Two sample MR report


SPAG17_Epithelial against UKB-b-18436

Date: 13 January, 2026


Results from two sample MR:

method nsnp b se pval
MR Egger 18 0.0066690 0.0773756 0.9323852
Weighted median 18 -0.0245682 0.0098226 0.0123775
Inverse variance weighted 18 -0.0240743 0.0073541 0.0010618
Simple mode 18 -0.0234924 0.0163372 0.1685960
Weighted mode 18 -0.0106551 0.0175623 0.5520648

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 5.390300 16 0.9934462
Inverse variance weighted 5.549606 17 0.9957366

Test for directional horizontal pleiotropy

egger_intercept se pval
-0.0117818 0.0295185 0.6950729

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0.0003913 0 TRUE 0.06012

Note - R^2 values are approximate


Forest plot of single SNP MR

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Comparison of results using different MR methods

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Funnel plot

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Leave-one-out sensitivity analysis

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