Zhou F, Yu T, Du R, Fan G, Liu Y, Liu Z, Xiang J, Wang Y, Song B, Gu X, et al. Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study. Lancet. 2020;395(10229):1054–62.
Article
PubMed
PubMed Central
CAS
Google Scholar
He F, Deng Y, Li W. Coronavirus disease 2019: What we know? J Med Virol. 2020;92(7):719–25.
Article
PubMed
PubMed Central
CAS
Google Scholar
Hagg S, Jylhava J, Wang Y, Xu H, Metzner C, Annetorp M, Garcia-Ptacek S, Khedri M, Bostrom AM, Kadir A, et al. Age, frailty, and comorbidity as prognostic factors for short-term outcomes in patients with coronavirus disease 2019 in geriatric care. J Am Med Dir Assoc. 2020;21(11):1555–9.
Article
PubMed
PubMed Central
Google Scholar
Davis P, Gibson R, Wright E, Bryan A, Ingram J, Lee RP, Godwin J, Evans T, Burleigh E, Wishart S, et al. Atypical presentations in the hospitalised older adult testing positive for SARS-CoV-2: a retrospective observational study in Glasgow, Scotland. Scott Med J. 2020;66:89–97.
Article
PubMed
PubMed Central
Google Scholar
Wang D, Hu B, Hu C, Zhu F, Liu X, Zhang J, Wang B, Xiang H, Cheng Z, Xiong Y, et al. Clinical characteristics of 138 hospitalized patients with 2019 novel coronavirus-infected pneumonia in Wuhan, China. JAMA. 2020;323:1061.
Article
PubMed
PubMed Central
CAS
Google Scholar
Guan WJ, Ni ZY, Hu Y, Liang WH, Ou CQ, He JX, Liu L, Shan H, Lei CL, Hui DSC, et al. Clinical characteristics of coronavirus disease 2019 in China. N Engl J Med. 2020;382:1708.
Article
PubMed
CAS
Google Scholar
Chen N, Zhou M, Dong X, Qu J, Gong F, Han Y, Qiu Y, Wang J, Liu Y, Wei Y, et al. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. Lancet. 2020;395(10223):507–13.
Article
PubMed
PubMed Central
CAS
Google Scholar
Kramer DB, Lo B, Dickert NW. CPR in the Covid-19 Era: an ethical framework. N Engl J Med. 2020;383(2): e6.
Article
PubMed
CAS
Google Scholar
Chase J. Caring for frail older adults during COVID-19: integrating public health ethics into clinical practice. J Am Geriatr Soc. 2020;68(8):1666–70.
Article
PubMed
PubMed Central
Google Scholar
Hubbard RE, Maier AB, Hilmer SN, Naganathan V, Etherton-Beer C, Rockwood K. Frailty in the face of COVID-19. Age Ageing. 2020;49(4):499–500.
Article
PubMed
Google Scholar
Jung C, Flaatten H, Fjølner J, Bruno RR, Wernly B, Artigas A, Bollen Pinto B, Schefold JC, Wolff G, Kelm M, et al. The impact of frailty on survival in elderly intensive care patients with COVID-19: the COVIP study. Crit Care. 2021;25(1):149.
Article
PubMed
PubMed Central
Google Scholar
Lewis EG, Breckons M, Lee RP, Dotchin C, Walker R. Rationing care by frailty during the COVID-19 pandemic. Age Ageing. 2021;50(1):7–10.
Article
PubMed
Google Scholar
O’Mara LSS, Orkaby AR, Ouchi K, Bernacki R. A framework to triage older adults with Covid-19 to provide patient-centered care. NEJM Catalyst. 2020;1:1–11.
Google Scholar
Straw S, McGinlay M, Drozd M, Slater TA, Cowley A, Kamalathasan S, Maxwell N, Bird RA, Koshy AO, Prica M, et al. Advanced care planning during the COVID-19 pandemic: ceiling of care decisions and their implications for observational data. BMC Palliat Care. 2021;20(1):10.
Article
PubMed
PubMed Central
Google Scholar
National Institute for Health and Care Excellence: COVID-19 rapid guideline: critical care in adults. 2020.
Smithard DG, Abdelhameed N, Han T, Pieris A. Age, frailty, resuscitation and intensive care: with reference to COVID-19. Geriatrics (Basel). 2021;6(2):36.
Article
Google Scholar
Maltese G, Corsonello A, Di Rosa M, Soraci L, Vitale C, Corica F, Lattanzio F. Frailty and COVID-19: a systematic scoping review. J Clin Med. 2020;9(7):2106.
