Dataset Information

Applying the theory of planned behaviour to multiple sclerosis patients' decisions on disease modifying therapy--questionnaire concept and validation.

ABSTRACT:

Background

Patients making important medical decisions need to evaluate complex information in the light of their own beliefs, attitudes and priorities. The process can be considered in terms of the theory of planned behaviour. Decision support technologies aim at helping patients making informed treatment choices. Instruments assessing informed choices need to include risk knowledge, attitude (towards therapy) and actual uptake. However, mechanisms by which decision support achieves its goals are poorly understood.Our aim was therefore to develop and validate an instrument modeling the process of multiple sclerosis (MS) patients' decision making about whether to undergo disease modifying (immuno-)therapies (DMT).

Methods

We constructed a 30-item patient administered questionnaire to access the elaboration of decisions about DMT in MS according to the theory of planned behaviour. MS-patients' belief composites regarding immunotherapy were classified according to the domains "attitude", "subjective social norm" and "control beliefs" and within each domain to either "expectations" or "values" yielding 6 sub-domains. A randomized controlled trial (n?=?192) evaluating an evidence based educational intervention tested the instrument's predictive power regarding intention to use immunotherapy and its sensitivity to the intervention.

Results

The psychometric properties of the questionnaire were satisfactory (mean item difficulty 62, mean SD 0.9, range 0-3). Responses explain up to 68% of the variability in the intention to use DMT was explained by up to 68% in the total sample. Four weeks after an educational intervention, predictive power was higher in the intervention (IG) compared to the control group (CG) (intention estimate: CG 56% / IG 69%, p?=?.179; three domains CG 56% / IG 74%, p?=?.047; six sub-domains CG 64% / IG 78%, p?=?.073). The IG held more critical beliefs towards immunotherapy (p?=?.002) and were less willing to comply with social norm (p?=?.012).

Conclusions

The questionnaire seems to provide a valid way of explaining patients' inherent decision processes and to be sensitive towards varying levels of elaboration. Similar tools based on the theory of planned behaviour could be applied to other decision making scenarios.

SUBMITTER: Kasper J

PROVIDER: S-EPMC3416666 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Applying the theory of planned behaviour to multiple sclerosis patients' decisions on disease modifying therapy--questionnaire concept and validation.

Kasper Jürgen J Köpke Sascha S Fischer Korbinian K Schäffler Nina N Backhus Imke I Solari Alessandra A Heesen Christoph C

BMC medical informatics and decision making 20120702

<h4>Background</h4>Patients making important medical decisions need to evaluate complex information in the light of their own beliefs, attitudes and priorities. The process can be considered in terms of the theory of planned behaviour. Decision support technologies aim at helping patients making informed treatment choices. Instruments assessing informed choices need to include risk knowledge, attitude (towards therapy) and actual uptake. However, mechanisms by which decision support achieves its ...[more]

PMID: 22747904

Similar Datasets

Project description:BackgroundThe purpose of this study was to develop and validate the Policymakers' Information Use Questionnaire (POLIQ) to capture the intention of individuals in decision-making positions, such as health policy-makers, to act on research-based evidence in order to inform theory and the application of behaviour change models to decision-making spheres.MethodsThe development and validation comprised three steps: item generation, qualitative face validation with cognitive debriefing and factorial construct validation. Confirmatory factor analysis was applied to estimate item-domain correlations for five predefined constructs relating to content, beliefs, behaviour, control and intent. Cronbach's alpha coefficient was calculated to assess the overall consistency of questionnaire items with the predefined constructs. Participants in the item generation and face validation were health and policy researchers and two former decision-makers (former assistant deputy ministers) from the Canadian provincial level. Participants in the construct validation were 39 Canadian decision-makers at various positions of municipal, provincial and federal jurisdiction who participated in a series of policy dialogues focused on childhood disability.ResultsCognitive debriefing allowed for small adjustments in language for clarity, including simultaneous validation of the English and French questionnaires. Participants found that the questions were clear and addressed the domains being targeted. Internal consistency of items belonging to the respective questionnaire domains was moderate to high, with estimated Cronbach's alpha values ranging from 0.67 to 0.84. Estimated item-domain correlations indicated moderate to high measurement performance for the domains norm, control and beliefs, whereas weak to moderate correlations resulted for the constructs content and intent. Estimated imprecision of factor loadings (95% confidence interval widths) was considerable for the questionnaire domains content and intent.ConclusionMeasuring decision-makers' behaviour in relation to research evidence use is challenging. We provide initial evidence on face validity and appropriate measurement properties of the POLIQ based on a convenience sample of decision-makers in social and health policy. Larger validation studies and further psychometric property testing will support further utility of the POLIQ.

