Paper
22 April 2022 Cox regression analysis on the survival rate of breast cancer patients
Yimin Chen, Weiyu Zeng, Dantong Zhu
Author Affiliations +
Proceedings Volume 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021); 121630S (2022) https://doi.org/10.1117/12.2628105
Event: International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 2021, Nanjing, China
Abstract
Limited studies have been conducted on the survival analysis of breast cancer patients. And no study has been investigated using cancer datasets from the UK and Canadian patients. This study aims to qualify the factors contributing to survival time for female breast cancer patients, including patients' age, tumor size, tumor stage, mutation counts, and positive lymph nodes. The hypothesis is proposed that these factors are all associated with the increasing death rate risk for breast cancer patients. The dataset comes from a study conducted on 2510 female breast cancer patients from the UK and Canada, collected by long-term clinical follow-up. The Cox model is applied to each factor to explore their relationship with the survival of patients. All the results are tested, using Schoenfeld residuals. The coefficients between the explanatory variables and survival time are 0.033863 for age, 0.064274 for lymph nodes, 0.007031 for tumor size, 0.010202 for mutation count, and 0.243451 for tumor stage. The C-index of this model is 0.65653558. Our study suggests that on the premise of having some clinical symptoms, the Cox model can be used to predict the survival time of breast cancer patients. The study has some reference value with its convenient procedure and certain accuracy. According to the outcome of Cox regression, the most pivotal explanatory variables are age, lymph nodes examined positive, tumor size, and tumor stage. As these variables increase, the expectation of the survival time of the patients will decrease.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yimin Chen, Weiyu Zeng, and Dantong Zhu "Cox regression analysis on the survival rate of breast cancer patients", Proc. SPIE 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 121630S (22 April 2022); https://doi.org/10.1117/12.2628105
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KEYWORDS
Breast cancer

Tumors

Cancer

Lymphatic system

Data modeling

Breast

Tissues

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