Article

[Cognitive impairment and associated factors in older adults in Mexico].

Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México.
Salud publica de Mexico (impact factor: 0.94). 02/2007; 49 Suppl 4:S475-81.
Source: PubMed

ABSTRACT To determine the prevalence of cognitive impairment in the elderly and its relation with sociodemographic and health factors in the Mexican population.
From the first wave data of the National Aging and Health Study, collected in 2001 in Mexico, subjects 65 years or older and who had completed a cognitive assessment were selected. Subjects were classified according to two groups: with and without cognitive impairment, based on the cutoff point corresponding to the 10th percentile of the total cognitive assessment score, adjusted for age and educational level. All subjects with cognitive impairment that also had difficulty with one of the activities of daily living were classified as a third group: with cognitive impairment and functional dependency. Prevalence rates were calculated, and an association with demographic and health variables was established through regression analysis.
Seven percent of the population had cognitive impairment while 3.3% had both conditions. The probability of cognitive impairment was not significantly associated with any demographic or health variables. Cognitive impairment and functional dependency indicated an association with gender, age, marital status, diabetes, stroke, heart disease and depression.
The high prevalence of cognitive impairment and its relation with chronic disease frequently observed in the Mexican elderly suggest the need to increase early identification of both conditions in the population.

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  • Article: Prevalence of Cognitive Impairment and Depression among a Population Aged over 60 Years in the Metropolitan Area of Guadalajara, Mexico.
    Genaro G Ortiz, Elva D Arias-Merino, María E Flores-Saiffe, Irma E Velázquez-Brizuela, Miguel A Macías-Islas, Fermín P Pacheco-Moisés
    [show abstract] [hide abstract]
    ABSTRACT: Background. Cognitive impairment is an important clinical issue among elderly patients with depression and has a more complex etiology because of the variable rate of neurodegenerative changes associated with depression. The aim of the present work was to examine the prevalence of cognitive impairment and depression in a representative sample of adults aged ≥60 years. Methods. The presented work was a cross-sectional study on the prevalence of cognitive impairment and depression. Door-to-door interview technique was assigned in condition with multistage probability random sampling to obtain subjects that represent a population of the Guadalajara metropolitan area (GMA), Mexico. Cognitive function and depression were assessed by applying standardized Mini-Mental State Examination of Folstein (MMSE) and the Geriatric Depression Scale (GDS), respectively. Results. Prevalence of cognitive impairment was 13.8% (14.5% women, 12.6% men); no significant differences by gender and retired or pensioner were found. Prevalence of depression was 29.1% (33.6% women, 21.1% men); no significant differences by retired or pensioner were found. Cognitive impairment was associated with depression (OR  =  3.26, CI 95%, 2.31-4.60). Prevalence of cognitive impairment and depression is associated with: being woman, only in depression being older than 75 years being married, and a low level of education. Conclusion. Cognitive impairment and depression are highly correlated in adults aged ≥60.
    Current Gerontology and Geriatrics Research 01/2012; 2012:175019.
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Keywords

10th percentile
 
chronic disease
 
cognitive assessment
 
cognitive impairment
 
cutoff point corresponding
 
educational level
 
first wave data
 
functional dependency
 
Health Study
 
health variables
 
heart disease
 
marital status
 
Mexican elderly
 
Mexican population
 
National Aging
 
Prevalence rates
 
regression analysis
 
subjects 65 years
 
third group
 
total cognitive assessment score