Dear all!
Below you will find details of the next meeting of the Highland Local
RSS group.
All welcome
Claus
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TITLE: Missing baseline data in randomised trials.
SPEAKER: Ian White (MRC, Cambridge)
DATE: Wednesday, 23rd of November 2005, 4pm (tea and coffee from 3:30 pm)
VENUE: Room 1:147, Polwarth Building, Forester Hill, Aberdeen
(Map of Foresterhill site
http://www.abdn.ac.uk/central/vcampus/foresterhill/index.shtml
Map of Medical School Building
http://www.abdn.ac.uk/central/vcampus/foresterhill/medschool.shtml)
ABSTRACT: I will briefly review the difficult problems of missing
outcome data in randomised trials and missing covariates in
observational studies.
However, methods developed for these situations turn out not to be
appropriate for dealing with missing baseline data in randomised trials.
I will show that excluding participants with missing baselines is a bad
option, but most other options, including simple mean imputation and a
missing indicator method, are adequate.
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Claus-D. Mayer | http://www.bioss.ac.uk
Biomathematics & Statistics Scotland | email: [log in to unmask]
Rowett Research Institute | Telephone: +44 (0) 1224 716652
Aberdeen AB21 9SB, Scotland, UK. | Fax: +44 (0) 1224 715349
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