Homogeneity in the Instrument-exposure Association and Point Estimation Using Binary Instrumental Variables.
Fernando Pires HartwigLinbo WangGeorge Davey SmithNeil Martin DaviesPublished in: Epidemiology (Cambridge, Mass.) (2022)
For binary instruments, instrument-exposure additive homogeneity identifies the ADE if the exposure is also binary. Otherwise, additional assumptions (such as additive linearity of the exposure-outcome effect) are required.
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