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Health and Quality of Life Outcomes
Published in: Health and Quality of Life Outcomes 1/2012

Open Access 01-12-2012 | Research

Development and validation of the self-management profile for type 2 diabetes (SMP-T2D)

Authors: Mark Peyrot, Donald M Bushnell, Jennie H Best, Mona L Martin, Ann Cameron, Donald L Patrick

Published in: Health and Quality of Life Outcomes | Issue 1/2012

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Abstract

Background

This study evaluated the measurement properties of a newly developed instrument – the Self-Management Profile for Type 2 Diabetes (SMP-T2D).

Methods

The 18-item SMP-T2D assesses 12 constructs: level and perceived ease of performance in five self-care domains (blood glucose monitoring, medication-taking, healthy eating, being physically active, and coping), and two global constructs (ease of weight management, confidence with ability to manage diabetes). Validation analyses were based on two studies involving 240 patients with T2D, Study 1 (Clinicaltrials.gov #NCT00637273) with SMP-T2D administration supplemented by SMP-T2D retest one week later, and Study 2 (Clinical trials.gov #NCT00877890) with SMP-T2D administration supplemented by 24-week SMP-T2D follow-up after medication change. Validation included clinical indicators and measures of patient reported quality of life, psychological well-being and treatment outcomes.

Results

All multi-item SMP-T2D measures showed acceptable internal consistency (alphas = 0.71 to 0.87); ten measures had test-retest reliability >0.75. Correlations among SMP-T2D measures and between SMP-T2D measures and validation measures, which were as hypothesized, provided evidence of convergent and discriminant validity. Scores for six SMP-T2D measures improved significantly during Study 2. Multiple regression analysis showed independent associations between change in SMP-T2D measures and change in trial outcomes from baseline to end-of-study.

Conclusions

Two studies provide preliminary evidence regarding the reliability, validity and responsiveness of the SMP-T2D. Further research on the utility of the instrument is needed.
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Metadata
Title
Development and validation of the self-management profile for type 2 diabetes (SMP-T2D)
Authors
Mark Peyrot
Donald M Bushnell
Jennie H Best
Mona L Martin
Ann Cameron
Donald L Patrick
Publication date
01-12-2012
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2012
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/1477-7525-10-125

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