Hilhorst N, Roman E, Borzée J, et al. Value in psoriasis (IRIS) trial: implementing value-based healthcare in psoriasis management – a 1-year prospective clinical study to evaluate feasibility and value creation. BMJ Open 2023;13:e067504. doi: 10.1136/bmjopen-2022-067504
This article was previously published with an error.
There was an error in the sample size calculation. As this is an exploratory trial no hypotheses were formulated. As such, no formal sample size calculation can be done and no statement can be made about any p-values (as there are no hypotheses). To make this more clear, the first part of the sample size paragraph has been rewritten.