A citation-based method for searching scientific literature

Alessandra Marengoni, Alberto Zucchelli, Davide Liborio Vetrano, Andrea Armellini, Emanuele Botteri, Franco Nicosia, Giuseppe Romanelli, Eva Andrea Beindorf, Paola Giansiracusa, Emirena Garrafa, Luigi Ferrucci, Laura Fratiglioni, Roberto Bernabei, Graziano Onder. J Gerontol A Biol Sci Med Sci 2021
Times Cited: 12







List of co-cited articles
54 articles co-cited >1



Times Cited
  Times     Co-cited
Similarity


The effect of frailty on survival in patients with COVID-19 (COPE): a multicentre, European, observational cohort study.
Jonathan Hewitt, Ben Carter, Arturo Vilches-Moraga, Terence J Quinn, Philip Braude, Alessia Verduri, Lyndsay Pearce, Michael Stechman, Roxanna Short, Angeline Price,[...]. Lancet Public Health 2020
150
50

Age, Frailty, and Comorbidity as Prognostic Factors for Short-Term Outcomes in Patients With Coronavirus Disease 2019 in Geriatric Care.
Sara Hägg, Juulia Jylhävä, Yunzhang Wang, Hong Xu, Carina Metzner, Martin Annetorp, Sara Garcia-Ptacek, Masih Khedri, Anne-Marie Boström, Ahmadul Kadir,[...]. J Am Med Dir Assoc 2020
36
41

Predictors of In-Hospital Mortality in Older Patients With COVID-19: The COVIDAge Study.
Aline Mendes, Christine Serratrice, François R Herrmann, Laurence Genton, Samuel Périvier, Max Scheffler, Thomas Fassier, Philippe Huber, Marie-Claire Jacques, Virginie Prendki,[...]. J Am Med Dir Assoc 2020
28
33

Divergent: Age, Frailty, and Atypical Presentations of COVID-19 in Hospitalized Patients.
Paula Cristina Eiras Poco, Márlon Juliano Romero Aliberti, Murilo Bacchini Dias, Silvia de Fatima Takahashi, Fabio Campos Leonel, Marcelo Altona, Amanda Lagreca Venys, Isabela Akie Shin-Ike, Bianca Aparecida Garcia, Leticia Harumi Sumita,[...]. J Gerontol A Biol Sci Med Sci 2021
7
57

The impact of delirium on outcomes for older adults hospitalised with COVID-19.
Alessandra Marengoni, Alberto Zucchelli, Giulia Grande, Laura Fratiglioni, Debora Rizzuto. Age Ageing 2020
20
33

A global clinical measure of fitness and frailty in elderly people.
Kenneth Rockwood, Xiaowei Song, Chris MacKnight, Howard Bergman, David B Hogan, Ian McDowell, Arnold Mitnitski. CMAJ 2005
33

The Effect of Age on Mortality in Patients With COVID-19: A Meta-Analysis With 611,583 Subjects.
Clara Bonanad, Sergio García-Blas, Francisco Tarazona-Santabalbina, Juan Sanchis, Vicente Bertomeu-González, Lorenzo Fácila, Albert Ariza, Julio Núñez, Alberto Cordero. J Am Med Dir Assoc 2020
77
25

Patient characteristics and predictors of mortality in 470 adults admitted to a district general hospital in England with Covid-19.
J V Thompson, N J Meghani, B M Powell, I Newell, R Craven, G Skilton, L J Bagg, I Yaqoob, M J Dixon, E J Evans,[...]. Epidemiol Infect 2020
10
30

Risk factors for death in adult COVID-19 patients: Frailty predicts fatal outcome in older patients.
Sara Tehrani, Anna Killander, Per Åstrand, Jan Jakobsson, Patrik Gille-Johnson. Int J Infect Dis 2021
13
25

Outcomes from COVID-19 across the range of frailty: excess mortality in fitter older people.
Amy Miles, Thomas E Webb, Benjamin C Mcloughlin, Imran Mannan, Arshad Rather, Paul Knopp, Daniel Davis. Eur Geriatr Med 2020
23
25

