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. 2021 May 12;28(1):e100341. doi: 10.1136/bmjhci-2021-100341

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© Author(s) (or their employer(s)) 2021. 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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(A) HRs of COVID-19 associated death among patients with cancer and types of cancers. (a) Results were from stratified analyses using the patients stratifying conditions listed in the column named ‘cancer’. All analyses used Cox model with covariates of sex, age, COVID-19 infection status, and cancer status (localised or distant metastasis) except for stratified analyses of localised cancer, distant metastasis, and non-cancers. Cancer subtypes were analysed when they were composed of 100 or more total cases. (b) Four patients with cancer with inconsistent self-reporting and gene sex were excluded from the study. (c) Fatality event was assessed for the 21 days following the first COVID-19 positive testing or the first COVID-19 negative testing (negative controls remained so throughout) and was available for all cancer subjects under study. (d) Sixty non-cancer patients did not match the testing facility with a patient with cancer due to lacking subjects of matching all factors (eg, age). (B-D) Kaplan-Meier curves for COVID-19 positive vs. negative cancer patients: (B) all cancer patients, (C) patients with distant metastasis, and (D) patients with only localized cancer.