Monotone missing data and pattern-mixture models.

Molenberghs, G. and Michiels, B. and Kenward, M. G. and Diggle, Peter J. (1998) Monotone missing data and pattern-mixture models. Statistica Neerlandica, 52 (2). pp. 153-161. ISSN 0039-0402

Abstract

It is shown that the classical taxonomy of missing data models, namely missing completely at random, missing at random and informative missingness, which has been developed almost exclusively within a selection modelling framework, can also be applied to pattern-mixture models. In particular, intuitively appealing identifying restrictions are proposed for a pattern-mixture MAR mechanism.