Project description:BackgroundFinnish clinical guidelines are evolving toward integration of knowledge modules into the electronic health record in the Evidence-Based Medicine electronic Decision Support project. It therefore became important to study which factors affect professionals' intention to use clinical guidelines generally in their decision-making on patient care. A theory-based approach is a possible solution to explore determinants of professionals' behaviour. The study's aim was to produce baseline information for developers and implementers by using the theory of planned behaviour.MethodsA cross-sectional internet-based survey was carried out in Finnish healthcare organisations within three hospital districts. The target population (n = 2,252) included physicians, nurses, and other professionals, of whom 806 participated. Indicators of the intention to use clinical guidelines were observed by using a theory-based questionnaire. The main data analysis was done by means of multiple linear regressions.ResultsThe results indicated that all theory-based variables--the attitude toward the behaviour, the subjective norm, and the perceived behaviour control--were important factors associated with the professionals' intention to use clinical practice guidelines for their area of specialisation in the decisions they would make on the care of patients in the next three months. In addition, both the nurse and the physician factors had positive (p < 0.01) effects on this intention in comparison to other professionals. In the similar models for all professions, the strongest factor for the physicians was the perceived behaviour control, while the key factor for the nurses and the other professionals was the subjective norm. This means that context- and guideline-based factors either facilitate or hinder the intention to use clinical guidelines among physicians and, correspondingly, normative beliefs related to social pressures do so for nurses and other healthcare professionals.ConclusionsThe results confirm suggestions that the theory of planned behaviour is a suitable theoretical basis for implementing clinical guidelines in healthcare practices. Our new finding was that, in general, profession had an effect on intention to use clinical guidelines in patient care. Therefore, the study reaffirms the general contention that different strategies need to be in place when clinical guidelines are targeted at different professional groups.

Project description:BackgroundMedical regulators worldwide have implemented programmes of maintenance of professional competence (MPC) to ensure that doctors, throughout their careers, are up to date and fit to practice. The introduction of MPC required doctors to adopt a range of new behaviours. Despite high enrolment rates on these programmes, it remains uncertain whether doctors engage in the process because they perceive benefits like improvements in their practice and professional development or if they solely meet the requirements to retain medical registration. In this study, we aimed to explore the relationship between doctors' beliefs, intention and behaviour regarding MPC through the lens of the Theory of Planned Behaviour (TPB) to make explicit the factors that drive meaningful engagement with the process.MethodsWe conducted a qualitative study using semi-structured interviews. From a pool of 1258 potential participants, we purposively selected doctors from multiple specialities, age groups, and locations across Ireland. We used thematic analysis, and the TPB informed the analytic coding process.ResultsForty-one doctors participated in the study. The data analysis revealed doctors' intention and behaviour and the factors that shape their engagement with MPC. We found that attitudes and beliefs about the benefits and impact of MPC mediated the nature of doctors' engagement with the process. Some participants perceived positive changes in practice and other gains from participating in MPC, which facilitated committed engagement with the process. Others believed MPC was unfair, unnecessary, and lacking any benefit, which negatively influenced their intention and behaviour, and that was demonstrated by formalistic engagement with the process. Although participants with positive and negative attitudes shared perceptions about barriers to participation, such perceptions did not over-ride strongly positive beliefs about the benefits of MPC. While the requirements of the regulator strongly motivated doctors to participate in MPC, beliefs about patient expectations appear to have had less impact on intention and behaviour.ConclusionsThe findings of this study broaden our understanding of the determinants of doctors' intention and behaviour regarding MPC, which offers a basis for designing targeted interventions. While the barriers to engagement with MPC resonate with previous research findings, our findings challenge critical assumptions about enhancing doctors' engagement with the process. Overall, our results suggest that focused policy initiatives aimed at strengthening the factors that underpin the intention and behaviour related to committed engagement with MPC are warranted.

Dataset Information

Applying the theory of planned behaviour to multiple sclerosis patients' decisions on disease modifying therapy--questionnaire concept and validation.

Background

Methods

Results

Conclusions

Publications

Applying the theory of planned behaviour to multiple sclerosis patients' decisions on disease modifying therapy--questionnaire concept and validation.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets