Avoiding bias from weak instruments in Mendelian randomization studies.

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Summary

Bias is shown to increase as the expected F-statistic decreases, and can be reduced by using parsimonious models of genetic association (i.e. not over-parameterized) and by adjusting for measured covariates.

Type
review
Published
2011-06-01
Cited by
3,345
References
39
Access
Open access

Keywords

Mendelian randomization, Observational study, Pooling, Statistics, Statistic

References

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