Cited by 5Machine Learning in HealthcareCOVID-19 Clinical Research StudiesArtificial Intelligence in Healthcare

Early outcome detection for COVID-19 patients

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Sîrbu, Alina, Barbieri, Greta, Faita, Francesco, Ferragina, Paolo, Gargani, Luna, Ghiadoni, Lorenzo, Priami, Corrado·2021·Scientific Reports

Abstract

With the outbreak of COVID-19 exerting a strong pressure on hospitals and health facilities, clinical decision support systems based on predictive models can help to effectively improve the management of the pandemic. We present a method for predicting mortality for COVID-19 patients. Starting from a large number of clinical variables, we select six of them with largest predictive power, using a feature selection method based on genetic algorithms and starting from a set of COVID-19 patients from the first wave. The algorithm is designed to reduce the impact of missing values in the set of variables measured, and consider only variables that show good accuracy on validation data. The final predictive model provides accuracy larger than 85% on test data, including a new patient cohort from the second COVID-19 wave, and on patients with imputed missing values. The selected clinical variables are confirmed to be relevant by recent literature on COVID-19.

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  • Alternative approaches to COVID-19 triage use radiological imaging, which is less readily available and involves patient exposure to ionising radiation, or infrequently requested laboratory predicting markers, such as IL-6.

    “By contrast, alternative approaches to COVID-19 triage use radiological imaging, which is less readily available and involves patient exposure to ionising radiation,22 or infrequently requested laboratory predicting markers, such as IL-6.23, 24”

    From Real-world evaluation of rapid and laboratory-free COVID-19 triage for emergency care: external validation and pilot deployment of artificial intelligence driven screening (2022) · cites this paper as [24]

    The Discussion says clinical variables were measured inconsistently across patients, and Table 7 (Results > Interpretability; page not available) lists IL6 among the variables considered. The paper does not specifically say IL-6 was infrequently requested or establish it as a predictive marker; its selected predictors do not include IL-6. The imaging clause is attached to a different citation. (LLM, conf=0.76)

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Research works printed but not linked: 49

