Baseline factors associated with reversion from MCI to normal cognition.

BSIT = Brief Smell Identification Test; CI = confidence interval; MCI = mild cognitive impairment; MMSE = Mini-Mental State Examination; OR = odds ratio.aSix multivariable regressions were conducted, one for each of the sets of variables labelled cognitive reserve, sensory, health and genetic, neuroimaging, personality, and diagnostic. For example, the regression for the cognitive reserve set featured education and mental activity, whereas that for the sensory set featured BSIT score and visual acuity. All ORs are adjusted for age and sex (neuroimaging results are also adjusted for intracranial volume).