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Open Access 01-12-2022 | Public Health | Correspondence

Letter to the editor regarding “Covid-19 transmission in fitness centers in Norway - a randomized trial”

Authors: Morten Valberg, Jon Michael Gran, Corina S. Rueegg, Marissa LeBlanc

Published in: BMC Public Health | Issue 1/2022

Abstract

In a recently published paper in BMC Public Health we read about a randomized trial on Covid-19 transmission performed in five fitness centers in Oslo, Norway, during the spring of 2020. In our opinion, this study has major shortcomings in design and methodology, which have not been addressed by the authors.

Helsingen LM, Løberg M, Refsum E, Gjøstein DK, Wieszczy P, Olsvik Ø, et al. Covid-19 transmission in fitness centers in Norway-a randomized trial. BMC Public Health. 2021;21(1):1–9. https://doi.org/10.1186/s12889-021-12073-0.CrossRef

Norwegian Institute of Public Health 2020. Covid-19 weekly report. Available from: https://www.fhi.no/contentassets/8a971e7b0a3c4a06bdbf381ab52e6157/vedlegg/forste-halvar-2020/2020-06-10-ukerapport-uke-23-covid-19_v2.pdf. Accessed 16 June 2022.

Halloran ME, Auranen K, Baird S, Basta NE, Bellan SE, Brookmeyer R, et al. Simulations for designing and interpreting intervention trials in infectious diseases. BMC Med. 2017;15(1):1–8. https://doi.org/10.1186/s12916-017-0985-3.CrossRef

VanderWeele TJ, Tchetgen EJT, Halloran ME. Interference and sensitivity analysis. Stat Sci. 2014;29(4):687–706. https://doi.org/10.1214/14-STS479.CrossRef

Hernán MA, Hernández-Díaz S. Beyond the intention-to-treat in comparative effectiveness research. Clin Trials. 2012;9(1):48–55. https://doi.org/10.1177/1740774511420743.CrossRef

Haber NA, Wieten SE, Smith ER, Nunan D. Much ado about something: a response to “COVID-19: underpowered randomised trials, or no randomised trials?” Trials. 2021;22(1):1–4. https://doi.org/10.1186/s13063-021-05755-y.CrossRef

Title: Letter to the editor regarding “Covid-19 transmission in fitness centers in Norway - a randomized trial”
Authors: Morten Valberg
Jon Michael Gran
Corina S. Rueegg
Marissa LeBlanc
Publication date: 01-12-2022
Publisher: BioMed Central
Keywords: Public Health
COVID-19
Published in: BMC Public Health / Issue 1/2022
Electronic ISSN: 1471-2458
DOI: https://doi.org/10.1186/s12889-022-14800-7

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Letter to the editor regarding “Covid-19 transmission in fitness centers in Norway - a randomized trial”

Abstract

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