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Psychometric properties of a German version of the "Satisfaction with Information about Medicines Scale" (SIMS-D)
Cornelia Mahler1, Susanne Jank, Katja Hermann
1Department of General Practice and Health Services Research, University Hospital Heidelberg, Vossstrasse 2, Heidelberg, Germany. cornelia.mahler@med.uni-heidelberg.de
Objective:
The aim of this study was to translate the Satisfaction with Information about Medicines Scale (SIMS) into German and test its psychometric properties in a German primary care setting. The SIMS was developed to assess the extent to which patients feel they have received enough information about their medicines.
Methods:
Three hundred seventy chronically ill patients were included in the study. The SIMS was translated to SIMS-D (German version) and evaluated in terms of acceptability, internal consistency, test-retest reliability, discriminant, and criterion-related validity.
Results:
The SIMS-D showed good internal consistency (Cronbach's alpha 0.92) and adequate test-retest reliability (Pearson's r > 0.7). Relationships to external criteria regarding medication management were acceptable (Spearman's rho > 0.4). The SIMS-D was reasonably well accepted (return rate of 71%); however, older people produced more missing values when filling in the questionnaire.
Conclusions:
Preliminary evidence was given that the SIMS-D is a suitable instrument for measuring patient satisfaction with information about medicines in German primary care settings.
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