Nomogram for individually predicting overall survival in rectal neuroendocrine tumours

Abstract Background This study aimed to develop a nomogram that predicts the overall survival (OS) of rectal neuroendocrine tumours (NETs). Methods We retrospectively analysed 310 patients with rectal neuroendocrine tumours in 5 hospitals in southern China. All of the patients were assigned to the t...

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Main Authors: Xingyu Feng, Gengzhou Wei, Wei Wang, Yu Zhang, Yujie Zeng, Minhu Chen, Ye Chen, Jie Chen, Zhiwei Zhou, Yong Li
Format: Article
Language:English
Published: BMC 2020-09-01
Series:BMC Cancer
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12885-020-07328-9
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author Xingyu Feng
Gengzhou Wei
Wei Wang
Yu Zhang
Yujie Zeng
Minhu Chen
Ye Chen
Jie Chen
Zhiwei Zhou
Yong Li
author_facet Xingyu Feng
Gengzhou Wei
Wei Wang
Yu Zhang
Yujie Zeng
Minhu Chen
Ye Chen
Jie Chen
Zhiwei Zhou
Yong Li
author_sort Xingyu Feng
collection DOAJ
description Abstract Background This study aimed to develop a nomogram that predicts the overall survival (OS) of rectal neuroendocrine tumours (NETs). Methods We retrospectively analysed 310 patients with rectal neuroendocrine tumours in 5 hospitals in southern China. All of the patients were assigned to the training set. A multivariable analysis using Cox proportional hazards regression was performed using the training set, and a nomogram was constructed. It was validated on a dataset obtained from the Surveillance, Epidemiology, and End Result (SEER) database of America (n = 547). Results In the training set, the nomogram exhibited improved discrimination power compared with the WHO grade guidelines (Herrell’s C-index, 0.872 vs 0.794; p < 0.001) and was also better than the seventh AJCC TNM classification (Herrell’s C-index, 0.872 vs 0.817; p < 0.001). In the SEER validation dataset, the discrimination was also excellent (C-index, 0.648 vs 0.583, p < 0.001 and 0.648 vs 0.603, p = 0.016, respectively, compared with G grade and TNM classification). Calibration of the nomogram predicted individual survival corresponding closely with the actual survival. Conclusions We developed a nomogram predicting 1- and 3-year OS of patients with rectal neuroendocrine tumours. Validation revealed excellent discrimination and calibration, suggesting good clinical utility.
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spelling doaj.art-a0a11ca25d454921b4ed95e8d8f5a7742022-12-21T17:58:29ZengBMCBMC Cancer1471-24072020-09-012011710.1186/s12885-020-07328-9Nomogram for individually predicting overall survival in rectal neuroendocrine tumoursXingyu Feng0Gengzhou Wei1Wei Wang2Yu Zhang3Yujie Zeng4Minhu Chen5Ye Chen6Jie Chen7Zhiwei Zhou8Yong Li9Department of General Surgery, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, The Second School of Clinical Medicine, Southern Medical UniversityDepartment of Emergency Medicine, Department of Emergency and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical SciencesDepartment of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineDepartment of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastrointestinal Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, Nanfang Hospital of Southern Medical University, Guangdong Provincial Key Laboratory of GastroenterologyDepartment of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer MedicineDepartment of General Surgery, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, The Second School of Clinical Medicine, Southern Medical UniversityAbstract Background This study aimed to develop a nomogram that predicts the overall survival (OS) of rectal neuroendocrine tumours (NETs). Methods We retrospectively analysed 310 patients with rectal neuroendocrine tumours in 5 hospitals in southern China. All of the patients were assigned to the training set. A multivariable analysis using Cox proportional hazards regression was performed using the training set, and a nomogram was constructed. It was validated on a dataset obtained from the Surveillance, Epidemiology, and End Result (SEER) database of America (n = 547). Results In the training set, the nomogram exhibited improved discrimination power compared with the WHO grade guidelines (Herrell’s C-index, 0.872 vs 0.794; p < 0.001) and was also better than the seventh AJCC TNM classification (Herrell’s C-index, 0.872 vs 0.817; p < 0.001). In the SEER validation dataset, the discrimination was also excellent (C-index, 0.648 vs 0.583, p < 0.001 and 0.648 vs 0.603, p = 0.016, respectively, compared with G grade and TNM classification). Calibration of the nomogram predicted individual survival corresponding closely with the actual survival. Conclusions We developed a nomogram predicting 1- and 3-year OS of patients with rectal neuroendocrine tumours. Validation revealed excellent discrimination and calibration, suggesting good clinical utility.http://link.springer.com/article/10.1186/s12885-020-07328-9Rectal neoplasmsNeuroendocrine tumoursNomogramOverall survival
spellingShingle Xingyu Feng
Gengzhou Wei
Wei Wang
Yu Zhang
Yujie Zeng
Minhu Chen
Ye Chen
Jie Chen
Zhiwei Zhou
Yong Li
Nomogram for individually predicting overall survival in rectal neuroendocrine tumours
BMC Cancer
Rectal neoplasms
Neuroendocrine tumours
Nomogram
Overall survival
title Nomogram for individually predicting overall survival in rectal neuroendocrine tumours
title_full Nomogram for individually predicting overall survival in rectal neuroendocrine tumours
title_fullStr Nomogram for individually predicting overall survival in rectal neuroendocrine tumours
title_full_unstemmed Nomogram for individually predicting overall survival in rectal neuroendocrine tumours
title_short Nomogram for individually predicting overall survival in rectal neuroendocrine tumours
title_sort nomogram for individually predicting overall survival in rectal neuroendocrine tumours
topic Rectal neoplasms
Neuroendocrine tumours
Nomogram
Overall survival
url http://link.springer.com/article/10.1186/s12885-020-07328-9
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