医学研究中常见统计分析方法的应用

Selection and application of statistical methods in medical research

摘要: 统计学在医学研究中起着重要的作用，选择合适的统计学方法对于医学研究能否得出可靠和有价值的结论至关重要。本文简要介绍常用的医学数据统计分析方法，包括描述性分析、参数检验、非参数检验、相关分析、回归分析和生存分析。重点讨论多重线性回归、logistic回归、Cox比例风险回归的假设以及针对不同的研究目标和数据类型来选择合适的统计方法来分析和解释医学数据。

Abstract: Statistics plays an important role in medical research， and the selection of appropriate statistical methods is crucial for drawing reliable and valuable conclusions. This paper provides a brief introduction to commonly used statistical analysis methods for medical data， covering descriptive analysis， parametric test， nonparametric test， correlation analysis， regression analysis， and analysis of survival data. It focuses on discussing the assumptions of multiple linear regression， logistic regression and Cox proportional risk regression， as well as how to choose the appropriate statistical methods for analyzing and interpreting medical data based on different research objectives and data types.