Testing and Correcting for Weak and Pleiotropic Instruments in Two-Sample Multivariable Mendelian Randomisation
Eleanor C. M. Sanderson, Wes Spiller, Jack Bowden
Summary-data conditional F-statistics detect conditionally weak instruments in multivariable Mendelian randomisation, and Q-statistic minimisation gives weak-instrument and balanced-pleiotropy robust estimates plus an exact pleiotropy test.
Statistics in Medicine · Aug 2, 2021Peer-reviewedGenetics✦ In-depth digest