Development and validation of a prognostic nomogram for predicting cancer-specific survival after radical cystectomy in patients with bladder cancer:A population-based study

被引：24

作者：

Yang, Zhiqiang ^{[1
,2
]}

Bai, Yunjin ^{[1
]}

Liu, Maoying ^{[3
]}

Hu, Xu ^{[2
]}

Han, Ping ^{[1
]}

机构：

[1] Sichuan Univ, West China Hosp, Dept Urol, Chengdu 610041, Peoples R China

[2] Sichuan Univ, West China Hosp, West China Sch Med, Chengdu, Peoples R China

[3] Anyue Hengkang Hosp, Ziyang, Anyue County, Peoples R China

来源：

CANCER MEDICINE | 2020年 / 9卷 / 24期

关键词：

EXTERNAL VALIDATION; UROTHELIAL CARCINOMA; POSTOPERATIVE NOMOGRAMS; RECURRENCE; DISEASE; RISK; MORTALITY; CURVE;

D O I：

10.1002/cam4.3535

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Purpose To establish a prognostic model to estimate the cancer-specific survival (CSS) for urothelial carcinoma of bladder (UCB) patients after radical cystectomy (RC). Methods A total of 8650 candidates (2004-2011) obtained from the Surveillance, Epidemiology, and End Results (SEER) database were randomly split into development cohort (n = 4323) and validation cohort (n = 4327). We performed Cox regression analysis to identify prognostic factors and Kaplan-Meier analysis to assess survival outcome. A nomogram predicting CSS was constructed. Its performance was validated by calibration curves, the receiver operating characteristic (ROC) curves, concordance index (C-index), decision curve analysis (DCA), the net reclassification improvement (NRI), and the integrated discrimination improvement (IDI). Results The nomogram incorporated marital status, T stage, N stage, tumor size, and chemotherapy. In validation cohort, C-index of the nomogram was 0.707. AUC of the nomogram and AJCC stage were 0.767 versus 0.674. Calibration plots for 3- and 5-year CSS displayed good concordance. DCA curves of the nomogram exhibited larger benefits than the AJCC stage. The NRI and IDI indicated the nomogram outperformed AJCC stage. Conclusions We have established a prognostic nomogram with improved discriminative ability and clinical benefits for UCB patients after RC. The nomogram alongside an easy access web tool may assist clinicians in optimizing the postoperative management.

引用

页码：9303 / 9314

页数：12

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