Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2021 Feb 1;132(2):365-366.
doi: 10.1213/ANE.0000000000005247.

Logistic Regression in Medical Research

Patrick Schober  1 , Thomas R Vetter  2
Affiliations
Comment

Logistic Regression in Medical Research

Patrick Schober et al. Anesth Analg. .
No abstract available

PubMed Disclaimer

Figures

Figure.
Figure.
Relationship between a continuous independent variable X and a binary outcome that can take values 0 (eg, “no”) or 1 (eg, “yes”). As shown, the probability that the value of the outcome is 1 seems to increase with increasing values of X. A, Using a straight line to model the relationship of the independent variable with the probability provides a poor fit; results in estimated probabilities <0 and >1; and grossly violates the assumptions of linear regression. Logistic regression models a linear relationship of the independent variable with the natural logarithm (ln) of the odds of the outcome variable. B, This translates to a sigmoid relationship between the independent variable and the probability of the outcome being 1, with predicted probabilities appropriately constrained between 0 and 1.
See this image and copyright information in PMC

Comment on

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Park RS, Rattana-Arpa S, Peyton JM, Huang J, Kordun A, Cravero JP, et al. Risk of hypoxemia by induction technique among infants and neonates undergoing pyloromyotomy. Anesth Analg. 2021;132:367–373. - PubMed
    1. Vetter TR, Schober P. Regression: the apple does not fall far from the tree. Anesth Analg. 2018;127:277–283. - PubMed
    1. Schober P, Vetter TR. Linear regression in medical research. Anesth Analg. 2021;132:108 109. - PMC - PubMed
    1. Schober P, Vetter TR. Confounding in observational research. Anesth Analg. 2020;130:635. - PubMed
    1. Schober P, Vetter TR. Repeated measures designs and analysis of longitudinal data: if at first you do not succeed-try, try again. Anesth Analg. 2018;127:569–575. - PMC - PubMed