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Does corrected QT interval correlate with serum ionised calcium in the ED setting?

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  • Handling editor Kirsty Challen

  • Twitter @hckildegaard

  • Contributors MC conceived and designed the study, analysed and interpreted the data, and wrote the report. ATL, MB, HK and JLF conceived and designed the study and assisted with analysis, interpretation of the data and writing of the report. All authors have had access to the data and approved the final version of the manuscript. AS, medical statistician, assisted with the design and interpretation of the statistical analysis. AP, professor of clinical pharmacology, helped review the finished article.

  • Funding The study was funded by independent grants from The Thelma Zoéga Fund for Medical Research, the Research Foundation of Odense University Hospital, The Swedish HeartLung Foundation and Region Skåne. This study was also a part of the Artificially Intelligent use of Registers at Lund University research environment and received funding from the Swedish Research Council (VR, grant number 2019-00198). None of these foundations had any role in the conception, design or conduct of the study; management, analysis or interpretation of the data; or the preparation, review or approval of the manuscript.

  • Competing interests MC, JLF, AL and MB have nothing to declare. HK owns stocks in HL A/S.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Supplemental material This content has been supplied by the author(s). It has not been vetted by BMJ Publishing Group Limited (BMJ) and may not have been peer-reviewed. Any opinions or recommendations discussed are solely those of the author(s) and are not endorsed by BMJ. BMJ disclaims all liability and responsibility arising from any reliance placed on the content. Where the content includes any translated material, BMJ does not warrant the accuracy and reliability of the translations (including but not limited to local regulations, clinical guidelines, terminology, drug names and drug dosages), and is not responsible for any error and/or omissions arising from translation and adaptation or otherwise.