Article
PubMed Central
CAS
Google Scholar
Okahara S, Subramaniam A, Darvall JN, Ueno R, Bailey M, Pilcher DV. The relationship between frailty and mechanical ventilation: a population-based cohort study. Ann Am Thorac Soc. 2021;19:264–71.
Article
Google Scholar
Bagshaw SM, Stelfox HT, McDermid RC, Rolfson DB, Tsuyuki RT, Baig N, Artiuch B, Ibrahim Q, Stollery DE, Rokosh E, et al. Association between frailty and short- and long-term outcomes among critically ill patients: a multicentre prospective cohort study. CMAJ. 2014;186(2):E95-102.
Article
PubMed
PubMed Central
Google Scholar
Darvall JN, Bellomo R, Paul E, Subramaniam A, Santamaria JD, Bagshaw SM, Rai S, Hubbard RE, Pilcher D. Frailty in very old critically ill patients in Australia and New Zealand: a population-based cohort study. Med J Aust. 2019;211(7):318–23.
Article
PubMed
Google Scholar
Muscedere J, Waters B, Varambally A, Bagshaw SM, Boyd JG, Maslove D, Sibley S, Rockwood K. The impact of frailty on intensive care unit outcomes: a systematic review and meta-analysis. Intensive Care Med. 2017;43(8):1105–22.
Article
PubMed
PubMed Central
Google Scholar
Darvall JN, Bellomo R, Bailey M, Paul E, Young PJ, Rockwood K, Pilcher D. Frailty and outcomes from pneumonia in critical illness: a population-based cohort study. Br J Anaesth. 2020;125(5):730–8.
Article
PubMed
CAS
Google Scholar
Chin KL, Ofori-Asenso R, Jordan KA, Jones D, Liew D. Early signs that COVID-19 is being contained in Australia. J Infect. 2020;81(2):318–56.
Article
PubMed
PubMed Central
CAS
Google Scholar
ANZICS CORE: Report on COVID-19 admissions to Intensive Care in Australia 01 January 2021–31 December 2021. Melbourne; 2022: 15.
APD Data Dictionary ANZICS core—adult patient database https://www.anzics.com.au/wp-content/uploads/2018/08/ANZICS-APD-Dictionary.pdf
Rockwood K, Song X, MacKnight C, Bergman H, Hogan DB, McDowell I, Mitnitski A. A global clinical measure of fitness and frailty in elderly people. CMAJ. 2005;173(5):489–95.
Article
PubMed
PubMed Central
Google Scholar
Bagshaw SM, Stelfox HT, Johnson JA, McDermid RC, Rolfson DB, Tsuyuki RT, Ibrahim Q, Majumdar SR. Long-term association between frailty and health-related quality of life among survivors of critical illness: a prospective multicenter cohort study. Crit Care Med. 2015;43(5):973–82.
Article
PubMed
Google Scholar
Theou O, Pérez-Zepeda MU, van der Valk AM, Searle SD, Howlett SE, Rockwood K. A classification tree to assist with routine scoring of the Clinical Frailty Scale. Age Ageing. 2021;50(4):1406–11.
Article
PubMed
PubMed Central
Google Scholar
Tipping CJ, Hodgson CL, Harrold M, Chan T, Holland AE. Frailty in patients with trauma who are critically Ill: a prospective observational study to determine feasibility, concordance, and construct and predictive validity of 2 frailty measures. Phys Ther. 2019;99(8):1089–97.
Article
PubMed
Google Scholar
Darvall JN, Greentree K, Braat MS, Story DA, Lim WK. Contributors to frailty in critical illness: multi-dimensional analysis of the Clinical Frailty Scale. J Crit Care. 2019;52:193–9.
Article
PubMed
Google Scholar
Bagshaw M, Majumdar SR, Rolfson DB, Ibrahim Q, McDermid RC, Stelfox HT. A prospective multicenter cohort study of frailty in younger critically ill patients. Crit Care. 2016;20(1):175.
Article
PubMed
PubMed Central
CAS
Google Scholar
Aliberti MJR, Szlejf C, Avelino-Silva VI, Suemoto CK, Apolinario D, Dias MB, Garcez FB, Trindade CB, Amaral J, de Melo LR, et al. COVID-19 is not over and age is not enough: using frailty for prognostication in hospitalized patients. J Am Geriatr Soc. 2021;69(5):1116–27.
Article
PubMed
PubMed Central
Google Scholar
Aw D, Woodrow L, Ogliari G, Harwood R. Association of frailty with mortality in older inpatients with Covid-19: a cohort study. Age Ageing. 2020;49(6):915–22.
Article
PubMed
Google Scholar
Paul E, Bailey M, Kasza J, Pilcher D. The ANZROD model: better benchmarking of ICU outcomes and detection of outliers. Crit Care Resusc. 2016;18(1):25–36.
