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Roalf et al. describe a short form of the Montreal Cognitive
Assessment (s-MOCA) comprising 8 items (score range 0-16) from the
Data from a historical cohort administered the MoCA (n = 150)1 were
examined to extract s-MoCA scores. There was high correlation between s-
MoCA scores and MoCA and MMSE scores (0.94, 0.80 respectively).
s-MoCA scores differed significantly (null hypothesis r...
s-MoCA scores differed significantly (null hypothesis rejected)
between dementia and mild cognitive impairment (MCI), and between MCI (t =
2.6, p = 0.01) and subjective memory complaint (SMC; t = 6.6, p <
Using the specified s-MoCA cutoff of <12/16, the test was very
sensitive (0.94) but not specific (0.25) for diagnosis of dementia versus
MCI, with a better balance for diagnosis of MCI versus SMC (sensitivity
0.75, specificity 0.66).
Effect sizes (Cohen's d) were medium for diagnosis of dementia versus
MCI (0.65) but large (1.19) for diagnosis of MCI versus SMC. All outcome
measures were similar to those for the MoCA.
This retrospective study suggests s-MoCA has utility as a cognitive
screening instrument for diagnosis of dementia and MCI in a dedicated
cognitive disorders clinic. Validation of s-MoCA in a prospective cohort
from this clinic (n > 200) is now being examined.
1. Larner AJ. Screening utility of the Montreal Cognitive Assessment
(MoCA): in place of - or as well as - the MMSE? Int Psychogeriatr