Two sample MR report


Tyrosine to pyruvate ratio against Malignant_melanoma_of_skin

Date: 03 January, 2026


Results from two sample MR:

method nsnp b se pval
MR Egger 3 -0.2527765 0.2394591 0.4827805
Weighted median 3 -0.2848728 0.1362767 0.0365819
Inverse variance weighted 3 -0.3306112 0.1144867 0.0038798
Simple mode 3 -0.2614411 0.1599157 0.2436995
Weighted mode 3 -0.2630191 0.1766752 0.2749845

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 0.5348622 1 0.4645698
Inverse variance weighted 0.6718231 2 0.7146863

Test for directional horizontal pleiotropy

egger_intercept se pval
-0.0105246 0.0284384 0.7743487

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
5.41e-05 0 TRUE 0.5251524

Note - R^2 values are approximate


Forest plot of single SNP MR

plot of chunk chunk5


Comparison of results using different MR methods

plot of chunk chunk6


Funnel plot

plot of chunk chunk7


Leave-one-out sensitivity analysis

plot of chunk chunk8