Term: Zero-Inflated Model

Glossary Definition

Last Updated: 2012-04-20

Definition:

A type of regression model used to analyze a dependent variable that has excess zero values. Zero-Inflated models assume that the data are a mixture of two separate data generation processes: one generates only zeros and the other process generates non-zero counts.

Related terms 

• Zero-Inflated Negative Binomial Distribution

References 

• Garland A, Fransoo R, Olafson K, Ramsey C, Yogendran M, Chateau D, McGowan K. The Epidemiology and Outcomes of Critical Illness in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy, 2012. [Report] [Summary] (View)