Metabolic Syndrome Status Changes and Cognitive Functioning: Insights from the Lifelines Cohort Study

Area of Science:

• Neuroscience
• Public Health
• Epidemiology

Background:

• Metabolic syndrome is linked to a higher risk of dementia, but its longitudinal impact on cognitive function remains debated.
• Understanding how metabolic syndrome status changes over time affects cognition is crucial for public health strategies.

Purpose of the Study:

• To investigate cognitive differences based on longitudinal changes in metabolic syndrome status.
• To determine the prevalence of metabolic syndrome within the Lifelines population study.

Main Methods:

• Longitudinal analysis of 14,609 participants from the Lifelines cohort, categorized by metabolic syndrome status (2007-2013 and 2014-2017).
• Cognitive functions including psychomotor speed, visual attention, visual learning, and working memory were assessed using the Cogstate Brief Battery.
• Statistical analysis using ANCOVA models, controlling for education, age, sex, and time between assessments.

Main Results:

• No statistically significant differences in cognitive outcomes were observed among the four groups based on metabolic syndrome status changes.
• The prevalence of metabolic syndrome increased with age and varied between sexes in the study population.
• The study identified specific prevalence rates for metabolic syndrome within the Lifelines cohort.

Conclusions:

• Longitudinal changes in metabolic syndrome status did not appear to influence psychomotor function, visual attention, visual learning, or working memory.
• The duration of metabolic syndrome exposure was not assessed, limiting the interpretation of findings.
• Further research is needed to explore the relationship between the length of metabolic syndrome exposure and cognitive decline.