Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients

The validated Palliative Prognostic (PaP) score predicts survival in terminally ill cancer patients, assigning patients to three different risk groups according to a 30-day survival probability: group A, >70%; group B, 30–70%; and group C, <30%. We aimed to develop and validate a PaP nomogram...

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Main Authors: Emanuela Scarpi, Oriana Nanni, Marco Maltoni
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/14/10/2510
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author Emanuela Scarpi
Oriana Nanni
Marco Maltoni
author_facet Emanuela Scarpi
Oriana Nanni
Marco Maltoni
author_sort Emanuela Scarpi
collection DOAJ
description The validated Palliative Prognostic (PaP) score predicts survival in terminally ill cancer patients, assigning patients to three different risk groups according to a 30-day survival probability: group A, >70%; group B, 30–70%; and group C, <30%. We aimed to develop and validate a PaP nomogram to provide individualized prediction of survival at 15, 30 and 60 days. Three cohorts of consecutive terminally ill cancer patients were used: one (<i>n</i> = 519) for nomogram development and internal validation, and a second (<i>n</i> = 451) and third (<i>n</i> = 549) for external validation. Multivariate analyses included dyspnea, anorexia, Karnofsky performance status, clinical prediction of survival, total white blood count and lymphocyte percentage. The predictive accuracy of the nomogram was determined by Harrell’s concordance index (95% CI), and calibration plots were generated. The nomogram had a concordance index of 0.74 (0.72–0.75) and showed good calibration. The internal validation showed no departures from ideal prediction. The accuracy of the nomogram at 15, 30 and 60 days was 74% (70–77), 89% (85–92) and 72% (68–76) in the external validation cohorts, respectively. The PaP nomogram predicts the individualized estimate of survival and could greatly facilitate clinical care decision-making at the end of life.
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spelling doaj.art-904975121db64ec488debf5d7e161d1b2023-11-23T10:24:12ZengMDPI AGCancers2072-66942022-05-011410251010.3390/cancers14102510Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer PatientsEmanuela Scarpi0Oriana Nanni1Marco Maltoni2Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, 47014 Meldola, ItalyUnit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, 47014 Meldola, ItalyMedical Oncology Unit, Department of Specialized, Experimental and Diagnostic Medicine (DIMES), University of Bologna, 40126 Bologna, ItalyThe validated Palliative Prognostic (PaP) score predicts survival in terminally ill cancer patients, assigning patients to three different risk groups according to a 30-day survival probability: group A, >70%; group B, 30–70%; and group C, <30%. We aimed to develop and validate a PaP nomogram to provide individualized prediction of survival at 15, 30 and 60 days. Three cohorts of consecutive terminally ill cancer patients were used: one (<i>n</i> = 519) for nomogram development and internal validation, and a second (<i>n</i> = 451) and third (<i>n</i> = 549) for external validation. Multivariate analyses included dyspnea, anorexia, Karnofsky performance status, clinical prediction of survival, total white blood count and lymphocyte percentage. The predictive accuracy of the nomogram was determined by Harrell’s concordance index (95% CI), and calibration plots were generated. The nomogram had a concordance index of 0.74 (0.72–0.75) and showed good calibration. The internal validation showed no departures from ideal prediction. The accuracy of the nomogram at 15, 30 and 60 days was 74% (70–77), 89% (85–92) and 72% (68–76) in the external validation cohorts, respectively. The PaP nomogram predicts the individualized estimate of survival and could greatly facilitate clinical care decision-making at the end of life.https://www.mdpi.com/2072-6694/14/10/2510cancer patientsend-of-lifehospicepalliative careprognosisprognostic score
spellingShingle Emanuela Scarpi
Oriana Nanni
Marco Maltoni
Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients
Cancers
cancer patients
end-of-life
hospice
palliative care
prognosis
prognostic score
title Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients
title_full Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients
title_fullStr Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients
title_full_unstemmed Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients
title_short Development and Validation of the PaP Score Nomogram for Terminally Ill Cancer Patients
title_sort development and validation of the pap score nomogram for terminally ill cancer patients
topic cancer patients
end-of-life
hospice
palliative care
prognosis
prognostic score
url https://www.mdpi.com/2072-6694/14/10/2510
work_keys_str_mv AT emanuelascarpi developmentandvalidationofthepapscorenomogramforterminallyillcancerpatients
AT orianananni developmentandvalidationofthepapscorenomogramforterminallyillcancerpatients
AT marcomaltoni developmentandvalidationofthepapscorenomogramforterminallyillcancerpatients