title: Missing covariate data in clinical research: when and when not to use the missing-indicator method for analysis.
authors.affiliation: Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands. r.h.h.groenwold@umcutrecht.nl
authors.forename: Rolf H H
authors.initials: RH
authors.lastname: Groenwold
authors.forename: Ian R
authors.initials: IR
authors.lastname: White
authors.forename: A Rogier T
authors.initials: AR
authors.lastname: Donders
authors.forename: James R
authors.initials: JR
authors.lastname: Carpenter
authors.forename: Douglas G
authors.initials: DG
authors.lastname: Altman
authors.forename: Karel G M
authors.initials: KG
authors.lastname: Moons
mesh_terms: D015982:Bias; D035843:Biomedical Research / Q000379:methods*; D006801:Humans; D012107:Research Design; D013223:Statistics as Topic