Two sample MR report


Telomere_length against aparc-a2009s rh area G-subcallosal

Date: 22 April, 2022


Results from two sample MR:

method nsnp b se pval
MR Egger 23 -0.0543003 0.0994064 0.5906541
Weighted median 23 -0.0598814 0.0514822 0.2447693
Inverse variance weighted 23 -0.0358123 0.0388455 0.3565732
Simple mode 23 -0.0698066 0.0853954 0.4224357
Weighted mode 23 -0.0620136 0.0619646 0.3278092

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 14.20819 21 0.8604918
Inverse variance weighted 14.24901 22 0.8924062

Test for directional horizontal pleiotropy

egger_intercept se pval
0.0011352 0.0056182 0.8418222

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0.0357937 0.0004575 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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