Concise evaluation of decision aids.
until further notice
SourcePatient Education and Counseling, 74, 1, (2009), pp. 104-109
Article / Letter to editor
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Epidemiology, Biostatistics & HTA
Centre for Quality of Care Research
Patient Education and Counseling
SubjectNCEBP 2: Evaluation of complex medical interventions; ONCOL 4: Quality of Care
OBJECTIVE: Decision aids purport to help patients make treatment related choices. Several instruments exist to evaluate decision aids. Our aim is to compare the responsiveness of several instruments. METHODS: Two different decision aids were randomized in patients at high risk for breast and ovarian cancer. Treatment choices were between prophylactic surgery and screening. Effect sizes were calculated to compare the responsiveness of the measures. RESULTS: One decision aid was randomized in 390 women, the other in 91 ensuing mutation carriers. Three factors were identified related to Information, Well-being and Decision Making. Within each factor, single item measures were as responsive as multi-item measures. CONCLUSION: Four single items, 'the amount of information received for decision making,' 'strength of preference,' 'I weighed the pros and cons,' and 'General Health,' were adequately responsive to the decision aids. PRACTICE IMPLICATIONS: These items might be considered for inclusion in questionnaires to evaluate decision aids.
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