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ABSTRACT: Objective
To validate the Danish Multimorbidity Treatment Burden Questionnaire (MTBQ) and obtain a population-based evaluation of treatment burden.Design
Mixed-methods.Setting
Danish population-based survey.Participants
Translation by professional translators and an expert group. The scale was tested by 13 407 participants (aged ≥25 years) in treatment.Measures
The 10-item MTBQ was translated into Danish using forward-backward translation and used in a large population health survey. A global MTBQ score was calculated and factor analysis and Cronbach's alpha assessed dimensional structure and internal consistency reliability, respectively. Spearman's rank correlations between global MTBQ scores and scores of self-rated health, health-related quality of life and the number of long-term conditions, respectively, assessed construct validity. MTBQ scores were grouped into four categories (no, low, medium, high burden) to assess interpretability and population-based evaluation of treatment burden.Results
The scale showed high internal consistency (α=0.87), positive skewness and large floor effects. Factor analysis supported a one-dimensional structure of the scale with a three-dimensional structure as a less parsimonious alternative. The MTBQ score was negatively associated with self-rated health (rS-0.45, p<0.0001) and health-related quality of life (rS-0.46/-0.51, p<0.0001), and positively associated with the number of long-term conditions (rS 0.26, p<0.0001) and perceived stress (rS 0.44, p<0.0001). Higher treatment burden was associated with young age, male sex, high educational level, unemployment, being permanently out of work, not living with a spouse/cohabitant, living with child(ren) and long-term conditions (eg, heart attack, stroke, diabetes and mental illness).Conclusion
The Danish MTBQ is a valid measure of treatment burden with good construct validity and high internal reliability. This is the first study to explore treatment burden at a population level and provides important evidence to policy makers and clinicians about sociodemographic groups at risk of higher treatment burden.
SUBMITTER: Pedersen MH
PROVIDER: S-EPMC8724706 | biostudies-literature | 2022 Jan
REPOSITORIES: biostudies-literature
Pedersen Marie Hauge MH Duncan Polly P Lasgaard Mathias M Friis Karina K Salisbury Chris C Breinholt Larsen Finn F
BMJ open 20220103 1
<h4>Objective</h4>To validate the Danish Multimorbidity Treatment Burden Questionnaire (MTBQ) and obtain a population-based evaluation of treatment burden.<h4>Design</h4>Mixed-methods.<h4>Setting</h4>Danish population-based survey.<h4>Participants</h4>Translation by professional translators and an expert group. The scale was tested by 13 407 participants (aged ≥25 years) in treatment.<h4>Measures</h4>The 10-item MTBQ was translated into Danish using forward-backward translation and used in a lar ...[more]