  1. [2]Nishiga M Wang DW Han Y Lewis DB Wu JC Covid-19 and cardiovascular disease: From basic mechanisms to clinical perspectives Nat. Rev. Cardiol. 2020 17 1 16 10.1038/s41569-020-0413-9 32690910 PMC7370876 · DOI
  2. [3]Gupta A Extrapulmonary manifestations of covid-19 Nat. Med. 2020 26 7 1017 1032 10.1038/s41591-020-0968-3 32651579 PMC11972613 · DOI · Paper page
  3. [4]Zheng Z Risk factors of critical & mortal covid-19 cases: A systematic literature review and meta-analysis J. Infect. 2020 81 e16 e25 10.1016/j.jinf.2020.04.021 32335169 PMC7177098 · DOI · Paper page
  4. [5]Liu F Clinical characteristics and corticosteroids application of different clinical types in patients with corona virus disease 2019 Sci. Rep. 2020 10 1 1 9 10.1038/s41598-019-56847-4 32792492 PMC7426825 · DOI
  5. [6]Di Castelnuovo A Common cardiovascular risk factors and in-hospital mortality in 3894 patients with covid-19: Survival analysis and machine learning-based findings from the multicentre italian corist study Nutr. Metab. Cardiovasc. Dis. 2020 30 11 1899 1913 10.1016/j.numecd.2020.07.031 32912793 PMC7833278 · DOI
  6. [7]Guo W Li M Dong Y Zhou H Zhang Z Tian C Qin R Wang H Shen Y Du K Diabetes is a risk factor for the progression and prognosis of covid-19 Diabetes Metab. Res. Rev. 2020 36 e3319 10.1002/dmrr.3319 PMC7228407 32233013 · DOI · Paper page
  7. [8]Di Castelnuovo A Use of hydroxychloroquine in hospitalised covid-19 patients is associated with reduced mortality: Findings from the observational multicentre Italian corist study Eur. J. Intern. Med. 2020 82 38 47 10.1016/j.ejim.2020.08.019 32859477 PMC7446618 · DOI
  8. [9]Doshi, Peter. Will covid-19 vaccines save lives? Current trials aren’t designed to tell us. BMJ371, m4037 (2020). 33087398
  9. [10]Schwartz JL Equitable global access to coronavirus disease vaccines BMJ 2019 371 2020 33323384
  10. [11]Sanders JM Monogue ML Jodlowski TZ Cutrell JB Pharmacologic treatments for coronavirus disease 2019 (covid-19): a review Jama 2020 323 18 1824 1836 32282022
  11. [13]Shi F Wang J Shi J Wu Z Wang Q Tang Z He K Shi Y Shen D Review of artificial intelligence techniques in imaging data acquisition, segmentation and diagnosis for covid-19 IEEE Rev. Biomed. Eng. 2020 14 4 15 10.1109/RBME.2020.2987975 32305937 · DOI · Paper page
  12. [14]Goodman-Meza D A machine learning algorithm to increase covid-19 inpatient diagnostic capacity PLoS ONE 2020 15 9 e0239474 10.1371/journal.pone.0239474 32960917 PMC7508387 · DOI
  13. [15]Plante TB Development and external validation of a machine learning tool to rule out covid-19 among adults in the emergency department using routine blood tests: A large, multicenter, real-world study J. Med. Internet Res. 2020 22 12 e24048 10.2196/24048 33226957 PMC7713695 · DOI
  14. [16]Soltan AAS Kouchaki S Zhu T Kiyasseh D Taylor T Hussain ZB Peto T Brent AJ Eyre DW Clifton DA Rapid triage for covid-19 using routine clinical data for patients attending hospital: Development and prospective validation of an artificial intelligence screening test Lancet Digit. Health 2020 3 e78 e87 10.1016/S2589-7500(20)30274-0 33509388 PMC7831998 · DOI · Paper page
  15. [17]Booth AL Abels E McCaffrey P Development of a prognostic model for mortality in covid-19 infection using machine learning Mod. Pathol. 2020 34 1 10 33067522 PMC7567420
  16. [18]Gao Y Machine learning based early warning system enables accurate mortality risk prediction for covid-19 Nat. Commun. 2020 11 1 1 10 10.1038/s41467-019-13993-7 33024092 PMC7538910 · DOI · Paper page
  17. [19]Izquierdo, J. L., Ancochea, J., Soriano, J. B. & Savana COVID-19 Research Group, et al. Clinical characteristics and prognostic factors for intensive care unit admission of patients with covid-19: Retrospective study using machine learning and natural language processing. J. Med. Internet Res.22(10), e21801 (2020). PMC7595750 33090964
  18. [20]Ji D Zhang D Xu J Chen Z Yang T Zhao P Chen G Cheng G Wang Y Bi J Tan L Prediction for progression risk in patients with COVID-19 pneumonia: The CALL score Clin. Infect. Dis. 2020 71 1393 1399 10.1093/cid/ciaa414 32271369 PMC7184473 · DOI
