Regression: The Apple Does Not Fall Far From the Tree

被引:49
|
作者
Vetter, Thomas R. [1 ]
Schober, Patrick [2 ]
机构
[1] Univ Texas Austin, Dept Surg & Perioperat Care, Dell Med Sch, Hlth Discovery Bldg,Room 6-812,1701 Trinity St, Austin, TX 78712 USA
[2] Vrije Univ Amsterdam Med Ctr, Dept Anesthesiol, Amsterdam, Netherlands
来源
ANESTHESIA AND ANALGESIA | 2018年 / 127卷 / 01期
关键词
MULTIPLE-REGRESSION; SAMPLE-SIZE; BASE-LINE; ODDS;
D O I
10.1213/ANE.0000000000003424
中图分类号
R614 [麻醉学];
学科分类号
100217 ;
摘要
Researchers and clinicians are frequently interested in either: (1) assessing whether there is a relationship or association between 2 or more variables and quantifying this association; or (2) determining whether 1 or more variables can predict another variable. The strength of such an association is mainly described by the correlation. However, regression analysis and regression models can be used not only to identify whether there is a significant relationship or association between variables but also to generate estimations of such a predictive relationship between variables. This basic statistical tutorial discusses the fundamental concepts and techniques related to the most common types of regression analysis and modeling, including simple linear regression, multiple regression, logistic regression, ordinal regression, and Poisson regression, as well as the common yet often underrecognized phenomenon of regression toward the mean. The various types of regression analysis are powerful statistical techniques, which when appropriately applied, can allow for the valid interpretation of complex, multifactorial data. Regression analysis and models can assess whether there is a relationship or association between 2 or more observed variables and estimate the strength of this association, as well as determine whether 1 or more variables can predict another variable. Regression is thus being applied more commonly in anesthesia, perioperative, critical care, and pain research. However, it is crucial to note that regression can identify plausible risk factors; it does not prove causation (a definitive cause and effect relationship). The results of a regression analysis instead identify independent (predictor) variable(s) associated with the dependent (outcome) variable. As with other statistical methods, applying regression requires that certain assumptions be met, which can be tested with specific diagnostics.
引用
收藏
页码:277 / 283
页数:7
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