0 1
Chr8 2 1 0 1 2 3 2 1
Chr9 0 1 0 1 0 1 0 1
Chr10 1 1 0 0 2 2 1 1
Chr11 1 0 1 2 0 2 2 0
Chr12 1 0 0 0 1 1 1 0
Chr13 2 1 0 1 2 3 1 2
Chr14 0 0 0 0 0 0 0 0
Chr15 1 2 0 1 2 3 2 1
Chr16 3 0 0 2 1 3 2 1
Chr17 2 0 0 1 1 2 1 1
Chr18 4 1 1 3 3 6 4 2
Chr19 0 0 0 0 0 0 0 0
Chr20 1 0 1 1 1 2 0 2
Chr21 0 0 0 0 0 0 0 0
Chr22 1 1 0 1 1 2 0 2
Total 33 13 5 23 28 51 25 26