Conversion between the Brief assessment of Impaired Cognition, Brief Assessment of Impaired Cognition Questionnaire, and Mini-Mental State Examination in a mixed clinical sample
TL;DR
The study presents bi-directional crosswalks between BASIC, BASIC-Q and MMSE enabling comparison and synthesis of test results, facilitating communication between clinicians, and potentially helping to inform clinical and policy decision making.
Abstract
The Brief Assessment of Impaired Cognition (BASIC), and the Brief Assessment of Impaired Cognition Questionnaire (BASIC-Q) are new case-finding tools for cognitive impairment and dementia which are increasingly being used in clinical settings as alternatives to the Mini-Mental State Examination (MMSE). The objective of this study was to develop bi-directional crosswalk tables for conversion between the three instruments for patients 60 years and older. Patients from memory clinics and general practice ≥ 60 years of age who completed assessment with BASIC, BASIC-Q, and MMSE were included. The equipercentile equating method with log-linear pre-smoothing of data was applied to create conversion tables between instruments. A total of 394 patients completed assessment with BASIC and MMSE, 355 of which also completed BASIC-Q. We present bi-directional conversion tables between the three instruments. The study presents bi-directional crosswalks between BASIC, BASIC-Q and MMSE enabling comparison and synthesis of test results, facilitating communication between clinicians, and potentially helping to inform clinical and policy decision making.