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Statistical Models for Prognostication
Author Bio
Introduction
Predictions: Statistical Models
Insight: Statistical Models
Ingredients: Statistical Models
Theoretical Aspects
Central Concepts
Regression Models
Currently selected section: Problems: Regression
Practical Advice
Example 1
Example 2
Chapter 8: Statistical Models for Prognostication: Problems with Regression Models
        

You Answered:

Selection A250 patients, 25 events

INCORRECT

The number of events predominantly determines whether a sample size is small for logistic regression analysis. The correct answer is (d) 2000 patients, 20 events. When 20 patients have an event in a study of 2000 patients (1% event rate), these 20 patients determine the effective sample size for predictive modeling.

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