Clinical characteristics and progression of COVID-19 confirmed cases admitted to a single British clinical centre-A brief case series report.
Joanne Conway, Anna Gould, Richard Westley, Suneil A Raju, Anja Oklopcic, Alex Broadbent, Ahmed H Abdelhafiz. Int J Clin Pract 2021
3
100

Atypical presentations in the hospitalised older adult testing positive for SARS-CoV-2: a retrospective observational study in Glasgow, Scotland.
Peter Davis, Rory Gibson, Emily Wright, Amy Bryan, Jamie Ingram, Ren Ping Lee, Jon Godwin, Tom Evans, Elizabeth Burleigh, Steven Wishart,[...]. Scott Med J 2021
6
50

Comparing associations between frailty and mortality in hospitalised older adults with or without COVID-19 infection: a retrospective observational study using electronic health records.
Rhiannon K Owen, Simon P Conroy, Nicholas Taub, Will Jones, Daniele Bryden, Manish Pareek, Christina Faull, Keith R Abrams, Daniel Davis, Jay Banerjee. Age Ageing 2021
27
25

Characteristics and outcomes of patients with COVID-19 at a district general hospital in Surrey, UK.
Harry Knights, Nikhil Mayor, Kristina Millar, Matthew Cox, Evgeniya Bunova, Morgan Hughes, Jack Baker, Sanju Mathew, David Russell-Jones, Aleksandra Kotwica. Clin Med (Lond) 2020
8
37

Frailty in elderly people.
Andrew Clegg, John Young, Steve Iliffe, Marcel Olde Rikkert, Kenneth Rockwood. Lancet 2013
25

Association of frailty with mortality in older inpatients with Covid-19: a cohort study.
Darren Aw, Lauren Woodrow, Giulia Ogliari, Rowan Harwood. Age Ageing 2020
32
25

Prediction for Progression Risk in Patients With COVID-19 Pneumonia: The CALL Score.
Dong Ji, Dawei Zhang, Jing Xu, Zhu Chen, Tieniu Yang, Peng Zhao, Guofeng Chen, Gregory Cheng, Yudong Wang, Jingfeng Bi,[...]. Clin Infect Dis 2020
204
25

COVID-19 in solid organ transplant recipients: a single-center experience.
Rogier A S Hoek, Olivier C Manintveld, Michiel G H Betjes, Merel E Hellemons, Leonard Seghers, Jeroen A A Van Kampen, Kadir Caliskan, Jacqueline van de Wetering, Martijn van den Hoogen, Herold J Metselaar,[...]. Transpl Int 2020
47
25

Factors Associated With Surgical Mortality and Complications Among Patients With and Without Coronavirus Disease 2019 (COVID-19) in Italy.
Francesco Doglietto, Marika Vezzoli, Federico Gheza, Gian Luca Lussardi, Marco Domenicucci, Luca Vecchiarelli, Luca Zanin, Giorgio Saraceno, Liana Signorini, Pier Paolo Panciani,[...]. JAMA Surg 2020
67
25

Frailty and Mortality in Hospitalized Older Adults With COVID-19: Retrospective Observational Study.
Robert De Smet, Bea Mellaerts, Hannelore Vandewinckele, Peter Lybeert, Eric Frans, Sara Ombelet, Wim Lemahieu, Rolf Symons, Erwin Ho, Johan Frans,[...]. J Am Med Dir Assoc 2020
51
25

Older age and frailty are the chief predictors of mortality in COVID-19 patients admitted to an acute medical unit in a secondary care setting- a cohort study.
Rajkumar Chinnadurai, Onesi Ogedengbe, Priya Agarwal, Sally Money-Coomes, Ahmad Z Abdurrahman, Sajeel Mohammed, Philip A Kalra, Nicola Rothwell, Sweta Pradhan. BMC Geriatr 2020
18
25

