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Quality of Life Research
Gepubliceerd in: Quality of Life Research 10/2011

01-12-2011

Response shift in patients with multiple sclerosis: an application of three statistical techniques

Auteurs: Carolyn E. Schwartz, Mirjam A. G. Sprangers, Frans J. Oort, Sara Ahmed, Rita Bode, Yuelin Li, Timothy Vollmer

Gepubliceerd in: Quality of Life Research | Uitgave 10/2011

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Abstract

Objective

With the evolution of theory and methods for detecting recalibration, reprioritization, and reconceptualization response shifts, the time has come to evaluate and compare the current statistical detection techniques. This manuscript presents an overview of a cross-method validation done on the same patient sample.

Methods

Three statistical techniques were used: Structural Equation Modeling, Latent Trajectory Analysis, and Recursive Partitioning and Regression Tree modeling. The study sample (n = 3,008) was drawn from the North American Research Committee on Multiple Sclerosis (NARCOMS) Registry to represent patients soon after diagnosis, classified as having either a self-reported relapsing, progressive, or stable disease trajectory. Patient-reported outcomes included the disease-specific Performance Scales and the Patient-Derived Disease Steps, and the generic SF-12v2 measure.

Results

Small response shift effect sizes were detected by all of the methods. Recalibration response shift was detected by Structural Equation Modeling, Recursive Partitioning Regression Tree demonstrated patterns consistent with all three types of response shift, and Latent Trajectory Analysis, although unable to distinguish types of response shift, did detect response shift in less than 1% of the sample.

Conclusion

The methods and their findings were discussed for operationalization, interpretability, assumptions, ability to use all data points from the study sample, limitations, and strengths. Directions for future research are discussed.
vorige artikel Using latent trajectory analysis of residuals to detect response shift in general health among patients with multiple sclerosis article
volgende artikel What do people include when they self-rate their health? Differential associations according to health status in community-dwelling older adults
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Metagegevens
Titel
Response shift in patients with multiple sclerosis: an application of three statistical techniques
Auteurs
Carolyn E. Schwartz
Mirjam A. G. Sprangers
Frans J. Oort
Sara Ahmed
Rita Bode
Yuelin Li
Timothy Vollmer
Publicatiedatum
01-12-2011
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 10/2011
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-011-0056-8

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