Citation

Song J, Belin TR. Stat. Med. 2004; 23(18): 2827-2843.

Copyright

(Copyright © 2004, John Wiley and Sons)

DOI

10.1002/sim.1867

PMID

15344189

Abstract

It is common in applied research to have large numbers of variables measured on a modest number of cases. Even with low rates of missingness on individual variables, such data sets can have a large number of incomplete cases. Here we present a new method for handling missing continuously scaled items in multivariate data, based on extracting common factors to reduce the number of covariance parameters to be estimated in a multivariate normal model. The technique is compared in several simulation settings to available-case analysis and to a multivariate normal model with a ridge prior. The method is also illustrated on a study with over 100 variables evaluating an emergency room intervention for adolescents who attempted suicide.

Language: en

Keywords

Humans; Models, Statistical; Multivariate Analysis; Suicide, Attempted; United States