Two sample MR report


cerebral microbleeds against PRKAB1-UKBPPP

Date: 08 January, 2026


Results from two sample MR:

method nsnp b se pval
MR Egger 7 0.035 0.057 0.568
Weighted median 7 -0.016 0.025 0.535
Inverse variance weighted 7 -0.021 0.019 0.251
Simple mode 7 -0.003 0.036 0.938
Weighted mode 7 -0.014 0.033 0.693

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 4.55 5 0.474
Inverse variance weighted 5.62 6 0.467

Test for directional horizontal pleiotropy

egger_intercept se pval
-0.016 0.015 0.347

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0 0 TRUE 0.756

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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