Direct and flexible marginal inference for semicontinuous data.

Journal Article (Journal Article)

The marginalized two-part (MTP) model for semicontinuous data proposed by Smith et al. provides direct inference for the effect of covariates on the marginal mean of positively continuous data with zeros. This brief note addresses mischaracterizations of the MTP model by Gebregziabher et al. Additionally, the MTP model is extended to incorporate the three-parameter generalized gamma distribution, which takes many well-known distributions as special cases, including the Weibull, gamma, inverse gamma, and log-normal distributions.

Full Text

Duke Authors

Cited Authors

  • Smith, VA; Preisser, JS

Published Date

  • December 2017

Published In

Volume / Issue

  • 26 / 6

Start / End Page

  • 2962 - 2965

PubMed ID

  • 26329752

Electronic International Standard Serial Number (EISSN)

  • 1477-0334

Digital Object Identifier (DOI)

  • 10.1177/0962280215602290


  • eng

Conference Location

  • England