Blar i Institutt for klinisk og molekylær medisin på forfatter "Campbell, MK"
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Simple imputation methods were inadequate for missing not at random (MNAR) quality of life data
Fielding, S; Fayers, Peter; McDonald, A; McPherson, G; Campbell, MK (Journal article; Peer reviewed, 2008)Objective: QoL data were routinely collected in a randomised controlled trial (RCT), which employed a reminder system, retrieving about 50% of data originally missing. The objective was to use this unique feature to ...