Association between vitamin B levels and cognitive impairment in older adults.

Introduction: Whether vitamin B deficiency is associated with cognitive impairment remains controversial.

Objective: To determine the association between vitamin B serum levels and cognitive performance.

Methods: Two-hundred and forty-one adults aged ≥ 60 years who had serum vitamin B serum levels measurement were included.

Validity and Reliability of the Spanish Version of the Montreal Cognitive Assessment (MoCA) for the Detection of Cognitive Impairment in Mexico.

Objective: To establish the validity and reliability of the Montreal Cognitive Assessment in Spanish (MoCA-S) to identify mild cognitive impairment (MCI) and dementia in the Mexican elderly population.

Material And Methods: 168 participants from a memory clinic in Mexico City were enrolled and divided into 3 groups: 59 cognitively healthy (CHG), 52 with mild cognitive impairment (MCI) (DSM-5 criteria) and 57 with dementia (NINCDS-ADRDA criteria). The MoCA-S and Mini-Mental State Evaluation (MMSE) were applied at baseline and during the last months to establish intra-observer reliability.