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Associations and Correlations

You're reading from   Associations and Correlations Unearth the powerful insights buried in your data

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Product type Paperback
Published in Jun 2019
Publisher
ISBN-13 9781838980412
Length 134 pages
Edition 1st Edition
Concepts
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Author (1):
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Lee Baker Lee Baker
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Lee Baker
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Survival Analysis

Survival analysis is a method for analyzing the time to an event rather than the event itself and is used extensively in medical studies to assess survival rates or disease recurrence rates. The method is also gaining increasing usage and acceptance in many other fields, such as in engineering, to assess the failure rates of mechanical systems or parts, and in many other sectors, such as economics, sociology, and sales forecasts.

If you have a pair of categorical variables, Gender [male; female] and Survival [yes; no], you can simply run Fisher's Exact Test to find out whether men are more likely than women to die (as a result of some disease or other).

Alternatively, if you have a third variable, 'Time To Event,' then you can see how the event in question unfolds over time rather than just a final snapshot at the end of the study, and this is the essence of survival analysis.

A dataset for survival analysis typically looks like Figure 4.18.

Figure...
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