Cause-specific death in hospitalized individuals infected with SARS-CoV-2: more than just acute respiratory failure or thromboembolic events.
Marta Cobos-Siles, Pablo Cubero-Morais, Irene Arroyo-Jiménez, María Rey-Hernández, Laura Hernández-Gómez, Derly Judith Vargas-Parra, María González-Fernández, Marina Cazorla-González, Miriam Gabella-Martín, Tomás Ruíz-Albi,[...]. Intern Emerg Med 2020
8
37

COVID-19: a retrospective cohort study with focus on the over-80s and hospital-onset disease.
Simon E Brill, Hannah C Jarvis, Ezgi Ozcan, Thomas L P Burns, Rabia A Warraich, Lisa J Amani, Amina Jaffer, Stephanie Paget, Anand Sivaramakrishnan, Dean D Creer. BMC Med 2020
25
25

Atypical presentations of COVID-19 in care home residents presenting to secondary care: A UK single centre study.
Mark James Rawle, Deborah Lee Bertfield, Simon Edward Brill. Aging Med (Milton) 2020
10
30

Preexisting Comorbidities Predicting COVID-19 and Mortality in the UK Biobank Community Cohort.
Janice L Atkins, Jane A H Masoli, Joao Delgado, Luke C Pilling, Chia-Ling Kuo, George A Kuchel, David Melzer. J Gerontol A Biol Sci Med Sci 2020
108
16

The role of Frailty on Adverse Outcomes Among Older Patients with COVID-19.
Harun Kundi, Elif Hande Özcan Çetin, Uğur Canpolat, Sevgi Aras, Osman Celik, Naim Ata, Suayip Birinci, Serkan Çay, Özcan Özeke, Ibrahim Halil Tanboğa,[...]. J Infect 2020
17
16

Quantifying heterogeneity in a meta-analysis.
Julian P T Higgins, Simon G Thompson. Stat Med 2002
16

Probable delirium is a presenting symptom of COVID-19 in frail, older adults: a cohort study of 322 hospitalised and 535 community-based older adults.
Maria Beatrice Zazzara, Rose S Penfold, Amy L Roberts, Karla A Lee, Hannah Dooley, Carole H Sudre, Carly Welch, Ruth C E Bowyer, Alessia Visconti, Massimo Mangino,[...]. Age Ageing 2021
22
16

Prognostication in older ICU patients: mission impossible?
Hans Flaatten, Michael Beil, Bertrand Guidet. Br J Anaesth 2020
3
66


Frailty status at admission to hospital predicts multiple adverse outcomes.
Ruth E Hubbard, Nancye M Peel, Mayukh Samanta, Leonard C Gray, Arnold Mitnitski, Kenneth Rockwood. Age Ageing 2017
73
16

Standard set of health outcome measures for older persons.
Asangaedem Akpan, Charlotte Roberts, Karen Bandeen-Roche, Barbara Batty, Claudia Bausewein, Diane Bell, David Bramley, Julie Bynum, Ian D Cameron, Liang-Kung Chen,[...]. BMC Geriatr 2018
53
16

Acute Care of Older Patients with COVID-19: Clinical Characteristics and Outcomes.
Zara Steinmeyer, Sara Vienne-Noyes, Marc Bernard, Armand Steinmeyer, Laurent Balardy, Antoine Piau, Sandrine Sourdet. Geriatrics (Basel) 2020
5
40

Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: development and validation of the 4C Mortality Score.
Stephen R Knight, Antonia Ho, Riinu Pius, Iain Buchan, Gail Carson, Thomas M Drake, Jake Dunning, Cameron J Fairfield, Carrol Gamble, Christopher A Green,[...]. BMJ 2020
126
16

Frailty and COVID-19: A Systematic Scoping Review.
Giuseppe Maltese, Andrea Corsonello, Mirko Di Rosa, Luca Soraci, Cristiana Vitale, Francesco Corica, Fabrizia Lattanzio. J Clin Med 2020
28
16

Ethnicity and outcomes in patients hospitalised with COVID-19 infection in East London: an observational cohort study.
Vanessa J Apea, Yize I Wan, Rageshri Dhairyawan, Zudin A Puthucheary, Rupert M Pearse, Chloe M Orkin, John R Prowle. BMJ Open 2021
12
16

