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. 2022 Jun 10;78(5):515–522. doi: 10.1136/thoraxjnl-2021-218337

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© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Trial profile. CXR, chest X-ray; SF-12, Short Form 12; ULDCT, ultra-low-dose chest-CT. ^a Due to privacy regulations the total number of patients assessed for eligibility, and the total number of patients excluded for randomisation are incomplete. These numbers are composed of complete data (Amsterdam UMC, location AMC) and data from a random sample of non-included patients (Spaarne Gasthuis). Specified in online supplemental table 1. ^b Specified in online supplemental table 1. ^c Short informed consent form signed at the emergency department as patient was too ill for full consent, giving permission to use imaging information for study purposes. No full informed consent form, giving permission for collection of follow-up information was signed.