Jane S Saczynski1,2, Sharon K Inouye2,3,4, Jamey Guess4,5, Richard N Jones2,6, Tamara G Fong2,4,7, Emese Nemeth2,5, Ariel Hodara2,5, Long Ngo4,5, Edward R Marcantonio2,4,5. 1. Division of Geriatric Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts. 2. Aging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, Massachusetts. 3. Division of Gerontology, Beth Israel Deaconess Medical Center, Boston, Massachusetts. 4. Harvard Medical School, Boston, Massachusetts. 5. Division of General Medicine and Primary Care, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts. 6. Department of Psychiatry and Human Behavior, Brown University Medical School, Providence, Rhode Island. 7. Department of Neurology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
Abstract
OBJECTIVES: To establish Montreal Cognitive Assessment (MoCA) scores that correspond to well-established cut-points on the Mini-Mental State Examination (MMSE). DESIGN: Cross-sectional observational study. SETTING: General medical service of a large teaching hospital. PARTICIPANTS: Individuals aged 75 and older (N = 199; mean age 84, 63% female). MEASUREMENTS: The MoCA (range 0-30) and the MMSE (range 0-30) were administered within 2 hours of each other. The Abbreviated MoCA (A-MoCA; range 0-22) was calculated from the full MoCA. Scores from the three tests were analyzed using equipercentile equating, a statistical method for determining comparable scores on different tests of a similar construct by estimating percentile equivalents. RESULTS: MoCA scores were lower (mean 19.3 ± 5.8) than MMSE scored (mean 24.1 ± 6.6). Traditional MMSE cut-points of 27 for mild cognitive impairment and 23 for dementia corresponded to MoCA scores of 23 and 17, respectively. CONCLUSION: Scores on the full and abbreviated versions of the MoCA can be linked directly to the MMSE. The MoCA may be more sensitive to changes in cognitive performance at higher levels of functioning.
OBJECTIVES: To establish Montreal Cognitive Assessment (MoCA) scores that correspond to well-established cut-points on the Mini-Mental State Examination (MMSE). DESIGN: Cross-sectional observational study. SETTING: General medical service of a large teaching hospital. PARTICIPANTS: Individuals aged 75 and older (N = 199; mean age 84, 63% female). MEASUREMENTS: The MoCA (range 0-30) and the MMSE (range 0-30) were administered within 2 hours of each other. The Abbreviated MoCA (A-MoCA; range 0-22) was calculated from the full MoCA. Scores from the three tests were analyzed using equipercentile equating, a statistical method for determining comparable scores on different tests of a similar construct by estimating percentile equivalents. RESULTS:MoCA scores were lower (mean 19.3 ± 5.8) than MMSE scored (mean 24.1 ± 6.6). Traditional MMSE cut-points of 27 for mild cognitive impairment and 23 for dementia corresponded to MoCA scores of 23 and 17, respectively. CONCLUSION: Scores on the full and abbreviated versions of the MoCA can be linked directly to the MMSE. The MoCA may be more sensitive to changes in cognitive performance at higher levels of functioning.
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