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Establishing anchor-based minimally important differences (MID) with the EORTC quality-of-life measures: a meta-analysis protocol.
Musoro ZJ, Hamel JF, Ediebah DE, Cocks K, King MT, Groenvold M, Sprangers MAG, Brandberg Y, Velikova G, Maringwa J, Flechtner HH, Bottomley A, Coens C; EORTC Quality of Life Group. Musoro ZJ, et al. Among authors: groenvold m. BMJ Open. 2018 Jan 10;8(1):e019117. doi: 10.1136/bmjopen-2017-019117. BMJ Open. 2018. PMID: 29326191 Free PMC article. Clinical Trial.
Use of differential item functioning analysis to assess the equivalence of translations of a questionnaire.
Petersen MA, Groenvold M, Bjorner JB, Aaronson N, Conroy T, Cull A, Fayers P, Hjermstad M, Sprangers M, Sullivan M; European Organisation for Research and Treatment of Cancer Quality of Life Group. Petersen MA, et al. Among authors: groenvold m. Qual Life Res. 2003 Jun;12(4):373-85. doi: 10.1023/a:1023488915557. Qual Life Res. 2003. PMID: 12797710
Item response theory was used to shorten EORTC QLQ-C30 scales for use in palliative care.
Petersen MA, Groenvold M, Aaronson N, Blazeby J, Brandberg Y, de Graeff A, Fayers P, Hammerlid E, Sprangers M, Velikova G, Bjorner JB; European Organisation for Research and Treatment of Cancer Quality of Life Group. Petersen MA, et al. Among authors: groenvold m. J Clin Epidemiol. 2006 Jan;59(1):36-44. doi: 10.1016/j.jclinepi.2005.04.010. Epub 2005 Sep 12. J Clin Epidemiol. 2006. PMID: 16360559
The relationship between overall quality of life and its subdimensions was influenced by culture: analysis of an international database.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group; Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: groenvold m. J Clin Epidemiol. 2008 Aug;61(8):788-95. doi: 10.1016/j.jclinepi.2007.08.015. Epub 2008 Mar 21. J Clin Epidemiol. 2008. PMID: 18359194
A simulation study provided sample size guidance for differential item functioning (DIF) studies using short scales.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Gundy C, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group; Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: groenvold m. J Clin Epidemiol. 2009 Mar;62(3):288-95. doi: 10.1016/j.jclinepi.2008.06.003. Epub 2008 Sep 6. J Clin Epidemiol. 2009. PMID: 18774693
238 results