Premium
Development and validation of a questionnaire evaluating patient anxiety during Magnetic Resonance Imaging: the Magnetic Resonance Imaging‐Anxiety Questionnaire (MRI‐AQ)
Author(s) -
Ahlander BrittMarie,
Årestedt Kristofer,
Engvall Jan,
Maret Eva,
Ericsson Elisabeth
Publication year - 2016
Publication title -
journal of advanced nursing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.948
H-Index - 155
eISSN - 1365-2648
pISSN - 0309-2402
DOI - 10.1111/jan.12917
Subject(s) - magnetic resonance imaging , anxiety , cronbach's alpha , medicine , psychology , clinical psychology , psychometrics , psychiatry , radiology
Aim To develop and validate a new instrument measuring patient anxiety during Magnetic Resonance Imaging examinations, Magnetic Resonance Imaging‐ Anxiety Questionnaire. Background Questionnaires measuring patients’ anxiety during Magnetic Resonance Imaging examinations have been the same as used in a wide range of conditions. To learn about patients’ experience during examination and to evaluate interventions, a specific questionnaire measuring patient anxiety during Magnetic Resonance Imaging is needed. Design Psychometric cross‐sectional study with test‐retest design. Methods A new questionnaire, Magnetic Resonance Imaging‐Anxiety Questionnaire, was designed from patient expressions of anxiety in Magnetic Resonance Imaging‐scanners. The sample was recruited between October 2012–October 2014. Factor structure was evaluated with exploratory factor analysis and internal consistency with Cronbach's alpha. Criterion‐related validity, known‐group validity and test‐retest was calculated. Results Patients referred for Magnetic Resonance Imaging of either the spine or the heart, were invited to participate. The development and validation of Magnetic Resonance Imaging‐Anxiety Questionnaire resulted in 15 items consisting of two factors. Cronbach's alpha was found to be high. Magnetic Resonance Imaging‐Anxiety Questionnaire correlated higher with instruments measuring anxiety than with depression scales. Known‐group validity demonstrated a higher level of anxiety for patients undergoing Magnetic Resonance Imaging scan of the heart than for those examining the spine. Test‐retest reliability demonstrated acceptable level for the scale. Conclusion Magnetic Resonance Imaging‐Anxiety Questionnaire bridges a gap among existing questionnaires, making it a simple and useful tool for measuring patient anxiety during Magnetic Resonance Imaging examinations.