Correction to: BMC Med Res Methodol
https://doi.org/10.1186/s12874-017-0304-x
In the original publication of this article [1], there is a small calculational error in the illustrative example. The estimated second preference contrast Δπ' should be -3.23, not -0.49 as shown. All the other numerical results in the example are shown correctly. This change does not materially affect the substantive interpretation of the analysis.
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Walter, et al. Estimation of treatment preference effects in clinical trials when some participants are indifferent to treatment choice. BMC Med Res Methodol. 2017;17:29.
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Walter, S.D., Turner, R.M., Macaskill, P. et al. Correction to: Estimation of treatment preference effects in clinical trials when some participants are indifferent to treatment choice. BMC Med Res Methodol 20, 82 (2020). https://doi.org/10.1186/s12874-020-00967-3
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DOI: https://doi.org/10.1186/s12874-020-00967-3