  19. [21]Vaid A Machine learning to predict mortality and critical events in a cohort of patients with covid-19 in New York City: Model development and validation J. Med. Internet Res. 2020 22 11 e24018 10.2196/24018 33027032 PMC7652593 · DOI
  20. [22]Yadaw AS Li Y-C Bose S Iyengar R Bunyavanich S Pandey G Clinical features of covid-19 mortality: Development and validation of a clinical prediction model Lancet Digit. Health 2020 2 10 e516 e525 10.1016/S2589-7500(20)30217-X 32984797 PMC7508513 · DOI
  21. [23]Yan L Zhang H-T Goncalves J Xiao Y Wang M Guo Y Sun C Tang X Jiang L Zhang M An interpretable mortality prediction model for covid-19 patients Nat. Mach. Intell. 2020 2 1 6 10.1038/s42256-020-0144-y · DOI
  22. [24]Leeuwenberg Artuur M Schuit Ewoud Prediction models for covid-19 clinical decision making Lancet Digit. Health 2020 2 10 e496 e497 10.1016/S2589-7500(20)30226-0 32984794 PMC7508517 · DOI
  23. [25]Wynants L Van Calster B Bonten MMJ Collins GS Debray TPA De Vos M Haller MC Heinze G Moons KGM Riley RD Prediction models for diagnosis and prognosis of covid-19 infection: Systematic review and critical appraisal bmj 2020 369 m1328 10.1136/bmj.m1328 32265220 PMC7222643 · DOI · Paper page
  24. [26]Barbieri G Spinelli S Filippi M Foltran F Giraldi M Martino MC Cipriano A Cinotti F Santini M Ghiadoni L Covid-19 pandemic management at the emergency department: The changing scenario at the university hospital of Pisa Emerg. Care J. 2020 16 2 108 113 10.4081/ecj.2020.9146 · DOI
  25. [27]Falcone, M., Tiseo, G., Barbieri, G., Galfo, V., Russo, A., Virdis, A., Forfori, F., Corradi, F., Guarracino, F. & Carrozzi, L. et al. Role of low-molecular-weight heparin in hospitalized patients with severe acute respiratory syndrome coronavirus 2 pneumonia: A prospective observational study. In Open forum infectious diseases, vol. 7, p. aa563. Oxford University Press US (2020). PMC7717381 33365358
  26. [28]Chakravarty D Sex differences in sars-cov-2 infection rates and the potential link to prostate cancer Commun. Biol. 2020 3 1 1 12 10.1038/s42003-020-1088-9 32641750 PMC7343823 · DOI
  27. [29]Kon ZN Smith DE Chang SH Goldenberg RM Angel LF Carillo JA Geraci TC Cerfolio RJ Montgomery RA Moazami N Extracorporeal membrane oxygenation support in severe covid-19 Ann. Thorac. Surg. 2020 111 537 543 10.1016/j.athoracsur.2020.07.002 32687823 PMC7366119 · DOI
  28. [30]Ziehr DR Alladina J Petri CR Maley JH Moskowitz A Medoff BD Hibbert KA Thompson BT Corey Hardin C Respiratory pathophysiology of mechanically ventilated patients with covid-19: A cohort study Am. J. Respir. Crit. Care Med. 2020 201 1560 1564 10.1164/rccm.202004-1163LE 32348678 PMC7301734 · DOI
  29. [31]Leung JM Ace-2 expression in the small airway epithelia of smokers and copd patients: implications for covid-19 Eur. Respir. J. 2020 55 5 2000688 10.1183/13993003.00688-2020 32269089 PMC7144263 · DOI
  30. [32]Pranata R Effect of chronic obstructive pulmonary disease and smoking on the outcome of covid-19 Int. J. Tuberc. Lung Dis. 2020 24 8 838 843 10.5588/ijtld.20.0278 32912389 · DOI
  31. [33]Wang B Li R Zhong L Huang Y Does comorbidity increase the risk of patients with covid-19: Evidence from meta-analysis Aging (Albany NY) 2020 12 7 6049 10.18632/aging.103000 32267833 PMC7185114 · DOI · Paper page
  32. [34]Merrill JT Erkan D Winakur J James JA Emerging evidence of a covid-19 thrombotic syndrome has treatment implications Nat. Rev. Rheumatol. 2020 16 581 589 10.1038/s41584-020-0474-5 32733003 PMC7391481 · DOI
  33. [35]Shaobo Shi M Characteristics and clinical significance of myocardial injury in patients with severe coronavirus disease 2019 Eur. Heart J. 2020 41 22 2070 2079 10.1093/eurheartj/ehaa408 32391877 PMC7239100 · DOI
  34. [36]Shi S Qin M Shen B Cai Y Liu T Yang F Gong W Liu X Liang J Zhao Q Association of cardiac injury with mortality in hospitalized patients with covid-19 in Wuhan, China JAMA Cardiol. 2020 5 802 810 10.1001/jamacardio.2020.0950 32211816 PMC7097841 · DOI · Paper page
