Two sample MR report


Sphingomyelin (d36:2) levels against finn-b-I9_PVT_EXNONE

Date: 16 December, 2025


Results from two sample MR:

method nsnp b se pval
MR Egger 25 0.4369897 0.5696086 0.4507812
Weighted median 25 0.4746822 0.3581319 0.1850254
Inverse variance weighted 25 0.4973674 0.2497708 0.0464484
Simple mode 25 0.8629585 0.6497617 0.1966329
Weighted mode 25 0.9224645 0.5825211 0.1263809

Heterogeneity tests

method Q Q_df Q_pval
MR Egger 22.50502 23 0.4899648
Inverse variance weighted 22.51894 24 0.5483232

Test for directional horizontal pleiotropy

egger_intercept se pval
0.0103048 0.0873712 0.9071374

Test that the exposure is upstream of the outcome

snp_r2.exposure snp_r2.outcome correct_causal_direction steiger_pval
0.0006574 0 TRUE 0.0366098

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