PubMed
Google Scholar
Pilcher D, Paul E, Bailey M, Huckson S. The Australian and New Zealand Risk of Death (ANZROD) model: getting mortality prediction right for intensive care units. Crit Care Resusc. 2014;16(1):3–4.
PubMed
Google Scholar
DeLong ER, DeLong DM, Clarke-Pearson DL. Comparing the areas under two or more correlated receiver operating characteristic curves: a nonparametric approach. Biometrics. 1988;44(3):837–45.
Article
PubMed
CAS
Google Scholar
Ludwig M, Jacob J, Basedow F, Andersohn F, Walker J. Clinical outcomes and characteristics of patients hospitalized for Influenza or COVID-19 in Germany. Int J Infect Dis. 2021;103:316–22.
Article
PubMed
CAS
Google Scholar
Hernández-Cárdenas C, Lugo-Goytia G, Hernández-García D, Pérez-Padilla R. Comparison of the clinical characteristics and mortality in acute respiratory distress syndrome due to COVID-19 versus due to Influenza A-H1N1pdm09. Med Intensiva Engl Ed. 2021;11:e155044.
Google Scholar
Auvinen R, Nohynek H, Syrjänen R, Ollgren J, Kerttula T, Mäntylä J, Ikonen N, Loginov R, Haveri A, Kurkela S, et al. Comparison of the clinical characteristics and outcomes of hospitalized adult COVID-19 and influenza patients—a prospective observational study. Infect Dis (Lond). 2021;53(2):111–21.
Article
CAS
Google Scholar
Guidet B, Jung C, Flaatten H, Fjolner J, Artigas A, Pinto BB, Schefold JC, Beil M, Sigal S, van Heerden PV, et al. Increased 30-day mortality in very old ICU patients with COVID-19 compared to patients with respiratory failure without COVID-19. Intensive Care Med. 2022;48:435–47.
Article
PubMed
PubMed Central
CAS
Google Scholar
Tracking outcomes during the COVID-19 pandemic (August 2020)—Divergence within Australia https://csrm.cass.anu.edu.au/sites/default/files/docs/2020/9/Tracking_wellbeing_outcomes_during_the_COVID-19_pandemic_February_to_August_2020.pdf
Hussien H, Nastasa A, Apetrii M, Nistor I, Petrovic M, Covic A. Different aspects of frailty and COVID-19: points to consider in the current pandemic and future ones. BMC Geriatr. 2021;21(1):389.
Article
PubMed
PubMed Central
CAS
Google Scholar
Rottler M, Ocskay K, Sipos Z, Görbe A, Virág M, Hegyi P, Molnár T, Erőss B, Leiner T, Molnár Z. Clinical Frailty Scale (CFS) indicated frailty is associated with increased in-hospital and 30-day mortality in COVID-19 patients: a systematic review and meta-analysis. Ann Intensive Care. 2022;12(1):17.
Article
PubMed
PubMed Central
CAS
Google Scholar
Subramaniam A, Anstey C, Curtis JR, Ashwin S, Ponnapa Reddy M, Aliberti MJR, Avelino-Silva TJ, Welch C, Koduri G, Prowle JR, et al. Characteristics and outcomes of patients with frailty admitted to ICU with Coronavirus Disease 2019: an individual patient data meta-analysis. Crit Care Explor. 2022;4(1): e0616.
Article
PubMed
PubMed Central
Google Scholar
Subramaniam A, Shekar K, Afroz A, Ashwin S, Billah B, Brown H, Kundi H, Lim ZJ, Ponnapa Reddy M, Curtis JR. Frailty and mortality associations in patients with COVID-19: a systematic review and meta-analysis. Intern Med J. 2022;52:724–39.
Article
PubMed
PubMed Central
CAS
Google Scholar
Lim ZJ, Subramaniam A, Reddy MP, Blecher G, Kadam U, Afroz A, Billah B, Ashwin S, Kubicki M, Bilotta F, et al. Case fatality rates for COVID-19 patients requiring invasive mechanical ventilation: a meta-analysis. Am J Respir Crit Care Med. 2020;203:54–66.
Article
Google Scholar
Pilcher D, Coatsworth NR, Rosenow M, McClure J. A national system for monitoring intensive care unit demand and capacity: the Critical Health Resources Information System (CHRIS). Med J Aust. 2021;214(7):297–8.
Article
PubMed
PubMed Central
Google Scholar
ANZICS CORE: Report on COVID-19 admissions to Intensive Care in Australia 01 January 2021–31 December 2021. 2022:12.
Shield OC: COVID-19 vaccine roll-out. In. Edited by Government A. Canberra; 2021.