  35. [37]Shibata S Arima H Asayama K Hoshide S Ichihara A Ishimitsu T Kario K Kishi T Mogi M Nishiyama A Hypertension and related diseases in the era of covid-19: A report from the Japanese society of hypertension task force on covid-19 Hypertens. Res. 2020 43 1 19 10.1038/s41440-020-0515-0 PMC7393334 32737423 · DOI
  36. [38]Cheng Y Kidney disease is associated with in-hospital death of patients with covid-19 Kidney Int. 2020 97 829 838 10.1016/j.kint.2020.03.005 32247631 PMC7110296 · DOI
  37. [39]Zaim, S., Chong, J. H., Sankaranarayanan, V. & Harky, A. Covid-19 and multi-organ response. Curr. Probl. Cardiol. 100618 (2020). PMC7187881 32439197
  38. [40]Hosseini M Powell M Collins J Callahan-Flintoft C Jones W Bowman H Wyble B I tried a bunch of things: The dangers of unexpected overfitting in classification of brain data Neurosci. Biobehav. Rev. 2020 119 456 467 10.1016/j.neubiorev.2020.09.036 33035522 · DOI · Paper page
  39. [41]Guyon Isabelle Weston Jason Barnhill Stephen Vapnik Vladimir Gene selection for cancer classification using support vector machines Mach. Learn. 2002 46 1 389 422 10.1023/A:1012487302797 · DOI · Paper page
  40. [42]Futoma Joseph Simons Morgan Panch Trishan Doshi-Velez Finale Celi Leo Anthony The myth of generalisability in clinical research and machine learning in health care Lancet Digit. Health 2020 2 9 e489 e492 10.1016/S2589-7500(20)30186-2 32864600 PMC7444947 · DOI · Paper page
  41. [44]Mitchell M An Introduction to Genetic Algorithms 1998 Cambridge MIT Press
  42. [45]Amini F Guiping H A two-layer feature selection method using genetic algorithm and elastic net Expert Syst. Appl. 2021 166 114072 10.1016/j.eswa.2020.114072 · DOI
  43. [46]Li A-D Xue B Zhang M Multi-objective feature selection using hybridization of a genetic algorithm and direct multisearch for key quality characteristic selection Inf. Sci. 2020 523 245 265 10.1016/j.ins.2020.03.032 · DOI
  44. [47]Maleki N Zeinali Y Niaki STA A k-nn method for lung cancer prognosis with the use of a genetic algorithm for feature selection Expert Syst. Appl. 2021 164 113981 10.1016/j.eswa.2020.113981 · DOI
  45. [48]Reali F Priami C Marchetti L Optimization algorithms for computational systems biology Front. Appl. Math. Stat. 2017 3 6 10.3389/fams.2017.00006 · DOI
  46. [49]Hosmer DW Jr Lemeshow S Sturdivant RX Applied Logistic Regression 2013 New York Wiley
  47. [50]Mitchell TM Machine Learning 1997 New York McGraw-hill
  48. [51]Biau G Scornet E A random forest guided tour Test 2016 25 2 197 227 10.1007/s11749-016-0481-7 · DOI · Paper page
  49. [52]Manning CD Schutze H Raghavan P Introduction to Information Retrieval 2008 Cambridge Cambridge University Press

Cited by

Sorted by citations

Authors
Sîrbu, A., Barbieri, G., Faita, F., Ferragina, P., Gargani, L., Ghiadoni, L., & Priami, C.
Affiliations
  • University of Pisa (IT)
  • Istituto di Fisiologia Clinica (IT)
Corresponding author
Sîrbu, Alina
Venue
Scientific Reports
Published
2021-09-16
Volume
11
Issue
1
Pages
18464-18464
ISSN
2045-2322 (ISSN-L)
OpenAlex
W3200013141
Cited by
5
References
2
Citations by year
2023: 2 · 2022: 3
FWCI
0.44
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion, cc-by)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • CINECA IRIS Institutional Research Information System (Sant'Anna School of Advanced Studies) (submittedVersion)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning in Healthcare
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
Keywords
COVID-19 pandemic, mortality prediction, clinical decision support, genetic algorithm feature selection, missing data imputation, early outcome prediction, clinical factors, clinical prediction model
MeSH terms
Machine Learning, COVID-19, Algorithms, Humans, Models, Theoretical, Mortality, Cohort Studies, Decision Support Systems, Clinical

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