The relationship between common cognitive screening tests (Standardised Mini‐Mental State Examination and Rowland Universal Dementia Assessment Scale) and the Cognitive Functional Independence Measure

Objectives To assess whether the Cognitive Functional Independence Measure (Cog‐FIM) is correlated with the Standardised Mini‐Mental State Examination (SMMSE) and Rowland Universal Dementia Assessment Scale (RUDAS) and whether there is agreement between the Cog‐FIM and these two tests. Methods Functional Independence Measure assessments were undertaken on 98 subacute patients. Forty‐eight (48) patients were administered the SMMSE, and 50 were administered the RUDAS. Agreement was examined using the Bland‐Altman plot. Results Correlation was observed between the Cog‐FIM and both the SMMSE and the RUDAS. The Bland‐Altman analysis demonstrated agreement between the Cog‐FIM and RUDAS, but not the Cog‐FIM and SMMSE. The limits of agreement between the Cog‐FIM and RUDAS were −13 to 13. Conclusions The Cog‐FIM is correlated with the RUDAS, but the agreement is unclear. Despite agreement of the means, the limits of agreement are large, which may suggest a clinically meaningful difference. The study should be repeated with a larger sample size.