Two sample MR report


Telomere_length against IDP dMRI ProbtrackX L1 cst l

Date: 22 April, 2022


Results from two sample MR:

method nsnp b se pval
MR Egger 23 0.0944416 0.1088183 0.3952681
Weighted median 23 0.0938681 0.0570738 0.1000361
Inverse variance weighted 23 0.0545416 0.0417064 0.1909575
Simple mode 23 0.0937493 0.0952077 0.3354864
Weighted mode 23 0.0810543 0.0654943 0.2289190

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 24.67518 21 0.2615063
Inverse variance weighted 24.86163 22 0.3037376

Test for directional horizontal pleiotropy

egger_intercept se pval
-0.00245 0.0061506 0.6943964

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0.0357937 0.0008119 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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