Journal
JOURNAL OF CLINICAL AND EXPERIMENTAL NEUROPSYCHOLOGY
Volume 35, Issue 7, Pages 669-676Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/13803395.2013.809701
Keywords
Olfaction; Odor identification; Cognitive function; Executive function; Epidemiology
Categories
Funding
- National Institute on Aging [R01AG021917]
- National Eye Institute
- National Institute on Deafness and Other Communication Disorders
- Research to Prevent Blindness
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Olfactory impairment is associated with cognitive impairment in older adults but less is known about the association of olfactory impairment and cognitive function in middle-aged adults. The association between olfactory impairment and cognitive function tests of attention, processing speed, and executive and psychomotor function was explored in 2837 participants (21-84 years; mean age 49 years) in the Beaver Dam Offspring Study. Among middle-aged participants (aged 35-64 years), those with impairment on an odor identification test took significantly longer to complete the Trail Making Test (TMT-A and TMT-B) and the Grooved Peg Board (GPB) test, than those without olfactory impairment in regression models adjusted for multiple factors. Similar results were found for the TMT-A and TMT-B, but not the GPB, in the whole cohort. Olfactory impairment was associated with poorer performance on cognitive function tests in a primarily middle-aged cohort.
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