Two sample MR report


Telomere_length against BA-exvivo rh area BA4a

Date: 22 April, 2022


Results from two sample MR:

method nsnp b se pval
MR Egger 23 0.0762448 0.0994073 0.4516227
Weighted median 23 0.0611064 0.0550564 0.2670470
Inverse variance weighted 23 0.0124196 0.0388458 0.7491835
Simple mode 23 0.0974157 0.0919386 0.3008337
Weighted mode 23 0.0746054 0.0696693 0.2958444

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 19.59463 21 0.5470514
Inverse variance weighted 20.08116 22 0.5779626

Test for directional horizontal pleiotropy

egger_intercept se pval
-0.0039188 0.0056183 0.4931291

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0.0357937 0.0006116 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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