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. 2019 Sep 12;56(12):809–817. doi: 10.1136/jmedgenet-2019-106281

Table 3.

Concordance between blood samples and non-enriched saliva or buccal samples and between enriched saliva or buccal samples and the corresponding non-enriched samples, for common CNVs (those with >1% frequency in MSSNG parents32).

Concordant Unique to
sample type 1
Unique to
sample type 2
Concordant Unique to
sample type 1
Unique to
sample type 2
Concordant Unique to
sample type 1
Unique to
sample type 2
Sample type 1 Sample type 2 [1 kb, 5 kb) [5 kb,10 kb) [10 kb,…)
Deletions
 HuRef blood 1 HuRef blood 2 127 41 (3/3) 35 (2/3) 66 7 (3/3) 2 (2/2) 31 0 (0/0) 1 (1/1)
 Blood Non-enriched saliva 463 244 (32/32) 117 (23/23) 222 64 (29/29) 14 (13/13) 147 15 (12/12) 4 (3/4)
 Blood Non-enriched buccal 460 247 (35/35) 107 (19/19) 248 38 (23/23) 13 (10/10) 149 13 (11/11) 9 (7/9)
 Enriched saliva Non-enriched saliva 359 100 (18/18) 220 (22/23) 190 37 (21/21) 47 (19/19) 123 7 (7/7) 28 (8/9)
 Enriched buccal Non-enriched buccal 209 18 (14/14) 360 (36/37) 104 7 (6/7) 154 (34/34) 71 12 (4/9) 88 (23/24)
Duplications
 HuRef blood 1 HuRef blood 2 28 2 (1/2) 10 (1/3) 17 3 (2/3) 2 (1/2) 32 2 (0/2) 3 (0/3)
 Blood Non-enriched saliva 107 34 (10/21) 17 (6/15) 49 13 (6/13) 3 (1/3) 150 9 (1/8) 14 (0/12)
 Blood Non-enriched buccal 105 36 (7/21) 31 (5/22) 48 14 (7/14) 10 (2/10) 146 13 (0/10) 11 (1/10)
 Enriched saliva Non-enriched saliva 85 12 (5/10) 39 (7/19) 33 6 (3/6) 18 (7/12) 123 27 (1/17) 42 (4/22)
 Enriched buccal Non-enriched buccal 49 3 (0/3) 84 (12/36) 22 1 (1/1) 40 (12/27) 110 33 (0/22) 46 (5/19)

The ‘concordant’ columns contain the number of CNVs detected in both sample type 1 and sample type 2. The ‘unique to sample type 1’ columns contain the total number of CNVs detected in sample type 1 but not sample type 2, followed by an expression of the form X/Y, where X is the number of CNVs verified as correct by visual inspection and Y is the total number inspected (and analogously for the ‘unique to sample type 2’ columns). For example, 209 common deletions between 1 and 5 kb were detected in both the enriched buccal sample and the non-enriched buccal sample in the same individual, while 18 were detected only in the enriched buccal sample and 360 were detected only in the non-enriched buccal sample. Of the 37 deletions detected only in non-enriched buccal samples that were checked by visual confirmation, 36 were classified as true. HuRef blood 1 and HuRef blood 2 refer to replicates sequenced from the same blood-derived DNA sample and represent a baseline level of concordance. All other counts were aggregated across the four study participants. For individual-specific data, see online supplementary file 3.

CNV, copy number variant.