In the trial reported in Chien et al (2016) the authors state that they are reporting a single centre two-arm trial. Discrepancies between the published account and the protocol as described in the trial registry entry (https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fclinicaltrials.gov%2Fct2%2Fshow%2FNCT02391649%amp;data=01%7C01%7Cian.j.norman%40kcl.ac.uk%7C13261bb51a2b47ee9e2808d850bd0b1e%7C8370cf1416f34c16b83c724071654356%7C0&sdata=ozX0jNwEaDzVt%2BfoRzQ6voIzC7QLYxH5%2BN4ZmeARFKs%3D&reserved=0) have been drawn to the journal editors' attention The authors acknowledge that there are misleading statements in the published paper. In fact the protocol referred to in the paper was for a different trial. The trial reported in Chien et al (2016) was preliminary work related to the trial described in the protocol but no protocol was registered for the trial described in this paper. The statement in the paper “While this controlled trial would have four post-tests over 24 months follow-up (refer to the clinical trial register of ClinicalTrials.gov, NCT02391649, at https://register.clinicaltrials.gov), this paper reported its results over the first 6 months post-intervention” is incorrect. As well as referring to a protocol that does not relate to the trial, the statement also implies that there is a longer follow up of the participants in the trial reported in Chien et al (2016) that is still to be reported. This is incorrect, as the longer follow up is a feature of the registered trial, not the trial reported in the paper. The authors would like to apologise for any inconvenience caused. EDITOR'S NOTE: As a trial conducted without a publicly available protocol published in advance readers are reminded that the results of the trial reported in Chien et al (2016) need to be interpreted with extreme caution as there is no way to ensure there is no selective outcome reporting in favour of results with statistically significant p-values (Won et al 2019). Because the International Journal of Nursing Studies did not require the prospective registration of clinical trials at the time the paper was submitted we judge that withdrawal of the paper is not warranted although we do consider the content of the paper to be seriously misleading. Prospective authors are reminded that the International Journal of Nursing Studies now adheres fully to the International Committee of Medical Journal Editors (ICMJE) policy of clinical trial registration. Any study that meets the definition of a clinical trial given by the IJMCE must be registered in a public trials registry at or before the time of first patient enrolment as a condition of consideration for publication. Retrospective registration of such trials is not acceptable.
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