The predictive properties of frailty-rating scales in the acute medical unit.
Franklin Wou, John R F Gladman, Lucy Bradshaw, Matthew Franklin, Judi Edmans, Simon Paul Conroy. Age Ageing 2013
75
16

Utility of established prognostic scores in COVID-19 hospital admissions: multicentre prospective evaluation of CURB-65, NEWS2 and qSOFA.
Patrick Bradley, Freddy Frost, Kukatharmini Tharmaratnam, Daniel G Wootton. BMJ Open Respir Res 2020
11
18

The Palliative Performance Scale predicts mortality in hospitalized patients with COVID-19.
Michele Fiorentino, Sri Ram Pentakota, Anne C Mosenthal, Nina E Glass. Palliat Med 2020
8
25


COVID-19 in elderly kidney transplant recipients.
Marta Crespo, María J Pérez-Sáez, Dolores Redondo-Pachón, Laura Llinàs-Mallol, María M Montero, Judith Villar-García, Carlos Arias-Cabrales, Anna Buxeda, Carla Burballa, Susana Vázquez,[...]. Am J Transplant 2020
33
16

The impact of frailty on intensive care unit outcomes: a systematic review and meta-analysis.
John Muscedere, Braden Waters, Aditya Varambally, Sean M Bagshaw, J Gordon Boyd, David Maslove, Stephanie Sibley, Kenneth Rockwood. Intensive Care Med 2017
238
16

Baseline Characteristics and Outcomes of 1591 Patients Infected With SARS-CoV-2 Admitted to ICUs of the Lombardy Region, Italy.
Giacomo Grasselli, Alberto Zangrillo, Alberto Zanella, Massimo Antonelli, Luca Cabrini, Antonio Castelli, Danilo Cereda, Antonio Coluccello, Giuseppe Foti, Roberto Fumagalli,[...]. JAMA 2020
16

Increased care at discharge from COVID-19: The association between pre-admission frailty and increased care needs after hospital discharge; a multicentre European observational cohort study.
A Vilches-Moraga, A Price, P Braude, L Pearce, R Short, A Verduri, M Stechman, J T Collins, E Mitchell, A G Einarsson,[...]. BMC Med 2020
5
40

Presenting Characteristics, Comorbidities, and Outcomes Among 5700 Patients Hospitalized With COVID-19 in the New York City Area.
Safiya Richardson, Jamie S Hirsch, Mangala Narasimhan, James M Crawford, Thomas McGinn, Karina W Davidson, Douglas P Barnaby, Lance B Becker, John D Chelico, Stuart L Cohen,[...]. JAMA 2020
16

COVID-19: a major cause of cachexia and sarcopenia?
John E Morley, Kamyar Kalantar-Zadeh, Stefan D Anker. J Cachexia Sarcopenia Muscle 2020
39
16

Neurologic Features in Severe SARS-CoV-2 Infection.
Julie Helms, Stéphane Kremer, Hamid Merdji, Raphaël Clere-Jehl, Malika Schenck, Christine Kummerlen, Olivier Collange, Clotilde Boulay, Samira Fafi-Kremer, Mickaël Ohana,[...]. N Engl J Med 2020
925
16

Editorial: COVID-19 Spiraling of Frailty in Older Italian Patients.
A M Abbatecola, R Antonelli-Incalzi. J Nutr Health Aging 2020
40
16


Frailty in older adults: evidence for a phenotype.
L P Fried, C M Tangen, J Walston, A B Newman, C Hirsch, J Gottdiener, T Seeman, R Tracy, W J Kop, G Burke,[...]. J Gerontol A Biol Sci Med Sci 2001
16


Co-cited is the co-citation frequency, indicating how many articles cite the article together with the query article. Similarity is the co-citation as percentage of the times cited of the query article or the article in the search results, whichever is the lowest. These numbers are calculated for the last 100 citations when articles are cited more than 100 times.