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. 2015 Feb 13;11(2):e1005015. doi: 10.1371/journal.pgen.1005015

Table 1. Proportion of X-linkage for different SNP categories.

SNP class Gene 1 type Median 95% CI 2 V P 3 95% CI 4 DF W P 5
All trans SCV 0.095 0.08–0.11 2320 <0.0001 - - - -
SDV.all 0.140 0.13–0.18 4042 0.2111 0.02–0.07 1 9955 0.0004
SDV.F 0.156 0.13–0.21 1539 0.0831 0.03–0.09 1 6083 0.0003
SDV.M 0.102 0.09–0.15 663 0.2723 -0.01–0.05 1 4005 0.4133
- Intergenic SCV 0.071 0.07–0.10 1787 <0.0001 - - - -
SDV.all 0.097 0.09–0.17 3185 0.5662 -0.00–0.06 1 8273 0.0548
SDV.F 0.128 0.11–0.22 1212 0.4966 0.0–0.09 1 5020 0.0122
SDV.M 0.058 0.05–0.13 483 0.0251 -0.01–0.01 1 3347 0.9286
- Genic SCV 0.098 0.09–0.12 2786 0.0002 - - - -
SDV.all 0.145 0.13–0.19 4121 0.1012 0.01–0.08 1 9639 0.0018
SDV.F 0.147 0.13–0.20 1490 0.1479 0.01–0.09 1 5752 0.0057
SDV.M 0.137 0.10–0.18 730 0.9177 -0.00–0.06 1 4033 0.1869
- -Exon SCV 0.053 0.07–0.11 2448 <0.0001 - - - -
SDV.all 0.089 0.11–0.17 3378 0.9098 -0.00–0.05 1 7412 0.0770
SDV.F 0.105 0.11–0.19 1156 0.7478 -0.00–0.07 1 4137 0.2391
SDV.M 0.077 0.09–0.18 654 0.7530 -0.00–0.06 1 3346 0.1262
- -Intron SCV 0.094 0.09–0.12 3021 0.0013 - - - -
SDV.all 0.156 0.13–0.19 4117 0.1031 0.00–0.08 1 9346 0.0086
SDV.F 0.165 0.13–0.21 1551 0.0713 0.00–0.10 1 5599 0.0169
SDV.M 0.123 0.09–0.17 720 0.6778 -0.01–0.06 1 3917 0.3289

P-values for testing whether the median proportion of X-linkage for different SNP categories departs from the expected 0.137, and for testing whether X-linkage differs between SNP categories.

1SNPs are divided into those with a sexually concordant (SCV) and sexually discordant (SDV) effect on gene expression. SDV SNPs are further decomposed onto the categories SDV.M or SDV.F, which represents SNPs with a male- or female-biased effect size.

295% CI of the median proportion of X-linked SNPs.

3Two-tailed P-values (Wilcoxon test) testing if the X-linked proportion differs from 0.137.

495% CI of the difference in the median proportion of X-linkage for SDV SNP category and SCV SNPs

5Two-tailed P-values (Wilcoxon test) testing for a difference in X-linkage between SDV SNP category and SCV SNPs

Note: Not all genes had SNPs that passed the P-value threshold, and some genes had no SNPs which passed the P-value threshold for a certain SNP-class. All trans SNPs N = 133 (SCV), N = 119 (SDV); Intergenic SNPs N = 125 (SCV), N = 116 (SDV); Genic SNPs N = 133 (SCV), N = 118 (SDV); Exon SNPs N = 119 (SCV), N = 110 (SDV); Intron SNPs N = 133 (SCV), N = 118 (SDV).