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Updated: Sep 10, 2025

An R-Based Landscape Validation of a Competing Risk Model
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An R-Based Landscape Validation of a Competing Risk Model

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死亡リスクの階層化のための修正された機能的連続スケールの検証:ルガオの縦断的老化研究

Mengzhen Sun1, Yan Zhang2, Jianghong Guo3

  • 1Human Phenome Institute and MOE Key Laboratory of Contemporary Anthropology, School of Life Science, Fudan University, Shanghai, China; Fudan University People's Hospital of Rugao Joint Research Institute of Longevity and Aging, Rugao, Jiangsu Province, China.

Geriatric nursing (New York, N.Y.)
|August 21, 2025
PubMed
まとめ

機能的連続体 (FC) は,中国人の高齢者の死亡リスクを効果的に分層化します. 機能的独立性の低下は,5年後の死亡リスクの増加と投与量効果の関係を示しています.

キーワード:
中国 人口機能的連続体死亡リスク高齢者

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Relative Risk01:12

Relative Risk

Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
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Assumptions of Survival Analysis01:15

Assumptions of Survival Analysis

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Cancer Survival Analysis01:21

Cancer Survival Analysis

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...
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Actuarial Approach

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.
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The Mantel-Cox Log-Rank Test

The Mantel-Cox log-rank test is a widely used statistical method for comparing the survival distributions of two groups. It tests whether a statistically significant difference exists in survival times between the groups without assuming a specific distribution for the survival data, making it a non-parametric test. This flexibility makes the log-rank test particularly valuable in medical research and other fields where the timing of an event, such as death or disease recurrence, is of...
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Life Tables

A life table is a statistical tool that summarizes the mortality and survival patterns of a population, providing detailed insights into the likelihood of survival or death across different age intervals within a cohort. By organizing data on survival probabilities and mortality rates, life tables offer a clear snapshot of population dynamics over time. They are extensively used in demography, public health, actuarial science, and ecology to analyze life expectancy, design health interventions,...
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