Changes in Cognitive Impairment in the Czech Republic

Area of Science:

• Gerontology
• Epidemiology
• Cognitive Science

Background:

• North American and Western European studies indicate stable or decreasing trends in cognitive impairment across birth cohorts.
• This study investigates cognitive impairment trends specifically within the Czech Republic.

Purpose of the Study:

• To examine changes in the age-specific prevalence of cognitive impairment in the Czech Republic.
• To identify factors associated with observed changes in cognitive function among older adults.

Main Methods:

• Utilized data from the Czech Survey on Health, Ageing and Retirement in Europe (SHARE) waves 2 (2006/2007) and 6 (2015).
• Cognitive impairment was assessed using scores from verbal fluency, immediate recall, delayed recall, and temporal orientation tests.
• Logistic regression analysis, adjusted for sociodemographic and clinical factors, was employed to compare prevalence between waves, with sensitivity analyses conducted.

Main Results:

• The age-specific prevalence of cognitive impairment decreased by approximately one-fifth, from 11% in 2006/2007 to 9% in 2015.
• This decline was consistent across all sensitivity analyses.
• Associated factors included reduced physical inactivity, improved management of high blood cholesterol, and increased years of education.

Conclusions:

• Older adults in the Czech Republic demonstrate positive developments in cognitive aging.
• Increased educational attainment, enhanced cardiovascular risk factor management, and decreased physical inactivity are key contributors to improved cognitive health in this population.