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Use of clinical nomograms for predicting survival outcomes in young women with breast cancer

  • Authors:
    • Hui Lin
    • Fan Zhang
    • Luanhong Wang
    • De Zeng

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  • Published online on: November 28, 2018     https://doi.org/10.3892/ol.2018.9772
  • Pages: 1505-1516

  • Copyright : © Lin et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY 4.0].

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Abstract

Early‑onset breast cancer (BC) has been recognized to be more aggressive compared with its later counterparts. Survival models of BC in young patients have rarely been reported in previous studies. The current study aimed to establish and validate prediction models with clinicopathological variables for visceral metastasis‑free survival (VFS), disease‑free‑survival (DFS) and overall survival (OS) time in young patients with BC. Clinicopathological data were obtained for 351 patients with primary breast tumors who were ≤40 years old. Univariate and multivariate analyses were performed and nomograms were established to screen and illustrate the prognostic factors. Risk scores were calculated based on coefficients from the Cox regression analysis. Internal validation of the prediction models was conducted by predicting the prognosis of cases randomly sampled from the cohort used in the current study. Multivariate analysis demonstrated that N stage (P=0.004), molecular subtype (P=0.007) and age (P=0.005) were significant independent prognostic factors for VFS. Similarly, N stage (P=0.002) and molecular subtype (P=0.001) were significantly associated with DFS. In addition, N stage (P=0.006), molecular subtype (P=0.006) and the presence of an initially inoperable tumor (P=0.005) were significant independent prognostic factors for OS. According to the Cox regression analysis, nomograms were generated to illustrate the effect of independent prognostic factors on VFS, DFS and OS. Risk scores were calculated and internal validation demonstrated the reliability of the prediction models. In conclusion, N stage and molecular subtype were identified as predictors for VFS, DFS and OS in early‑onset BC. Furthermore, an age of <35 years at diagnosis was revealed to be unfavorable for VFS and the presence of an initially inoperable tumor was identified to reduce OS time.
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February-2019
Volume 17 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Lin H, Zhang F, Wang L and Zeng D: Use of clinical nomograms for predicting survival outcomes in young women with breast cancer. Oncol Lett 17: 1505-1516, 2019
APA
Lin, H., Zhang, F., Wang, L., & Zeng, D. (2019). Use of clinical nomograms for predicting survival outcomes in young women with breast cancer. Oncology Letters, 17, 1505-1516. https://doi.org/10.3892/ol.2018.9772
MLA
Lin, H., Zhang, F., Wang, L., Zeng, D."Use of clinical nomograms for predicting survival outcomes in young women with breast cancer". Oncology Letters 17.2 (2019): 1505-1516.
Chicago
Lin, H., Zhang, F., Wang, L., Zeng, D."Use of clinical nomograms for predicting survival outcomes in young women with breast cancer". Oncology Letters 17, no. 2 (2019): 1505-1516. https://doi.org/10.3892/ol.2018.9772