External validation of the first prognostic nomogram for older adults with cancer
| Autor: | Yu Ling Tay, Whee Sze Ong, Sherilyn Zi Hui Liew, Anupama Roy Chowdhury, Johan Chan, Mothi Babu Ramalingam, Tanujaa Rajasekaran, Tira J. Tan, Lalit Krishna, Olive Lai, Agnes Lai Yin Chow, Simon Chen, Ravindran Kanesvaran |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Therapeutic Advances in Medical Oncology, Vol 15 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1758-8359 17588359 |
| DOI: | 10.1177/17588359231198433 |
| Popis: | Background: The geriatric oncology population tends to be complex because of multimorbidity, functional and cognitive decline, malnutrition and social frailty. Prognostic indices for predicting survival of elderly cancer patients to guide treatment remain scarce. A nomogram based on all domains of the geriatric assessment was previously developed at the National Cancer Centre Singapore (NCCS) to predict overall survival (OS) in elderly cancer patients. This nomogram comprised of six variables (age, eastern cooperative oncology group performance status, disease stage, geriatric depression scale (GDS), DETERMINE nutritional index and serum albumin). Objectives: To externally validate the NCCS prognostic nomogram. Design: This is a prospective cohort study. Methods: The nomogram was developed based on a training cohort of 249 patients aged ⩾70 years who attended the NCCS outpatient geriatric oncology clinic between May 2007 and November 2010. External validation of the nomogram using the Royston and Altman approach was carried out on an independent testing cohort of 252 patients from the same clinic between July 2015 and June 2017. Model misspecification, discrimination and calibration were assessed. Results: Median OS of the testing cohort was 3.1 years, which was significantly higher than the corresponding 1.0 year for the training cohort (log-rank p |
| Databáze: | Directory of Open Access Journals |
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