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Value Health ; 22(6): 704-711, 2019 06.
Article in English | MEDLINE | ID: mdl-31198188

ABSTRACT

BACKGROUND: Adequately preparing patients for medical interventions is an important component of quality healthcare. Nevertheless, few instruments for assessing patients' preparation exist. OBJECTIVES: To develop a psychometrically rigorous instrument to assess patients' perceptions of the quality of preparation. METHODS: An instrument to measure patients' preparation for medical interventions (MiPrep) was developed and tested with patients undergoing medical imaging, radiotherapy, or surgery. Patients were recruited and asked to complete 2 surveys. Survey A assessed patient and intervention characteristics. Survey B (postintervention) contained MiPrep to assess validity (face, content, and construct) and reliability (internal consistency and test-retest). RESULTS: A total of 869 (85%) patients consented to participate and 551 (63%) returned the postintervention survey. Face and content validity were demonstrated. Exploratory factor analysis identified 2 survey modules: receipt and adequacy of information (2 domains) and overall appraisal of patient-centered care (1 domain). Reliability was evidenced by adequate internal consistency (Cronbach α 0.81-0.89) and item-total correlations higher than 0.20. Nevertheless, individual item test-retest reliability requires further confirmation. The final instrument contained 27 items. CONCLUSIONS: The MiPrep instrument has evidence of being a valid and reliable instrument of preparation for medical interventions. Healthcare providers can use the instrument as a quality assurance tool to identify areas for improvement and areas of excellence in patients' preparation. Future studies should verify these findings in other populations and examine the divergent and predictive validity of the instrument.


Subject(s)
Patients/psychology , Perception , Psychometrics/standards , Surveys and Questionnaires/standards , Adult , Aged , Aged, 80 and over , Diagnostic Imaging/methods , Diagnostic Imaging/psychology , Female , Humans , Male , Middle Aged , Psychometrics/instrumentation , Psychometrics/methods , Reproducibility of Results , Self Efficacy , Surgical Procedures, Operative/methods , Surgical Procedures, Operative/psychology
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