HIGHLIGHTS
- who: Key Messages and colleagues from the C The Author Published by Oxford University Press on behalf of the International Epidemiological AssociationCare, University of Cambridge, Cambridge, UK and MRC Biostatistics Unit, Cambridge, UK have published the Article: Power calculator for instrumental variable analysis in pharmacoepidemiology, in the Journal: (JOURNAL)
- future: Work is needed to establish the formula for power in other scenarios that use instrumental variable analysis within a pharmacoepidemiology context.
SUMMARY
By substituting x~ 0 Pz~ x~ and simplifying, the authors obtain the following formula for power: pffiffiffi1 d pZ . . .
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