在默克尔细胞癌患者的条件生存分析和长期生存的动态预测
Jin Zhang1,2, Yang Xiang1, Jiqiu Chen1
1The First Affiliated Hospital of the Naval Medical University, Shanghai, China.
Frontiers in medicine
|February 23, 2024
概括
默克尔细胞癌 (MCC) 患者的条件生存率 (CS) 随着时间的推移而增加. 一种新的诺莫格拉姆模型动态估计了预后,有助于对这种罕见的皮肤癌的随访和治疗计划.
科学领域:
- 在瘤学瘤学.
- 皮肤病学 皮肤病学
- 生物统计学 生物统计学
背景情况:
- 默克尔细胞癌 (MCC) 是一种罕见的,具有高死亡率的侵袭性神经内分泌皮肤癌.
- 准确的预后评估和生存率估计对于患者管理至关重要.
- 现有的生存指标可能无法完全捕捉随时间推移的预后的动态性质.
研究的目的:
- 为了估计默克尔细胞癌 (MCC) 患者的条件生存率 (CS).
- 开发和验证一种用于预测MCC患者的CS的新型诺莫格拉姆模型.
- 提供一个动态的工具来评估个人患者的预后随着时间的推移.
主要方法:
- 使用监测,流行病学和最终结果 (SEER) 数据库来获取患者数据.
- 用于预测选的雇员最小绝对缩小和选择操作员 (LASSO) 回归.
- 应用多变量考克斯回归分析来构建和验证基于CS的名图.
主要成果:
- 对3843名MCC患者的分析显示,随着时间的推移,7年CS率的逐渐,非线性增加.
- 对于名图所确定的关键预测因素包括患者年龄,性别,AJCC阶段,手术和放射治疗.
- 开发的基于CS的名图表在验证中表现出良好的预测性能.
结论:
- 对于MCC患者的条件生存是动态的,随着诊断后的生存时间的增加,条件生存率会提高.
- 基于CS的新型名录图为动态生存估计提供了有价值的工具.
- 这个模型可以为MCC提供后续指导方针,生存计划和临床治疗决策.
相关概念视频
Cancer Survival Analysis
346
Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
346
Kaplan-Meier Approach
138
The Kaplan-Meier estimator is a non-parametric method used to estimate the survival function from time-to-event data. In medical research, it is frequently employed to measure the proportion of patients surviving for a certain period after treatment. This estimator is fundamental in analyzing time-to-event data, making it indispensable in clinical trials, epidemiological studies, and reliability engineering. By estimating survival probabilities, researchers can evaluate treatment effectiveness,...
138
Comparing the Survival Analysis of Two or More Groups
186
Survival analysis is a cornerstone of medical research, used to evaluate the time until an event of interest occurs, such as death, disease recurrence, or recovery. Unlike standard statistical methods, survival analysis is particularly adept at handling censored data—instances where the event has not occurred for some participants by the end of the study or remains unobserved. To address these unique challenges, specialized techniques like the Kaplan-Meier estimator, log-rank test, and...
186
Assumptions of Survival Analysis
127
Survival models analyze the time until one or more events occur, such as death in biological organisms or failure in mechanical systems. These models are widely used across fields like medicine, biology, engineering, and public health to study time-to-event phenomena. To ensure accurate results, survival analysis relies on key assumptions and careful study design.
127
Introduction To Survival Analysis
236
Survival analysis is a statistical method used to study time-to-event data, where the "event" might represent outcomes like death, disease relapse, system failure, or recovery. A unique feature of survival data is censoring, which occurs when the event of interest has not been observed for some individuals during the study period. This requires specialized techniques to handle incomplete data effectively.
The primary goal of survival analysis is to estimate survival time—the time...
The primary goal of survival analysis is to estimate survival time—the time...
236
Actuarial Approach
78
The actuarial approach, a statistical method originally developed for life insurance risk assessment, is widely used to calculate survival rates in clinical and population studies. This method accounts for participants lost to follow-up or those who die from causes unrelated to the study, ensuring a more accurate representation of survival probabilities.
Consider the example of a high-risk surgical procedure with significant early-stage mortality. A two-year clinical study is conducted,...
Consider the example of a high-risk surgical procedure with significant early-stage mortality. A two-year clinical study is conducted,...
78


