Two sample MR report


Telomere_length against aseg lh volume vessel

Date: 22 April, 2022


Results from two sample MR:

method nsnp b se pval
MR Egger 23 0.1348397 0.0994063 0.1893613
Weighted median 23 0.0370870 0.0535964 0.4889576
Inverse variance weighted 23 -0.0106384 0.0401054 0.7908076
Simple mode 23 0.0097113 0.0824403 0.9072963
Weighted mode 23 0.0535241 0.0611165 0.3906167

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 20.92255 21 0.4636830
Inverse variance weighted 23.45029 22 0.3766885

Test for directional horizontal pleiotropy

egger_intercept se pval
-0.0089323 0.0056182 0.1268031

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0.0357937 0.0007128 TRUE 0

Note - R2 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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