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Combining olfaction and cognition measures to screen for mild cognitive impairment
Mary Ann F Kirkpatrick1, Wendell Combest, Marian Newton
1Shenandoah University, Winchester, VA, USA. mkirkpat@su.edu
Purpose:
This exploratory study examined the relationship between performance on the University of Pennsylvania Smell Identification Test (UPSIT) and the Addenbrooke's Cognitive Examination (ACE) to identify a possible association between olfaction and mild cognitive impairment(MCI).
Design And Methods:
54 community-dwelling older (ages 49-91) volunteers were given the UPSIT and ACE.
Results:
The ACE identified 7 subjects (13%) who had probable MCI. UPSIT total scores were significantly related to ACE total scores (r = 0.37, p = 0.005). Four specific odorants (mint, lime, chocolate, and cheddar cheese) from the UPSIT identified 4 of the 7 (57.1%) probable MCI subjects. The prevalence rate of MCI in subjects over 65 was 19.4%.
Implications:
Selective odorants in UPSIT used with ACE show promise as a non-invasive method of detecting MCI in community dwelling elders. Detection of MCI could facilitate earlier interventions and treatment of dementia.
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